Sequencing & Scripts

Summary

This chapter teaches how individual blocks snap together into ordered scripts and how program flow moves top-to-bottom through a stack of blocks. Students learn how a script starts, executes, and stops, and how multiple scripts on the same stage can run together and coordinate. It builds directly on the editor knowledge from Chapter 2 and the problem-solving vocabulary from Chapter 1. After completing this chapter, students will be able to build, read, and run simple multi-block scripts in Scratch.

Concepts Covered

This chapter covers the following 14 concepts from the learning graph:

Concept	Concept Impact Score
Script	126
Sequencing	75
Program Flow	1
Block Snapping	6
Stack Of Blocks	5
Order Of Operations	9
Starting A Script	5
Script Execution	4
Top-Down Reading	2
Single Script	4
Multiple Scripts	3
Script Coordination	2
Running A Script	3
Stopping A Script	2

Prerequisites

This chapter builds on concepts from:

• Chapter 1: Computational Thinking Foundations
• Chapter 2: The Scratch Interface & Environment

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