Projectiles Part 2

Summary

Materials

• Day 17 PowerPoint deck
• Projectiles from Sprites Activities
• Projectiles from Sprite Activities in Word
• Projectiles from Sprites Tutorials

Instructional Activities and Classroom Assessments

1. Projectiles Review (5 minutes)
2. Projectiles from Sprites Activities (15 minutes)
3. Revise Sprite Stories (30 minutes)

Learning Objectives

• CRD-2.A Describe the purpose of a computing innovation. Computational Thinking Practices. Skills 1.A
• CRD-2.B Explain how a program or code segment functions Computational Thinking Practices. Skills 4.A
• CRD-2.C Identify input(s) to a program. 3.A
• CRD-2.E Develop a program using a development process. 1.B
• CRD-2.G Describe the purpose of a code segment or program by writing documentation. Computational Thinking Practices. Skills 4.A
• CRD-2.I For errors in an algorithm or program:
  • a. Identify the error.
  • b. Correct the error.
  • Computational Thinking Practices. Skills 4.C
• AAP-1.A Represent a value with a variable. 3.A
• AAP-2.K For iteration:
  • a. Write iteration statements 2.B
  • b. Determine the result or side effect of iteration statements. 4.B
• AAP-3.B Explain how the use of procedural abstraction manages complexity in a program. 3.C
• AAP-3.E For generating random values:
  • a. Write expressions to generate possible values. 2.B
  • b. Evaluate expressions to determine the possible results 4.B

Essential Knowledge

• CRD-2.A.1 The purpose of computing innovations is to solve problems or to pursue interests through creative expression.
• CRD-1.A.2 Acomputing innovation can be physical (e.g., self-driving car), nonphysical computing software (e.g., picture editing software), or a nonphysical computing concept (e.g., e-commerce).
• CRD-2.A.1 The purpose of computing innovations is to solve problems or to pursue interests through creative expression.
• CRD-2.B.1 A program is a collection of program statements that performs a specific task when run by a computer. A program is often referred to as software.
• CRD-2.B.2 A code segment is a collection of program statements that is part of a program.
• AAP-1.A.1 A variable is an abstraction inside a program that can hold a value. Each variable has associated data storage that represents one value at a time, but that value can be a list or other collection that in turn contains multiple values.
• AAP-1.A.2 Using meaningful variable names helps with the readability of program code and understanding of what values are represented by the variables.
• 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.  

• AAP-2.K.1 Iteration statements change the sequential flow of control by repeating a set of statements zero or more times, until a stopping condition is met.

Details

1. Projectiles review (5 minutes)

• What are projectiles?
• How are projectile sprites different that player sprites?
• What can projectiles be used for?
• What are the benefits of using projectiles rather than regular sprites?

2. Projectiles from Sprites Activities (15 minutes)

• Direct students to the Projectiles from Sprites Activities page.
• Instruct students to complete Section A of the page; students will:
  • Complete Tasks 1 and 2 on the Projectiles from Sprites tutorial page.
  • Respond to the reflection questions.

3. Revise Sprite Stories (30 minutes)

• Task students with going back to their second Sprite Story (with animation) and using projectiles to revise it.
• Students should:
  • Consider where in the story projectiles could further the story line or add an interesting element to the story.
  • Add at least two projectiles that incorporate movement to make it more interesting.
• Remind students to share their work and copy the link to the Section B of the Projectiles from Sprites Activities page.