Unplugged Lesson
Beginner
40 mins
Teacher/Student led
+50 XP
What you need:
IWB/Projector/Large Screen

Digital Robot

Get ready to meet a robot on your screen that follows your commands to draw amazing patterns! You'll learn to give clear instructions, using direction buttons to create shapes step by step, and see your code come to life.
Learning Goals Learning Outcomes Teacher Notes

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    1 - Introduction

    So far, we've been the robots ourselves, following instructions to make patterns and draw pictures. We learned that to get the right result, the sequencing and order of our code has to be perfect.

    Today, we're going to meet a robot that lives on a screen. This robot can follow all the same commands we used to draw, and it will show us just how good it is at following our code.

    Materials Needed:

    • A Screen/Projector: To display the simple web application.

    • Worksheets: Have a few of the "Drawing Robot" worksheets on hand to reference.

    • Markers: To draw a few example shapes before going to the screen.

    2 - Paintbrush Path

    Introduce the Paintbrush Path—it’s just like last lesson’s Bee game, but this time the paintbrush leaves a trail.

    Pupils will direct the brush with clear commands  to copy the target image shown in the game. Do a quick demo: point to the start, read one command at a time, and show how the brush draws a line after each move.

    Then let the class suggest the next single command to build the picture step by step. This warm-up tunes their direction and sequencing skills for the rest of today’s lesson.

    3 - Join the Dots

    Tell the students you are going to code the digital robot to draw a simple square, just like they did with their markers.

    Click the buttons in the correct sequence (➡️, ⬇️, ⬅️, ⬆️).

    As you click, the code will appear on the screen, building the sequence.

    Once you are done, press the "Draw" button. The digital robot will then "magically" draw the square on the screen.

    This is the "aha!" moment where they see their unplugged work translated to the digital world.

    Join the Dots — 4×4

    Starts at the top-left. Click a different dot to change the start. Add arrows, then press Run.
    Queue is empty — add some arrows.
    Start is top-left (row 1, col 1). Add arrows to draw.

    4 - Square and Rectangle

    Give each student a worksheet. Tell them it's their turn to be the programmer.

    Challenge them to write the code to draw a simple square and then a rectangle (There are more complex challenges for more advanced students below)

    When they have completed the code, they can enter it into our online drawing robot to see if it works!

  • Warm-up square: From the top-left start, draw a 2×2 square.

  • Rectangle: From top-left, draw a 3 wide × 2 tall rectangle.

  • Staircase: Make three steps going right, down, right, down.

  • Perimeter walk: Trace the outer border of the whole 4×4 grid and return to start.

  • Letter L: Draw a tall line down the left edge, then right along the bottom.

  • Letter T: Draw a long line right across the top row, then from the middle go down to row 3.

  • Window panes: Draw two small 2×2 squares, one in the top-left, one in the top-right.

  • Zigzag: Cross the grid with a zigzag (right, down, right, up, right, down, right…).

  • Join the Dots — 4×4

    Starts at the top-left. Click a different dot to change the start. Add arrows, then press Run.
    Queue is empty — add some arrows.
    Start is top-left (row 1, col 1). Add arrows to draw.

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