Robotics · JHS2 Computing

Lesson notes

Learning Objectives

Indicator: B8.4.3.1.1 - Describe the principles underlying the operation of the components of a robot (Controller Mechanical, Sensors)

By the end of the lesson, learners can:

Explain the role of the controller as the “brain” of the robot and how it runs on a computer programme.
Identify and describe mechanical parts (actuators) such as motors, pistons, grippers, wheels and gears, and state what each part helps the robot do.
Describe how at least five different sensors (light, temperature, motion, moisture, pressure) input data into a computer system.
Match real-life scenarios in Ghana to the appropriate sensor and explain how the sensor is used in that situation.
Explain, in a clear and ordered manner, how the three components (controller, mechanical parts, sensors) work together for a robot to perform a task.

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Curriculum details

Strand: Computational Thinking (Strand 4)
Sub-strand: Robotics (4.3)
Content standard: B8.4.3.1 - Discuss Robot Intelligence Concepts
Indicator: B8.4.3.1.1 - Describe the principles underlying the operation of the components of a robot (Controller Mechanical, Sensors)
Suggested placement: Term 3, Week 11 (Week 35 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: Computing, Common Core Programme (JHS1-JHS3), 2023, p. 38
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

1. Explain the controller as the "brain" of the robot.
2. Demonstrate understanding of mechanical parts such as motors, pistons, grippers, wheels and gears that make the robot move, grab, turn around or lift (Actuators).
3. Watch video/pictures of the various parts of the robot.
4. Describe how a range of sensors can be used to input data into a computer system, including light, temperature, magnetic field, gas, pressure, moisture, humidity, pH and motion
5. Describe how these sensors are used in real-life scenarios, for example: street lights, security devices, pollution control, games, and household and industrial applications
NB: Sensors are used to estimate a robot's condition and environment. The controller is run by a computer programme