Computer Science Grade 1 20 min

Turning Rusty Left and Right

Introduce instructions to turn Rusty left and right.

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1

Introduction & Learning Objectives

Learning Objectives Identify their own left and right. Give a 'Turn Left' command. Give a 'Turn Right' command. Create a short sequence of two turning commands. Follow a simple path with left and right turns. Find a mistake in a simple turning algorithm. Have you ever played 'Simon Says'? 🥳 Let's play with our robot friend, Rusty! Today, we will learn how to give Rusty instructions. We will teach him 'Turn Left' and 'Turn Right'. This helps Rusty move around and find his toys! 🧸 Real-World Applications Playing a video game to move a character 🎮 Following a map to find treasure 🗺️ Giving a friend directions to your house 🏠 Programming a toy robot to dance 🕺
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Key Concepts & Vocabulary

TermDefinitionExample AlgorithmA list of steps to finish a task. Like a recipe for making a sandwich! 🥪1. Get bread. 2. Add cheese. 3. Eat! CommandOne single instruction for our robot. It's one step in the algorithm.A single command is 'Turn Left'. ⬅️ SequencePutting commands in the right order. First this, then that!First 'Turn Left', then 'Turn Right' is a sequence. RobotA machine that follows our commands. Our robot friend is named Rusty! 🤖A toy car that you can control is a robot. Turn LeftTurning your body towards your left hand. The hand that makes an 'L'.If the apple 🍎 is on your left, you 'Turn Left' to face it. Turn RightTurning your body towards your right hand. Your other hand!If the puppy 🐶 is on your right, you '...
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Core Syntax & Patterns

One Step at a Time Give Rusty only one command at a time. Robots get confused with too many instructions. Say 'Turn Left', then wait. Order is Important! Commands must be in the correct order. Turning left then right is different from turning right then left. Be Super Clear Use exact words like 'Turn Left' or 'Turn Right'. Rusty doesn't understand 'turn that way'. He needs clear commands.

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Sample Practice Questions

Challenging
Rusty starts by facing the sun ☀️. His algorithm is: 1. Turn Right. 2. Move Forward. 3. Turn Right. 4. Move Forward. Which way is Rusty facing at the end?
A.Facing the sun ☀️
B.Facing away from the sun ☀️
C.To the left of where he started
D.To the right of where he started
Challenging
Rusty is in a maze. He starts at 🏁 and must get to the ⭐. Path: Forward, Right, Forward, Left, Forward. What is the first TURN command in the correct algorithm?
A.Turn Right
B.Turn Left
C.Turn Around
D.No turns are needed
Challenging
Rusty has a new rule: 'IF there is a wall on your right, THEN Turn Left. ELSE, Turn Right.' Rusty sees a wall on his right. What does he do?
A.Turn Right
B.Move Forward
C.Turn Left
D.Stop

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