Computer Pipes: Sending Safe Messages

Materials Needed

• Paper cups or small containers
• String, yarn, or a toy tunnel
• Index cards or paper
• Crayons or washable markers
• Small toy figures or blocks
• Two boxes labeled “SEND” and “GET”
• Optional: a tablet or computer used only with an adult

Learning Objectives

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

• Explain that a computer “pipe” can carry a message from one place to another.
• Send and receive a simple pretend message using a safe hands-on activity.
• Say that computer code should be used safely and only with a trusted grown-up.
• Recognize that a long computer message may be code, not a regular sentence for children to run.

Success Criteria

Success looks like this:

• “I can send a message.”
• “I can receive a message.”
• “I can tell a grown-up before I use computer code.”
• “I can keep pretend computer play safe.”

Introduction: Hook and Objectives

Ask: “Have you ever talked through a tube, sent a letter, or passed a toy to someone? How did it get from one place to another?”

Show two cups or boxes. Say:

“Today we will learn about a computer pipe. A computer pipe is like a pretend tunnel. It can carry a message from one place to another. We will use our own safe paper pipe!”

Explain in child-friendly language:

“Some computer messages are made for grown-ups who build and protect computers. We will not type or run mystery computer code. We will learn the safe idea behind it by playing a message game.”

Body

Part 1: I Do — The Teacher or Parent Demonstrates

Place the “SEND” box on one side of the room and the “GET” box on the other side. Put a toy or paper message in the SEND box.

Say:

“This box sends. This box gets. The message travels through our pretend pipe.”

Move the message through the tunnel, along the string, or from one cup to the other. Then place it in the GET box.

Model a simple message such as:

• “Hello!”
• “I like apples.”
• “The bear is ready.”

Think aloud:

“First, I make a message. Next, I send it. Then, someone receives it. I check that the message arrived.”

Quick Check

Ask:

• “Which box sends the message?”
• “Which box receives the message?”
• “What happens in the middle?”

Part 2: We Do — Play the Message Pipe Game

Work together to send messages. The adult may write or draw the message, while the child sends it.

1. Choose a toy or card to send.
2. Choose a safe message together.
3. Put the message in the SEND box.
4. Move it through the pretend pipe.
5. Take it out of the GET box.
6. Read or describe what arrived.

Use think-pair-share language, adapted for one child:

• Think: “What message should we send?”
• Tell: “Tell your grown-up your message.”
• Check: “Did the same message arrive?”

Movement Variation

Let the child pretend to be the message. The child walks from the SEND box to the GET box while holding a card. Say, “The message is traveling!” When the child arrives, ask, “Did you receive the message?”

Formative Assessment

Notice whether the child can:

• Identify sending and receiving.
• Follow the message in the correct order.
• Explain what happened using simple words.

Part 3: Safe Computer Connection

Show a card with a simple drawing of a computer, a pipe, and two message boxes. Avoid entering or running unfamiliar code.

Say:

“Computers can send messages too. Some computer messages look like strange letters and numbers. We do not press buttons or run code we do not understand. We ask a trusted grown-up first.”

Teach the safety rule:

“Stop, close, and ask.”

• Stop: Do not click or type more.
• Close: Move away from the screen if something looks strange.
• Ask: Tell a trusted grown-up.

Practice saying the rule together with hand motions:

• Hands up for “Stop.”
• Hands together for “Close.”
• Point to the grown-up for “Ask.”

Part 4: You Do — Create a Safe Message Pipe

Invite the child to choose one activity:

• Draw a message: Draw a star, pet, snack, or favorite toy and send it through the pipe.
• Build a pipe: Use blocks to make a tunnel between two boxes.
• Act it out: Pretend to be a message traveling from one room to another.
• Make a message card: Draw arrows showing “SEND” and “GET.”

Give clear directions:

1. Choose what your message will say or show.
2. Put it in the SEND box.
3. Move it through the pipe.
4. Place it in the GET box.
5. Explain what happened.

Creative Challenge

Ask: “Can you make the message travel in a new way? Can it go through a tunnel, over a bridge, or around a block?”

Feedback

Give specific feedback:

• “You remembered to send the message first.”
• “You checked that the message arrived.”
• “You used safe computer words: stop, close, and ask.”

Real-World Connection

Explain:

“When you talk to someone, your voice carries a message. When you send a card, the mail carries a message. When computers work together, computer pipes can carry messages too. People who use computers must make sure the messages are safe.”

Conclusion: Closure and Recap

Ask the child to complete these sentences:

• “A pipe can carry a ______.”
• “The box that sends is the ______ box.”
• “The box that gets the message is the ______ box.”
• “If I see strange computer code, I ______, ______, and ______.”

Review the main idea:

“Today we learned that a computer pipe can carry a message. We practiced sending and receiving pretend messages. We also learned to stop, close, and ask before using unfamiliar computer code.”

Summative Assessment

Ask the child to demonstrate the full process:

1. Create or choose a safe pretend message.
2. Send it through the pipe.
3. Receive it at the other end.
4. Explain what happened.
5. State the computer safety rule: “Stop, close, and ask.”

Differentiation and Adaptations

For a Child Who Needs More Support

• Use only one toy and two boxes.
• Give two choices, such as “Send the bear or the block?”
• Use picture cards for “send,” “travel,” and “get.”
• Model each step before asking the child to try.
• Allow pointing, gestures, or drawing instead of speaking.

For a Child Ready for More Challenge

• Create two messages and decide which one should travel first.
• Add a “message checker” who confirms that the message arrived correctly.
• Build a longer pipe with turns and obstacles.
• Explain why asking a grown-up before using unfamiliar computer code is important.
• Sort cards into “safe to ask about” and “ask a grown-up first.”

Flexible Learning Formats

• Homeschool: Use rooms, boxes, and household objects.
• Classroom: Let children work in pairs as senders and receivers.
• Online or digital: Use drawings and pretend messages without running unfamiliar code.
• Training context: Replace toy messages with simple workplace examples such as “send,” “receive,” and “check.”

Optional Follow-Up Activity

During the day, look for examples of messages traveling: a person talking, a letter being delivered, a button turning on a toy, or a picture being sent to a family member. Ask, “What is the message, and how did it travel?”