Lesson 3 - Coding Blossom¶

At a glance

Summary: In the third lesson, students learn the basics of coding by creating a simple guessing game in Scratch.
Duration: 90 min
Robot use: building

Download resources¶

This lesson has no worksheets.

Download the Scratch starter project: Lesson 3 - Coding Blossom (Scratch Project)
Open Scratch at www.scratch.mit.edu
Click: File → Load from your computer
Select the downloaded file.

You should not need the image files as they are already included in the Scratch project, but here they are if needed: Blossom sprites (ZIP)

Lesson 2 Recap - 5 min
What is coding – 10 min
- 2.1 Introduction
- 2.2 Play the guessing game with friends
Code the game in Scratch – 40 min
- 3.1 If-else statements
- 3.2 Loops
- 3.3 Create your own blocks
- 3.4 Code the game
Building Blossom’s base - 25 min
Why coding discussion - optional
Survey - 5 min
Summary - 5 min

After this lesson, students will be able to

explain what coding is and why/where it is important to know,
design algorithms involving multiple alternatives (branching) and iteration,
implement algorithms using visual programming, involving control structures (such as “if/then”).

I can explain what coding is and why it is important.
I can design an algorithm with different outcomes and repeated steps.
I can use IF statements to control what happens in my program.
I can use loops to repeat actions in my code.
I can create and use my own custom blocks with meaningful names.
I can use variables to store information (like a random number) in Scratch.
I can explain how robots use sensors, code, and motors to respond to their environment.
I can describe how computers use binary (0s and 1s) to communicate information.