APCSP Computer Science Principleslogo_columbine_002.png

meets in Bus-4 Lab & occasionally in Photo Lab

Upon Completion of this Course, students interested in more Computer Science classes should consider one of the following certificated programs at Arapahoe Community College


DIRECTIONS: To turn in these assignments, simply copy the assignment portion with a date like 20180907 and list your answer underneath. Answer ONLY the highlighted blue ?s 

August 17, 2018

  1. What contests do we want to sign up for this year?
  2. Which field trips do we want to go on?
  3. How will we help others on Columbine’s 20th Anniversary of the Day of Remembrance Volunteering this year?

August 21, 2018

  1. Create a new Google Doc titled “APCSP + Your Name 2018-19" published to the web
  2. Copy & answer question from 20180817 + 20180821
  3. Complete the New to APCSP Questionairre 
  4. 20180821: An 11-year-old changed election results on a replica Florida state website in under 10 minutes. What do you think about this? What is DEF CON? How did he do it? How do you think this will impact Fall Election precautions?
  5. SIGNUP REMINDERs → use code CMCYGT for new 2018-19 code.org account + Signup for Remind texting 81010 with @hansenapcs in the message
  6. Code.org → complete U1, L1-2
  7. Create your own Piktochart or Chart Go infographic illustration showing a change in data in your life. For example, three different mile times, grades, etc. Create your infographic in the same program we used last year

August 23, 2018

20180823: Paste a screenshot of your infographic you created yesterday, here. Explain the relevance of the data.

Create an infographic that expresses a way in which you have improved some kind of data in your life over a period of time. What is the trend in VR for the last 3-5 years based on the research you’ve done this week. Consider how things have changed in Virtual Reality in the last 3-5 years. Underneath, describe the relevance of the data you collected, where it came from, and why it is relevant to proving

Code.org → complete U1, L3-4

August 24, 2018

Continue working on your python animation

Code.org → complete U1, L5-6

20180824: Converting Binary Numbers… What pattern do you notice in the alphabet binary code chart at right?

August 28, 2018

Continue working on your Python Animation. Be prepared to film your animation running and explaining what the code does.

20180828:What is Quantum Computing? What Makes Quantum Computing Different? How has it changed over time? How does it calculate speed?

Continue working on your Python Animation. Be prepared to film your animation running and explaining what the code does.

August 30, 2018

Update all your Google Doc Assignments; I will grade them at the end of next week.

Complete your Python Animation, including drawing the objects and then adding animation movement

Code.org → complete U1, L7+ FINISH IT!

20180830: List your script that explains what you will say on video explaining what you were trying to do and what your program runs.

MS H’s EXAMPLE → You write your own!!!: I used Python Turtle to create a scene which shows a growing garden. I did this by __________________. I then wrote a function that would ___________. I did this because __________________. I tried to do __________ but it didn’t work, so I did this instead and it worked better. Lastly, I created a timed loop that would add flowers one by one to the garden scene.

August 31, 2018

Complete your Python Animation (Please show Alex who’s new today what you’re doing so he gets a sense of what he’ll have to do. He already has a flower animation with rainbow petals)

Update all agendas. If there is time, you may begin the one for 9/7

Code.org → Unit 1 Chapter 1 Assessment

20180831: What is the hardest part about programming in Python Turtl? Why? What has been the best resource for you? Why? What is the best thing about learning Python, for you? Why? Why do you like or not like this language? If no, what would you prefer instead?

September 5, 2018

Record  your video

Look at some sample videos and score one using the Create Task Rubric

20180905: Write your script of what you want to explain in your video for today’s assignment. Must be less than two minutes

September 7, 2018 → DUE TODAY → AGENDAS from 8/17-9/7, 90 pts

DUE TODAY → Finish your recording and email link to your video to hansensclasses@gmail.com. Consider using APowerSoft screen-recorder at home after downloading the plugin. You will need a microphone

Game Test the technology you’ll want to use to build your game in Project 2

20180907: Letter To The Teacher →  Write a letter to the teacher explaining, in general, ONE PARAGRAPH FOR EACH TOPIC of the following topics:

Dear Ms Hansen,

The beginning of school has been pretty… (1 paragraph)

This class is… (1 paragraph)

Life is… (1 paragraph)


Your Name

Tuesday, September 11, 2018 →

Begin Game Development

20180911: Game Programming Terms ame Programming Terms → Define the purpose for each of the following attribute you’d use in game coding:

Thursday, September 13, 2018 →

Code.org → CSP Unit 1: Complete Lessons 8-14
NOTE: Be sure you are logged in to your Jeffco IN YOUTUBE
so you can view the videos…

20180913: Game Plan Describe the plan you have for your game, in 1 paragraph.

Friday, September 14, 2018 →

Guest Speaker: Zach Kurtz, Game Developer → Metro State Math & Computer Science Major

Load Annihiliation Demo, http://hansensclasses.com/studentwork/portfolios2017/kurtz_zach/game_annihiliation/index.html

We move to the Mac lab next week. Save all your files in your Google drive.

20180914: Game Dev Guest Speaker ?s ist 10 Things a Game Developer could learn from Golden Flames Studio Developer Zach Kurtz (CHS ℅ 2018)

Monday, September 17, 2018 MEET IN MAC LAB for INSTALL DAY

20180917: What is the best IDE to use on a internet-connected chromebook (or online)? And why?


Python & IDLE (doc for using Python on a Mac) → By default, .PY files will open in TextEdit (like notepad, it comes bundled with OSX. Go to menu “Format > Make Plain Text” to turn off text formatting, 'Command+Shift+T”). By default it will write files in non-ASCII format, which messes things up. It also lacks any decent formatting options. So install XCode next! As well as the free one with Python called IDLE (in your App folder) → Click to view the video on Downloading and Installing Python IDLE (Python Shell)

Go to the App Store → Click LOGIN (at right) → Ask Ms H to login to login & pw to install the following:



Java SE JDK 10 + SE 10 Runtime Environment

Eclipse instructions for JAVA, C/C++, JavaScript, PHP

Max’s Notes → Install the JAVA Ide for EE developers package

After opening in Eclipse, open the New Java class (call it Main) 

Android Developer Studio Instruction Install + Build Your First App Vid

Arduino for MacOS


  • Atom.io? BLOCKED → Some people think this one is cooler. Install on your laptop if you like this IDE better than Notepad++
  • GitHub.com? BLOCKED
  • Notepad++ (How to run C/C++ or Java programs in Notepad++) NOTE: This is blocked in the BUS-4 lab downstairs; can you read it upstairs?
  • XCode → Is this in your App Folder??
  • Organize your “dock” (the thing at the bottom of your screen). Drag all recently downloaded apps from the rocket launcher icon or app folder onto your dock. Delete any apple-related products you won’t use on the regular. NEVER SIGN IN TO YOUR PERSONAL APPLE ACCOUNT OR MAIL CLIENT ON THIS MACHINE (i.e. facetime, email, etc); It doesn’t log you out! Always use google. Always sign out of google AND logout when you leave this lab!
  • The following IDE Dev apps should now be in your dock → XCode, Visual Studio, Eclipse, Notepad++, Android Dev Studio,

Wednesday, September 19, 2018 →

Install Microsoft Visual Code Studio

Open Python IDLE → Create a Print Message. Does it work like it did to print a message in REPL?

Create a TEST EXAMPLE: print(“Hello World!”)

20180919: Software IDE preferences SIMILAR QUESTION: As we are testing some of the new software to see if they run correctly, think about the software applications we just installed. What is the best IDE program you know to type & test your code into that runs on the internet. Why?

Open IDLE > File > New File > type your print message (in the text editor)> save as test.py  > go back to the shell> File > Open (find test.py to open in shell > Run > Run Module (you should see this run in your shell)

How to install Python in the Eclipse IDE (Alex’s Notes)

  1. Install the latest version of Java JDK
  2. Install PyDev from the PyDev website
  3. Download and install eclipse
  4. After the eclipse menu opens, select Eclipse IDE for Java EE Developers
  5. Click ok when prompted
  6. When at the welcome menu, click help
  7. Click install new software
  8. Click add
  9. Name: PyDev Location: http://pydev.org/updates
  10. Click only the first PyDev check box and click ok when prompted
  11. Open perspective and click PyDev
  12. File>begin new pydev project


  1. Make sure xcode is downloaded
  2. Go to https://nostarch.com/inventwithpython/ 
  3. Find the EXTRA link > “pygame install instructions for mac”
  4. Install xquartz
  5. Log out and have Hansen Administrator log in
  6. Repeat b and c
  7. Continue with command line (terminal) commands
  8. Hope it works !?
  9. Install Homebrew thru the terminals

Friday, September 21, 2018 →

20180921: IDE Editor Download Packet Downloader ? → REMEMBER THIS ANSWER FOR THE AP EXAM → y does the computer divide up all the packages you have to download for Eclipse, separately? Basically, why are there so many add-ons after you have to also download after you’ve already installed the program. Hypothesize. How might this be useful for the software application company?

Open Eclipse and test that Java is running. Open the Java IDE for EE Developers in Eclipse, then open the New Java Class (and name it main). Next, run a basic print command

Then, continue working on your game

Tuesday, September 25, 2018 →

Similar to what you will take for the 72 May 11 APCSP ?s, Take the code.hs PRE QUIZ, Class Code E5B22

PROJECT 5 → You will create a database inventory of students that worked on the Joey Santaniello Walk for All 5k in the following categories: full name, grade, class, etc, This will serve as a template to organize your own database of Race Registrants for the October 8 event. See me if you want to use MySQL

20180925: 9/25 We’ll re-answer this one in class on 9/27 Grocery List Aisle Separator → List the code for how you separate and combine two Grocery Lists with mean or nonmeat in Python?? Paste your Run Code as your answer

  1. Create a list of 10 grocery items (must include two meat items).
  2. List the 10 items of a grocery list in alphabetical order.
  3. Separate by meat or veggie options

Thursday, September 27, 2018 →

Open Visual Studio Code | Be sure you have installed the Python Extention

On my computer, it installed it into my Downloads folder and I dragged the program icon OUT of there and INTO Applications. OR, you can open the program and then click “install support for Python” from right when you open it. This will give you debugging support. Restart the program after install.

20180927: Magic Eight Ball Randomizer → How do you create a Magic Eight Ball randomizer? Paste your code here as your answer.

Tuesday, October 2, 2018 → Joey Santaniello Walk for All 5k SQL Databases Week → About / Syntax / Setup

20181002: SQL Questions → Intro to SQL @ W3Schools:

  1. What is a query?
  2. What is a database and what can it do?
  3. What is SQL?
  4. To be compliant with the  ANSI/ISO standard, what are some of the five commands your db must include?
  5. Review. What is a table?
  6. In SQL, what is a record? What is a column?
  7. How many tables are in a database (db)?
  8. Y/N, Are SQL Keywords CASE SENSITIVE?
  9. In SQL, what symbol do you use to end/separate statements? _
  10. Complete the chart explaining the role of the following 11 statements for writing commands in SQL

1. __ SELECT

2. __ UPDATE

3. __ DELETE 









A. deletes an index

B. extracts data from a database
C. deletes data from a database
D. creates a new database
E. creates a new table
F. deletes a table
G. updates data in a database

H. inserts new data into a database

I. modifies a database

J. modifies a table

K. creates an index (search key)

  1. Using the SELECT and FROM keywords, what code would you run to return the 91 records in the Northwind Sample Database in w3schools including contact name, city and postal code?

  1. What statement would show ALL the columns of the Customers Table? __ __ __ __ __ __
  2. Sometimes, you might want to create a query that doesn’t show you repeat answers. Which statement only shows you the DISTINCT or DIFFERENT Values? You will use this for project 5
  3. Using the SELECT DISTINCT command, how many different countries are listed in the sample database?
  4. What does the WHERE clause filter? ______________ and what does it extract? ____________________

Review the Project Portfolio List. Begin PROJECT 5: which will will list the Joey Santaniello Walk for All 5k registrants has been sent to us. The event leader needs to know how many t-shirts to order? Create a database that will list who ordered a shirt and what size, so we can order them in time for the event. Some of you will complete this task today. This is needed ASAP! How do you display your result online, using the reference to the registrant data file as your input?

AGE        FIRSTNAME        LASTNAME        GENDER        ZIP        CITY        STATE        SHIRT        TRANS_NUM        TRANS_DATE        FEE        EVENT


  1. Use the Search in the top right corner to open “terminal”
  2. Type “SQLITE3 walk4all.db”
  3. Type “create table walk4all (age int, firstname text, lastname text, gender text,” etc… for all categories)
  1. Insert into walk4all values(“50”, “Rae”, “Manzanares”, “F”, “80123”, “Littleton”, “CO”, “medium”, “06755007”, “9/23/2018”, “35”, “5k”); (“18”, “Cameron”, “Manzaneres”, “M”, “80123”, “Littleton”, “CO”, “large”, “Q6755013”, “9/23/2018”, “35”, “5K”);

Use INSERT INTO to record data into table

Add commas between each entry

Separate each entry by parenthesis, ending with a semicolon

Leave out the time the registration purchase occurred

Once you type the list, you may use ALTER TABLE or ALTER COLUMN to fix something you want to add or subtract something you inputted into your database

Thursday, October 4, 2018 → SQL DB Week Joey Santaniello Walk for All 5k → RUN CODE

20181004: DB ?s

  1. ___ How many people need t-shirts from the list of people who registered?
  2. What code displays the names and which sizes they ordered?
  3. How do you display your result online, using the reference to the registrant data file as your input?

Friday, October 5, 2018 → SQL DB Week Joey Santaniello Walk for All 5k  → EVALUATE + UPDATE PROJECT PORTFOLIO

20181005: Six-Sided Dice Probability 

  1. What is the probability of rolling a 4 on a six-sided dice
  2. When you rolled your own die, how many times did you have to roll this before this probability was proven?
  3. How do you prove this? What code did you use that found a consistent answer? Paste that here, as your answer

Tuesday, October 9, 2018

Complete the Evaluation Form → https://goo.gl/forms/XNTI62rbhR5JCoKT2 

20181009: Probability Problem Code Comparison → Is there a “right” way to write code?

Review the different ways your classmates estimated the 16.667 probability that a 4 would be rolled on the die in the Python Code Examples at top

Code 1

Code 2

Code 3

Code 4

  1. Which of the following codes is more correct? Why?
  2. Which is the most straightforward and easy to read? Why?


Review your db. If it won’t run in REPL or on your website, screenshot it from your IDE i.e. SQLite3 from the mac lab that shows your database running, wrote input and output from python or html/javascript, include THAT on your portfolio explaining which IDE you used and how your code works if you cannot show it running for itself.

Thursday, October 11, 2018

20181009: DB & SQL Evaluation Questions

  1. Y/N Did you work with a partner
  2. Which language did you choose?
  3. How successful was your code? How far did you get?

Tuesday, October 16, 2018

20181016: Python Database Description For each question, copy and paste the code that does each part

Joey Santaniello Walk For All 5k T-Shirt Order Python Database Description

1. How many different shirt size possibilities are there?

A. __

2. Which items are in the list?


3. What is “i” in this mathematical sequence? What does that mean?

C. i =

4. Which command asks for the size?


5. Which code tells the computer to check for the next person?


6. Which code moves on to the next person’s shirt size entry?


7. Which code lists who gets a medium size?


8. Which code lists if a person did not order a shirt?


9. What code causes the program to run after the specified number of entries have been added?


10. Which code appends or adds a name to the list?


11. Which piece of code gives a total number of people who are not getting shirts?


Asks the size

Moves on to the next person to enter

CLASS WORKS → A) Classmate Demo → how to complete a python DB… B) Update your Portfolio C) Complete code.org U2 Lessons 1-2 4) Work on your Game

Thursday, October 19, 2018

20181019: What type of game will you be developing. Why?

Back to Construct 3 → continue working on your game

Friday, October 19, 2018

20181019:  CS Copyright and Licensing fort

1. What is the Mission of Creative Commons licensing?

2. Why would you want to get a Creative Commons license? How can it be a helpful resource for a builder?

3. If you could make something for yourself that was shared on CC, what would it be and why?

4. Why do they not recommend using CC for software or computer hardware?

5. Text is so easily shared and you know from how Facebook began, it is very easy for someone else to Pirate your idea. Where should you go to copyright or license your code? Or to license your original game

List which piece of our tshirt Python Database completes each of the following functions





















201809##: Answer parts A + the chart in B

A. Answer the following: Is a Mac Good for Programming?

Here are three reasons why people prefer mac over PC

1) When it comes to Hardware, ____________________________

2) Besides developing Windows Apps, the Development Environment is ____________________________

3) There are plenty of alternatives to the Development Tools you use on a PC, such as ____________________________

B. Python Crash Course. Complete the chart explaining one way you can use Python IDLE to compute the following functions. We’ll go through these together. OPEN PYTHON IDLE COMMAND LINE SHELL and Create New “practice.py” (save to documents).

In the terminal type the following 2+2

When you click return, do you get the correct answer?

Now let’s try print(“hello world”)

Type exit() What question are you asked?




Print Code

Building Hello World

Basic Print Function

Hello World!

Variables and Expressions


How to include User Input

Conditional Structures



Adding / Subtracting Sums

Multiplying to solve simple algabraic equations

X + Y =11

X = 2

Solve for Y

Friday, September 28, 2018 →

1st 6-Week Grades due!!! → Show your Magic Eight Ball working in IDLE to Ms H. Then, copy your code to REPL, calling your project Magic Eight Ball

20180928: Being able to manage a computer database is a highly valued skill by our society. PART I. Perform a job search for SQL Developer jobs in Littleton, CO on the job application site, Indeed used by Professionals. List the following details you find for four different types of jobs, starting with someone just starting out to someone who has been doing this career for a long time. Then answer the fifth question under the table.

Job Title

Small Company or Large Company?


Skills they want you to have


Y/N College Degree

(What name do you find for a “beginning” or “just starting out” SQL Developer)

(What name do you find for an “Advanced” SQL Developer?)

PART II. DON’T FORGET TO ANSWER THIS QUESTION → Based on your research, what job search advice might you give someone who was just starting out in this field and wanted to break in?

Monday, October 1, 2018 → Begin Organizing the SQL Database for the Walk For All 5k

Spencer came and talked with us Friday and said there are 16 registrants. They must include name, age, email, gender,  birthday, address, & phone. Of those seven categories

As of 20180928, we had 14 registrants, though many more are expected to sign up on the day of the event. To prepare, we will create and organize the list of all of the ones we have so far. Senior CHS Student Spencer will help us with all the names. You will need to show Ms H that this works IN CLASS to receive credit for this assignment via

20181001: List the categories you will list for each registrant (we started this Monday, last week)

Open w3schools to get started

Wednesday, October 3, 2018 → Python Date and Time

Begin your APCSP Portfolio website using google sites or REPL

20181003: What is the probability that a six-sided die will produce a 4?

Project 7: produce the die roll

Project 6 Solve your t-shirt size ?s using Tables?

Friday, October 5, 2018 → Python Date and Time


20181005: P

Tuesday, October 8, 2018 → Python Date and Time

Create a google site for your Portfolio of Code Samples from this class. You will have several parts to the site, but right now, we will display some examples of your working code from APCSP on a page uploaded from REPL. Upload your Grocery List & Magic 8 Ball to REPL. Then, embed the code from those two REPLs onto your site. Click HERE for the instructions on how to embed your REPLs w/o showing the code part.

20181008: P

Python Date and Time

Python Files

Python + Web Data

Download the Exercise File Zip for Python

REVIEW BASE CONVERSIONS. Rewrite the following numbers in base 10 for today’s ?. If you need to, consider writeing out a table like the one listed below. Thursday’s question will have to do with converting decimal to binary

  1. _____ ← 720
  2. _____ ← 1121122211
  3. _____ ← 10101010
  4. _____ ← 8485971
  5. _____ ← 84210
  6. _____ ← 64321684210
  7. _____ ← 10101010101
  8. _____ ← 88888888
  9. _____ ← 333111
  10. _____ ← 10001


1. Base 10 In base 10, the digits, from right to left, specify the 1’s, 10’s, 100’s, 1000’s, etc.

These are powers of 10 (10x ): 100 = 1, 101 = 10, 102 = 100, 103 = 1000, etc.

Each digit in a base 10 number can have a value from 0 to 9.

Base 10 numbers are commonly referred to as “decimal” numbers.

2. Notation As we work with numbers, the following notation will be used. The top row of the table shows the value for each place in the number. The second row shows the actual digits in the number. 123 is represented by:




← places




← digits

3. General Base Definitions

Base n means that each place (x) in the number represents nx . (n0 , n1 , n2 , n3 , etc.)

Valid digits in base n are 0 to n-1.

When working with numbers in different bases, a subscript is usually used to indicate the base

e.g. 25310 means 253 in base 10

We can represent any number in any base. The number will usually look different when expressed in another base, but its value is the same. When a number is stored in the computer’s memory, it has a specific value; we can show it using base 10, base 2, base 16, etc., but the value never changes -- only the representation changes.

4. Base 2: Binary

Each digit in a base 2 number can have a value of 0 or 1.

Places are 1’s, 2’s, 4’s, 8’s, etc. (20 = 1, 21 = 2, 22 = 4, 23 = 8, etc.)

Computers store numbers in binary, which is the common name for base 2 numbers. Each binary digit corresponds to one bit of memory. There are 8 bits (or 8 binary digits) in a byte. The computer stores values in memory by turning these bits on (1) or off (0) to correspond to the binary representation of the number.

4.1. Converting binary to decimal Converting from binary (base 2) to decimal (base 10) requires doing a little math with the dig


Begin Game Development → What is a pitch? What important things about your game should be included?


Game Programming Terms → Within each of the following qualities, there are several attributes you can define. Define an example of each of the following specific Events, Properties, Types of Variables, Tags at the Bottom attributes you plan to use in your own game for the following:

  1. Property:Color →
  2. Property:Opacity →
  3. Property:isShowing →
  4. Property:Vehicle →
  5. Property:Skin Texture →
  6. Property:Filling Style →
  7. Types of Variables:World-Level Variables →
  8. Types of Variables:Class-Level Variables →
  9. Types of Variables:Method-Level Variables →
  10. Events:When The World Starts →
  11. Events:When a Key Is Typed →
  12. Events:Events:When the Mouse Is Clicked On Something →
  13. Events:While Something Is True →
  14. Events:When a Variable Changes →
  15. Events:Let The Mouse Move Objects →
  16. Events:Let The Arrow Keys Move Subject →
  17. Events:Let The Mouse Move the Camera →
  18. Events:Let The Mouse Orient The Camera →
  19. Tags at the Bottom:Do In Order →
  20. Tags at the Bottom:Do Together →
  21. Tags at the Bottom:If/Else →
  22. Tags at the Bottom:Loop →
  23. Tags at the Bottom:While →
  24. Tags at the Bottom:For All In Order →
  25. Tags at the Bottom:For All Tog
  26. ether →

Current Industry Sectors in Tech

Monday, November 27, 2017 BLUE DAY




Who wants to go to JeffCon??

Who wants to join Code Quest?


April 20, 2018 Day of Service Volunteering Opportunities

  1. 10-3 Cafe 180 meets at 3315 S Broadway; Englewood, CO 80113 - See Mr Garkow - Students will help to prepare meals for homeless visitors
  2. Catholic Charities meets at Columbine to make lunches and a few will take the meals on Sat - See Ms Van Norstrand
  3.  in the main office - sign up sheet not public, this is a girl’s lacrosse team project GLAX to make 300 sack lunches for women’s shelter.  Lunches to be made in FACS room at CHS.  GLAX board to provide all materials.  Lunches will be delivered to shelter following  morning (4/21) by 5:30am.
  4. 9:30-1:30 Chatfield State Park meets at Chatfield State Park - See Aimee McElroy - variety of projects to help Chatfield State park. Bring a lunch
  5. 8:30-noon Clement Park Clean Up meets at CHS - See Leslie Layman Arch -
  6. 8:30-2:45 Columbine Hills Elementary - See Ms Saout - front entrance and grounds beatification
  7. 8-2:30 Columbine HS Beautification - See Ms Levin or Ms Kling - painting and other projects. Letvin will recruit the painters.  If there are other projects, we will need a leader.  Tamra mentioned grounds cleanup and beautification, window washing, gym & auditorium cleanup.
  8. 7:30-9:30 Denver Rescue Mission - See Mr Moore or Mr Woodruff - Alex has a contact through his parents and church with the Denver Recue Mission.  Volunteers need to be at least 10.  Meet at CHS and drive in a few vehicles.
  9. 9-1 Dutch Creek Elementary (Outside) meets at Dutch Creek Elementary - See Ms Doucett - Re-work the 2 front planters. Weeding, planting plants, planting bulbs, and adding new bark.
  10. 10 AM Dutch Creek Elementary (Reading) meets at Dutch Creek Elementary - See Deb Eurick - work with students...they love the reading idea w/ kind. & 1st graders
  11. 9-noon Family Tree Art Project meets at CHS - See Ms Berve - Students with artistic flair are needed to create a family tree mural at CHS
  12. Gardens at Columbine Memory Care meets at 5130 W Ken Caryl Ave, Littleton, CO 80128 - See Ms Testa - sit w/ residents, play cards/games
  13. Girls Softball Dave Sanders & Jody Reeves field clean up - See Jim Santaniello - Cleaning up the fields
  14. 9-3 Governor's Ranch Elementary meets at GRE Art room - See Mr Varney - Contact at GRE-art teacher Kate Wheeler - helping hang art might be on ladders and working with tools
  15. 8-noon Jefferson County Open Space Black Bear Trail Building meets at Hildebrand Ranch - See Ms Thomas - TBD - Mountain Biking team participants mostly, but CHS students are welcome,8am-12 noon; Juli Thomas included a waiver in the “Waivers” folder; Transportation waiver needed; Park at Hildebrand Ranch
  16. 9-11:30 and 1:30-3:30 Leawood Helping in a Few Classes - See Ms Rodak in the am session - helping in classes - Check in at the office and Cathy will explain where to go.
  17. Leawood Science Fair - See Ms Rodak - Kelly & Coe will get kids signed up thru their classes--NO SIGN UP SHEET to bring to rest of student body
  18. 8:40-10:30 Normandy Elementary - Reading in Kindergarten Class meets at Normandy Elementary - See Ms Patterson - 3 Classrooms, 10 CHS students per room. one teacher’s name @ Normandy is Erin McCulley
  19. Rescue Dog Foundation Platte Canyon - See Sharon Gardner - collecting donations throughout the month and Sharon will take the items to the shelter on the 20th.
  20. 9-11 Ronald McDonald House - See Suzie Garramone - Writing get well cards.  Students can bring their own art supplies & need to provide their own transportation
  21. Morning Service Project at Ken Caryl Middle School meets at KCMS - See Mr Hargis - Painting the temps behind the school.
  22. 9-noon Shilo House meets at CHS with JV Cheerleading - See Mr Tonelli -
  23. Shifts all day Spanish Mini Lessons meets at KCMS & an elementary school in district - See Ms Cook - Shannon is taking kids to teach mini Spanish lessons...they can either be in a Spanish class or currently speak Spanish somewhat fluently
  24. 8 or 9-2 Spring Cleanup for Elderly Neighbors in Our Community (Leawood) - See Ms Gallagher - Will be helping seniors with yard work, raking, weeding, trimming in the Leawood community.  Students can sign up for 2 hour shifts and can continue if they choose.
  25. 8:30-12:30 Staunton State Park meets at Staunton State Park - See Ms Zichterman - weeding and trail maintenance, participants should bring gloves work time TBD; Waiver needed - will supply
  26. 9-1 Stepping Stone Support Center meets at 9700 Old Coal Mine Ave, Littleton, CO 80123 - See Ms Holland - 4 for product team (making products including candles, lotion, and lip balms); 4 for the Coffee Shop (making drinks for patrons of the food bank); 3 for the Culinary team (making lunch for all participants, staff and volunteers); 4 for the Food Bank (running the food bank and fulfilling patrons orders)        **Lunch Provided for volunteers**
  27. Tennessen Center - See Brian Todd & Girls Soccer - The varsity Soccer team will be helping at the Tennessen Center.  The JV team will be doing something and Brian is not sure about the Level 3 team.
  28. Treasure Trunk Thrift Store meets at 5892 W. 44th Ave Wheat Ridge 303-421-9205 - See  - This is a division of Family Tree which helps abused women and their children- volunteers will be helping at their thrift store.  Family Tree helps women in abusive relationships.
  29. 9:30-11:30 Willowbrook Senior Center meets at Willowbrook Memory care 5275 S Kipling Pkwy, Littleton, CO 80127 (303) 945-3065 - See Allie Grush - stepping stones and garden beautification

Code Qwest Registration opens on January 29th. Students should probably sign up right away.  Competition is on April 21st. Teams are 2-3 students plus one coach. Rules are here: https://www.lockheedmartin.com/us/who-we-are/community/codequest/code-quest-official-rules.html.


www.github.com | www.atom.io | www.emmet.io | www.brackets.io |

Java Quick Reference Sheet

Computer Science A Test Prep 





PRACTICE QUESTION → Which of the following is a true statement about program documentation? Why?

What are your thoughts about Encryption? Do you think it works or do you think any code can be cracked? Then, read the NY Times article on how to protect your laptop if it gets stolen. Then answer the following:

The One Thing That Protects a Laptop After It’s Been Stolen
MARCH 13, 2018

When your laptop is lost or stolen, you aren’t just out $800 (or more). Your personal information is also accessible to whoever takes it, even if you have a password.

“Unfortunately, a typical password-protected user account does nothing to protect your data,” says Dennis Stewart, a security engineer at CipherTechs. “While the password will prevent someone else from logging into your computer, an attacker can still use other methods to copy files off.” If thieves remove the hard drive and put it into another computer, they have access to any files you have stored on it. In some cases, they can even reset the password on your PC and gain access to your email, passwords and other personal information.

Thankfully, you can protect your data against both of these types of attacks with encryption. “Encryption is a mathematical process used to jumble up data. If important files or whole devices are encrypted, there is no way to make sense of them without the key,” Mr. Stewart said. That means if thieves try to access your information, they’ll find only a jumbled mess unless they have your password, and they won’t be able to simply reset that password if the device is encrypted.

Encrypting your hard drive isn’t some super-technical process that only security experts can perform, either — anyone can do it on his or her computer at home, and it should take only a few minutes to get up and running.

How to Encrypt Your Hard Drive

If you have a Windows laptop, you have a few options. Some Windows 10 devices come with encryption turned on by default, and you can check this by going to Settings > System > About and scrolling down to “Device Encryption.” You’ll need to log into Windows with a Microsoft account in order for this feature to work, but if your laptop offers it, it’s an easy and free way to protect your data.

If your laptop doesn’t support Device Encryption, you can use Windows’ other built-in encryption tool: BitLocker. BitLocker is available only on Professional versions of Windows and above (a $99 upgrade for Home edition users), but it’s incredibly easy to set up. Just head to Windows’ Control Panel > System and Security > Manage BitLocker. Select your operating system drive and click the “Turn On BitLocker” button, following the prompts to create a password that will function as your encryption key. Be sure to store your BitLocker key in a safe place — somewhere not on that computer — in case something goes wrong!

If neither of those is an option, a free program called VeraCrypt can encrypt your entire hard drive, requiring your password when you boot your computer. It’s not quite as simple, straightforward and built-in as Windows’ Device Encryption and BitLocker, but if it’s your only option, it’s worth looking into.

Mac laptops are much more straightforward: All modern Macs (since about 2003) have a feature called FileVault that encrypts your entire system drive. Just open your Mac’s System Preferences, head to Security & Privacy and select the FileVault tab. Click the “Turn On FileVault” button to create a password and begin the encryption process. Store your key in a safe place (not on that computer) in case you ever get locked out.

Thankfully, modern iPhones and Android phones will automatically encrypt your data as long as you use a PIN or password, so you need to worry about enabling the feature only on your desktop and laptop computers. If you have an Android phone with an SD card, however, you can enable encryption for the SD card manually from the Lock Screen and Security settings.

Don’t Forget Your Password

There is one catch to encryption: Your password is much, much more important to remember. Data may be protected from intruders, but it’s also impossible for you to access should you forget your password or recovery key. “If a user forgets or loses their key, they’re out of luck,” says Mr. Stewart. “If a bad actor can’t get at your data without the key, you can’t, either.” Some businesses may grant IT departments a master key, but not all do, and this can’t be done retroactively.

So if you’re the type of person who forgets passwords often, it’s incredibly important you write it down — along with the recovery key you were given when you performed the above steps — and keep it in a safe place. Don’t keep it on the computer you encrypted and don’t keep it out in plain sight — put it in a physical safe that only you can access. And no matter what, always keep a good backup of your data, either on another hard drive (which you should also encrypt) or with a cloud service like Backblaze that keeps your data secure.

Whitson Gordon is a writer and editor in San Diego. Follow him on Twitter: @whitsongordon

What are your thoughts about Encryption? Do you think it works or do you think any code can be cracked? Then,

Search Java Source Code → http://www.javased.com/ 

What is the difference between an API or a SDK?

Popular Python Code Cookbook


1) String/Array/Matrix, 2) Linked List, 3) Tree, 4) Heap, 5) Graph, 6) Sorting, 7) Dynamic Programming, 8) Bit Manipulation, 9) Combinations and Permutations, and 10) Math Problems


A. void setup () → sets up and tells the computer to read the code

        B. void loop () → tells the computer to keep running the loop until you tell it to stop (operating your LEDs)

Khan Academy : Drawing in Java

Python Debugger → http://pychecker.sourceforge.net/ 

PY Hangman Game → http://www.pythonforbeginners.com/code-snippets-source-code/game-hangman/ 



REPL.it → https://repl.it/@GamingTimelord19/game




Benefits of functions -- Possible responses:

Functions are examples of Abstraction -- Possible responses: