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Reverse Engineering Forest Scene Kindergarten

Objectives

Resources

Materials

Students will recreate and code a project by looking at a finished project and replicate it by doing reverse engineering.

Videos included

Sample Project
Bird Flying across Stage
Bear Goes back and Forth
Bunny Goes up and Down
Squirrel Spins around
Debugging the Bear
Debugging the Squirrel

Brown Brown Bear Brown Bear What do you see? By Eric Carle

Where is Bear

Level K

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Reverse Engineering Forest Scene

Sprite

Algorithm

Loop

Event

Debug

Vocabulary

Engage: Read the book one of the bear books.. Talk about animals you see in the forest.

1

Introduce: Show a picture of the bear on slide 3 and ask them what would be the first thing they would need to do draw the bear. Then what would be the next and so on. Follow their instructions and draw the bear.

2

Model: Have them talk to a neighbor about how they would code a different sprite. Talk about how you get a sprite to go all the way around. Model how it takes 12 times to do a complete circle.

4

Model: Show the Sample Project. Pick one of the four sprites and model your thinking on how you know what to do first and how you would code the sprite. Keep the sample project on the board on loop while they are coding.

3

Code: Remind students how to get sprites, backgrounds and how to use the loop block. Then have them recreate the forest scene.

5

Debrief: What problems did you have and how did you solve them? Do the Debugging exercises on slides 14 and 15 as a class and discuss how to fix those problems.

6

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Sample Project

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A graphic that can be added to a program which can then be coded.

Sprite

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A list of steps to follow to complete a task.

Algorithm

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Loop

Doing something over and over again.

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Event

An action that causes something to happen.

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Debug

Finding and fixing mistakes or problems (bugs) in a program.

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Sample Code

Bird Across the Screen

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Sample Code

Bear Back and Forth

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Sample Code

Bunny Up and Down

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Sample Code

Squirrel to Spin

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What do I need to do to debug the bear to go back and forth?

Debugging the Bear

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How can I get my squirrel to go all the way around?

Debugging the Squirrel

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Coding Challenge

Add 4 Sprites that are the same as the finished project
Add the same Background
Code each sprite to do the same thing as the finished project.

Extended Challenge: Can you add your own sprite and code it by combining what 2 of the sprites in the project did?

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Activities/Extensions

Read The Little Mouse, The Red Ripe Strawberry, and THE BIG HUNGRY BEAR by Don and Audrey Wood

Have students code their own forest scene with a food that an animal might like. Example Project

Have students draw the bear by looking at the t hese instructions. They could create it on paper on on Scratch Jr.

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Standards

Computational Thinking (CT):

Standard 1.CT.1

Determine the steps needed to solve a problem and develop a sequence of instructions.

Algorithms and Programming (AP):

Standard 1.AP.2

Break down (deconstruct) algorithms and list the steps needed to solve a problem into a sequence of tasks and sub-tasks.

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Credits

Template by SlidesMania

https://howtodraweasy.net/how-to-draw-a-bear-for-kids/

Bear Came Along by Richard T Morris:

The Red Ripe Strawberry, and THE BIG HUNGRY BEAR by Don and Audrey Wood

Fonts used in this presentation: Roboto Slab.

Thank you!

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