Lesson Objectives

By the end of this lesson, teachers will be able to:

  1. Explain what robotics is and how it relates to the CAPS Coding and Robotics curriculum.

  2. Describe the basic components of a robot, including inputs, outputs, sensors, and controllers.

  3. Identify examples of robotics in everyday life and link them to classroom learning.

  4. Understand how robotics can be taught in schools with or without actual robots, using low-tech alternatives.

1. What Is Robotics?.

Robotics is the study and design of machines that can sense their environment, make decisions, and perform actions. In the school context, robotics helps learners understand how technology works and introduces them to engineering, problem-solving, and teamwork.

In the CAPS curriculum, robotics forms a key strand across the phases. It introduces learners to:

  • simple mechanical systems,

  • basic electronics,

  • computational thinking, and

  • programmable behaviors.

Teaching robotics does not require expensive kits. The goal is to help learners understand the concepts — the technology can come later.

2. The Basic Components of a Robot

Robots are built from a few essential parts that even young learners can understand:

A. Inputs

Inputs are how a robot receives information.
Examples:

  • Buttons

  • Sensors (light sensor, sound sensor, motion sensor)

  • Touchpads

Inputs allow the robot to detect changes in the environment.

B. Processing (the Controller)

The controller is the “brain” of the robot.
It takes information from inputs and decides what to do.

Examples:

  • Micro:bit

  • Arduino

  • Coding blocks in Scratch/Scratch for Micro:bit

  • Robot’s onboard computer

This is where coding connects to the robot’s behavior.

C. Outputs

Outputs are what the robot does.

Examples:

  • Lights turning on

  • Motors moving wheels or arms

  • Sounds or beeps

  • Screens displaying messages

Outputs help learners see how coding instructions translate into real actions.

3. Robotics in Everyday Life

Learners already interact with robotics daily — making the topic easy to introduce.

Examples include:

  • Automatic doors

  • Dishwashers

  • Traffic lights

  • Washing machines

  • Drones

  • Elevators

  • Self-checkout counters

  • Smartwatches and fitness trackers

Connecting robotics to familiar objects helps learners understand that robots are not only “humanoid machines” but everyday tools designed to solve problems.

4. Teaching Robotics With or Without Hardware

Robotics education can be effective even in low-resource classrooms.

A. Low-Tech / No-Tech Options:

  • Use cardboard wheels, bottle caps, straws, and syringes to build simple mechanisms.

  • Demonstrate “inputs and outputs” using human bodies (e.g., clapping → student “robot” moves).

  • Use VEXcode VR or Micro:bit simulator for virtual robots.

  • Build prototypes from recycled materials.

B. If Robots Are Available:

Use kits like:

  • LEGO WeDo / LEGO Spike

  • Micro:bit robots

  • mBots

  • Arduino-based kits

Learners can code simple programs to control movement, lights, and sensors.

5. Why Robotics Matters in CAPS

Robotics supports CAPS goals by helping learners:

  • Understand how technology works at a basic level

  • Build confidence in engineering and problem-solving

  • Strengthen computational thinking (cause–effect, sequencing, debugging)

  • Prepare for future STEM and digital careers

  • Work collaboratively on design challenges

  • Apply creativity to build and test solutions

Robotics also supports integrated learning because it uses science, maths, creativity, and coding all together in real-world problem solving.

Reflection

Think of one robotic device you use in your daily life.

  • What inputs does it receive?

  • How does it process information?

  • What outputs does it produce?

  • How could you use this example to introduce robotics to learners?.

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