Eureka Math
First Grade
Module 1
Lesson 30
At the request of elementary teachers, a team of Bethel & Sumner educators met as a committee to create Eureka slideshow presentations. These presentations are not meant as a script, nor are they required to be used. Please customize as needed. Thank you to the many educators who contributed to this project!
Directions for customizing presentations are available on the next slide.
Customize this Slideshow
Reflecting your Teaching Style and Learning Needs of Your Students
Screen A
“pop-out”
Screen B
Icons
Read, Draw, Write
Learning Target
Think Pair Share
Individual
Partner
Whole Class
Small Group Time
Small Group
Personal White Board
Problem Set
Manipulatives Needed
Fluency
Materials Needed
I can solve add or change unknown math stories using the RDW way.
Happy Counting by Tens
Count from 0-120 and back by tens, then from 9 to 119 and back.
Say all of the numbers. Watch my fingers to know whether to count up or down. A closed hand means stop.
Math Hands Flash
Partners of 10:
T: Show 9 fingers
Show me how many fingers I need to make 10.
Math Hands Flash
Good!
9 + 1 = 10
so 10 - 9 =?
Look at your hands.
Math Hands Flash
Continue playing, eliciting all partners of 10. If students are highly successful, switch to other totals within 10, such as 9, 8, or 7.
Number Bond
Dash: 10
Let’s do a Number Bond Dash!
Application Problem
Freddie has 10 action figures in his pocket. Five of them are good guys. How many of his action figures are bad guys? Box the solution in your number sentence, and include a statement to answer the question. Make a math drawing. Circle the part that is good guys to show you have the correct number of bad guys.
Concept Development
Display 5 books on a shelf for students to see.
How many books do I have on this shelf?
Concept Development
A student came and put some more books on the shelf.
How many books are there now?
Concept Development
Let’s make a number bond to figure out how many more books the student brought.
Concept Development
Turn and talk to your partner about what you can do to solve how many more books the student put on the shelf.
Write the number sentence, but leave the mystery number blank.
Concept Development
Great Strategies!
Have a student who used subtraction and one who used addition to share with the class.
Concept Development
Nice work! Did we all get the same answer, even though some used an addition sentence and others used a subtraction sentence?
Concept Development
Now let’s draw a picture number bond to show the story.
T: Draw circles in row to represent the total of 7 books. Put a box around it, just like the number has a box around it in the number bond.
Now it’s your turn to draw!
T: Models this process again with the students.
Concept Development
Now let’s practice more stories like the one we just did.
There are 4 pencils in Justin’s pencil box. Justin put some more pencils in his box. Now, he has 7 pencils total.
How many pencils did Justin add to his pencil box?
Draw a picture number bond to show the story.
Concept Development
Now let’s practice more stories like the one we just did.
There are 4 pencils in Justin’s pencil box. Justin put some more pencils in his box. Now, he has 7 pencils total.
How many pencils did Justin add to his pencil box?
Concept Development
Turn and talk to your partner about what you can do to solve how many more pencils the student put in his pencil box. Write the number sentence, but leave the mystery number blank.
Now let’s draw a picture number bond to show the story.
Concept Development
What if we drew the number story in this number bond. Talk with your partner how we would fill in this bond.
Concept Development
How would we label this bond?
Label together.
Concept Development
6 friends were playing on the playground. Some more friends joined them. Now, there are 8 friends playing on the playground. How many students joined them?
Remember to write a number sentence and a number bond with labels.
Concept Development
Six birds were in a tree in the morning. Some more birds joined them in the afternoon. Now there are 9 birds in the tree. How many birds came in the afternoon?
Try writing a addition sentence and a subtraction sentence to match your story. Add a number bond with labels.
Concept Development
How did you use your math drawing to show how you can use addition to solve the problem?
How did you use your math drawing to show how you can use subtraction to solve the problem?
Problem Set
Problem Set
Debrief
How did the addition sentences help you solve today’s problems? How did subtraction sentences help you solve today’s problems?
Debrief
Which problem do you think would be solved most efficiently using subtraction? Why?
Debrief
What new math strategy did we use today to communicate precisely? Explain how it is helpful.
Debrief
How is drawing a picture number bond similar to and different from your past math drawings?
Debrief
How did the Application Problem connect to today’s lesson? Draw a picture number bond to match the story.
Exit Ticket