Projectiles Part 1

Summary

Materials

• Day 16 PowerPoint deck
• Projectiles Activities
• Projectiles Activities in Word
• Flying Bird Program (for teacher)
• Flying Bird with Score Program (for teacher)

Instructional Activities and Classroom Assessments

1. Loops Review (5 minutes)
2. Introduction to Projectiles (10 minutes)
3. Projectiles Activities (35 minutes)
4. Reflection/Homework

Learning Objectives

• AAP-2.K For iteration:
  • a. Write iteration statements. 2.B
  • b. Determine the result or side effect of iteration statements. 4.B

Essential Knowledge

• AAP-2.K.1 Iteration statements change the sequential flow of control by repeating a set of statements zero or more times, ntil a stopping condition is met.
• AAP-2.K.2 The exam reference sheet provides:

Text:
REPEAT n TIMES
{
 <block of statements>
}
Block:
REPEAT n TIMES
block of statements in which the block of statements is executed n times.

• AAP-2.K.3 The exam reference sheet provides:

Text:
REPEAT UNTIL(condition)
{ 
 <block of statements> 
} 
Block: 
REPEAT UNTIL 
block of statements condition in which the code in block of statements is repeated until the Boolean expression condition evaluates to true.  

Details

1. Loops review (5 minutes)

• Discuss the answers to the following questions:
  • What are loops?
  • What are the different types of loops in MakeCode and how is each one used?
  • How can using loops making your code better?

2. Introduction to projectiles (10 minutes)

• Review sprites.
• Remind students of our use of Projectiles in the Galga game.
• Define and discuss the qualities of projectiles.
• Direct students to the Projectiles Activities page and guide them through Section A of the page (i.e., the Flying Bird activity).
• Discuss what happens when they change the numbers for vx and vy.
• Discuss what happens when they change vx or vy to a negative number.
• Demonstrate the concept that projectiles are automatically destroyed when they leave the visible screen:
  • Students will add code that changes the score when the projectile is destroyed.
  • Students will observe when the score changes.

3. Projectiles activities (35 minutes)

• Direct students to the Projectiles Activities page.
• Task them with completing Section B of the page.

4. Reflection/Homework

If you run out of time, you may also assign this as individual homework Students should complete their reflection.

• How did using a loop in Task 2b help reduce the amount of blocks that were used?
• What are the benefits of using projectiles rather than normal sprites?