Beginner: Algorithms & Coding

Basic features and user interface of the Coding Application. 

The following Concepts for Algorithms and Coding are introduced: 

Part 1: Introduction to text variables 

• Creating a text variable 

• Naming a text variable 

• Deleting a text variable 

• Store user input into a text variable. 

Part 2: Introductions of the following blocks: 

o Join 

o Ask 

• Output the value of a text variable. 

Expected outcomes 

• Learners create a program with 2 text variables capturing Name 

and Surname and display the variables in text bubble using a 

character. 

Objective:

By the end of this lesson, students will be able to:
Understand what event triggers are in Scratch.
Identify key event blocks used in Scratch 3.0.
Apply event blocks to create interactive projects.
Use event triggers to control sprites and animation

New Concepts Introduced

1️⃣ Operators - Addition & Subtraction

• Used to do math in coding!

2️⃣ New Operator Blocks:

• Add (+): Combines two numbers (e.g., 5 + 3 = 8).
• Subtract (-): Finds the difference between two numbers (e.g., 10 - 4 = 6).

Lesson Description: Introduction to Multiply and Divide Operators in Scratch

In this lesson, students will learn how to use multiply and divide operators in Scratch to perform mathematical operations. These new skills will allow them to build more complex programs that involve basic arithmetic.

Key Concepts Covered:

• Multiply Operator (×): Helps multiply two numbers together.
• Divide Operator (÷): Helps divide one number by another.
• Using Variables: Students will use both number and text variables to store and process user inputs.
• Operators in Action: Using the Multiply and Divide blocks to calculate results based on user input.

Learning Objectives:

• Students will learn how to create and use number variables to store data.
• Students will learn how to perform multiplication and division using the Multiply and Divide blocks in Scratch.
• Students will build a program that asks the user for two numbers, multiplies or divides them, and displays the result.

Examples Used in Class:

• Multiplying Numbers: Multiply two numbers to get the result (e.g., 3 × 5 = 15).
• Dividing Numbers: Divide two numbers to find the quotient (e.g., 10 ÷ 2 = 5).
• Students will use text and number variables in combination with the operators to calculate and display results.

Learning Outcomes:

• Greater Than and Less Than operators will help students compare two numbers.
• If Then blocks will help students make decisions based on those comparisons.
• Students will be able to create programs that find the largest or smallest number based on user input.

In this lesson, we will explore If Then blocks, Go to (x,y), and introduce a new block called Touching. These blocks will help control characters' movements, respond to user actions, and create interactive games in Scratch

Lesson Objectives:

By the end of this lesson, learners should be able to:
Use the Repeat block to run a program multiple times.

Objective:

Students will learn how to:
Use operators (>, <, +, -, *) to compare and manipulate values.
Implement If Then conditions to make decisions in their programs.
Use repeat loops to perform tasks multiple times.
Apply event triggers to start and control their programs.

Brief Summary:

In this lesson, students explored fundamental coding concepts using Scratch:

1. Operators & Conditions: Compared two numbers to find the biggest or smallest.
2. Loops (Repeat Block): Asked the user for inputs multiple times.
3. Event Triggers: Used keypresses and interactions to start actions.
4. Basic Math Operations: Allowed users to perform addition, subtraction, and multiplication using input values.

By combining these concepts, students can create interactive programs, such as simple calculators and games

Objective:

By the end of this lesson, students will:

• Program a mouse sprite to move randomly.
• Use event triggers to move a cat sprite using the keyboard.
• Implement if-then conditions to check for collisions.
• Create a score counter to track the number of times the cat catches the mouse.