Lesson 4

Collect your items

In this lesson, students detect interactions between sprites using sensing commands, and use loops to remove clones as they are collected. Students are then introduced to variables as a way to track values in a program. Finally, they create a variable to track a score.

school
Grade 4
local_library
Subject Math
schedule
Length of lesson 50 minutes

Learning objective

Students will change the value of a variable based on a condition.

Standards

CSTA Standards

  • 1B-AP-09: Create programs that use variables to store and modify data.
  • 1B-AP-10: Create programs that include sequences, events, loops, and conditionals
  • 1B-AP-11: Decompose (break down) problems into smaller, manageable subproblems to facilitate the program development process.

Common Core Standards

  • CCSS.MATH.CONTENT.4.OA.A.1: Interpret a multiplication equation as a comparison, e.g., interpret 35 = 5 × 7 as a statement that 35 is 5 times as many as 7 and 7 times as many as 5. Represent verbal statements of multiplicative comparisons as multiplication equations.

Lesson contents

Scratch projects

Digit dash

Student resource

Multi-lesson project

Students will use the same project across multiple lessons