🕵️‍♀️ The Safe Computer Detective: Commands, Clues, and “Stop!”

Materials Needed

• Paper and crayons or washable markers
• Toy blocks or counting cubes
• Three paper signs: GO, STOP, and ASK
• Optional: a toy keyboard, tablet, or computer used with an adult
• Optional: small stickers for encouragement

Learning Objectives

By the end of the lesson, the child will be able to:

• Explain that a computer follows instructions called commands.
• Put three simple commands in the correct order.
• Identify safe choices: stop, ask an adult, and do not click unknown things.
• Show understanding by creating and acting out a safe command sequence.

Success Criteria

I can:

• Say, “A command tells a computer what to do.”
• Follow or arrange three steps in order.
• Point to STOP or ASK when something is unfamiliar.
• Make a safe pretend computer instruction.

Introduction: Hook and Objectives — 5 Minutes

Say: “Imagine a tiny robot wakes up and says, ‘What should I do?’ Can you give it safe instructions?”

Show the three signs: GO, STOP, and ASK. Explain:

• GO: “This is something safe that we know.”
• STOP: “Do not continue if something seems wrong.”
• ASK: “Ask a trusted grown-up before using something new or unknown.”

Tell the child: “Today we will learn how computers follow commands and how computer detectives make safe choices.”

Body: Learning and Practice

Part 1 — I Do: What Is a Command? — 5 Minutes

Use blocks to model a simple sequence:

1. Pick up a red block.
2. Put it on a blue block.
3. Clap two times.

Say: “A command is an instruction. It tells a person, robot, or computer what to do. Computers need instructions in the right order.”

Act out the steps slowly. Then deliberately put the red block beside the blue block instead of on top.

Ask: “Did the command work the way we wanted? What could we do next?”

Guide the child to answer: “Stop, fix it, or ask for help.”

Part 2 — We Do: Command Dance — 8 Minutes

Invite the child to help choose three actions from this list:

• Touch your nose.
• Jump one time.
• Turn around.
• Tap your knees.
• Take one careful step.

Write or draw the three actions on separate pieces of paper. Mix them up. Work together to put them in order.

Say: “Let’s read our commands from top to bottom. First, we ____. Next, we ____. Last, we ____.”

Act out the sequence together.

Quick Check:

• “What do we do first?”
• “What happens next?”
• “What should we do if a command is confusing?”

Expected response: “Stop and ask a trusted grown-up.”

Part 3 — We Do: Safe or Ask? — 8 Minutes

Read each situation aloud. The child holds up or points to GO, STOP, or ASK.

1. “You press the button on your toy after your grown-up says it is okay.” GO
2. “A strange message appears on the screen.” STOP and ASK
3. “A website asks for your name, and your grown-up is not there.” STOP and ASK
4. “Your trusted grown-up shows you a drawing game.” GO
5. “You see a button you do not recognize.” STOP and ASK

Repeat together: “If I do not know it, I do not click it. I stop and ask.”

Part 4 — You Do: Make a Safe Robot — 10 Minutes

Invite the child to pretend to be a robot or design a robot on paper.

The child creates three safe commands. Examples:

1. “Walk to the block.”
2. “Pick up the block.”
3. “Put it in the box.”

The child may choose one of these options:

• Movement option: Give commands to a grown-up robot.
• Building option: Use blocks to build something by following steps.
• Drawing option: Draw a robot and add three picture commands.
• Digital option: With an adult, use a child-friendly coding activity that uses large direction buttons.

Ask the child to explain the commands:

• “What does your first command say?”
• “What comes next?”
• “What would your robot do if it saw something strange?”

Formative Assessment and Feedback

During the lesson, observe whether the child can:

• Follow a three-step sequence.
• Use the word command or explain that a command gives an instruction.
• Identify when to stop and ask an adult.
• Correct a mixed-up or incorrect step.

Give specific feedback:

• “You remembered the first step and then checked the next step.”
• “You made a safe choice by stopping when the message was unfamiliar.”
• “You put the commands in the right order. That helped the robot know what to do.”

Summative Assessment: The Safe Command Challenge — 5 Minutes

Ask the child to complete these tasks:

1. Explain what a command does.
2. Arrange three picture commands in order.
3. Act out or demonstrate the commands.
4. Answer: “What do you do if a computer shows something you do not know?”

Mastery goal: The child completes at least three of the four tasks with little or no help.

Conclusion: Recap and Reflection — 5 Minutes

Ask the child to finish these sentences:

• “A command tells a computer to ____.”
• “Commands need to be in the right ____.”
• “If I see something strange, I ____ and ____.”

Expected ideas: do something, order, stop, and ask a trusted grown-up.

Final chant:

“Think before I click. Stop if I am unsure. Ask a trusted grown-up. Safe choices help me learn!”

Differentiation

For a Child Who Needs More Support

• Use only two commands at first.
• Use pictures and gestures instead of written words.
• Repeat the same safe-choice situations.
• Let the child copy the adult’s actions before giving independent commands.

For a Child Ready for More Challenge

• Create a sequence with four or five commands.
• Add a “repeat” command, such as “clap three times.”
• Ask the child to find and fix one mistake in a command sequence.
• Have the child design a simple paper maze and give directions through it.

Home and Real-World Connection

During everyday technology use, practice saying:

“I know this.” “I do not know this.” “I will stop and ask.”

Remind the child that safe computer use means:

• Only using devices with a trusted grown-up’s permission.
• Not clicking unfamiliar buttons, links, or messages.
• Never sharing private information without asking a trusted grown-up.
• Stopping immediately when something feels confusing or unsafe.