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Instructional Days: 5
Topic Description: This lesson describes the methods of moving Sprites in Scratch.
Objectives:
The students will be able to:
Explain the 3 major ways to move sprites.
Choose the appropriate method of moving to make a cat circle the bases.
Outline of the Lesson:
Journal Entry (5 minutes)
moving.sb (20 minutes)
Discussion of answers to questions (15 minutes)
baseball.sb (70 minutes)
Student Activities:
Complete journal entry.
Examine moving.sb.
Discuss answers to questions.
Complete baseball.sb.
Students will do the following:
Create a moving program: https://scratch.mit.edu/projects/47183406/
Create a baseball program: https://scratch.mit.edu/projects/33689950/
1. Journal Entry: Briefly describe how you would graph in your Algebra class (The x-y coordinate plane, etc)
o Have students work individually and then share with their elbow partners.
2. moving.sb ()
(use this link as an example: https://scratch.mit.edu/projects/47183406/ then click the see inside button)
o Circulate the room and help students answer the questions.
Discussion of answers to questions
o Emphasize that the “repeat” block will do whatever is inside it n times. This behavior can be called
iteration or looping.
o Point out that iteration is a construct that is used in other programming languages.
o Emphasize the differences between the 3 ways to move.
o Emphasize how the sprites will reinitialize themselves when the green flag is clicked.
3. baseball.sb
(use this link as an example: https://scratch.mit.edu/projects/33689950/ then click the see inside button)
o Circulate the room and help students finish baseball.sb.
o After a student can get the cat around the bases, encourage them to use the “point in direction” block
to get the cat to turn the correct way when running.
o If students need a hint for the extra credit, show them the “next costume” and “switch to costume“
blocks under the “Looks” tab.
Resources:
Moving Project
Moving Project Solutions
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