Robot Control Principles · SHS3 Robotics

Lesson notes

Learning Objectives

Indicator: 3.1.2.LI.3 - Go through a series of iterations to fix the identified flaws or improve the robot’s performance.

By the end of the lesson, learners can:

Create a structured test plan that isolates sub-modules of a faulty robot for individual testing.
Diagnose a non-functional robot by comparing what it is supposed to do with what it actually does.
Apply at least two successive iterations of fault detection and correction to improve a robot’s performance, documenting changes made at each stage.
Integrate all corrected sub-modules and test the complete robot to verify holistic functionality.
Evaluate their own problem-solving process and justify why each fix resolved the identified fault.

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Curriculum details

Strand: Principles of Robotic Systems (Strand 1)
Sub-strand: Robot Control Principles (1.2)
Content standard: 3.1.2.CS.3 - 3.1.2.CS.3 Demonstrate practical skills in evaluating and improving existing robotic systems. 3.1.2.LO.3 Create test plans for testing robotic systems to uncover faults and go through an iterative fault detection and correction process to fix the defect.
Indicator: 3.1.2.LI.3 - Go through a series of iterations to fix the identified flaws or improve the robot's performance.
Suggested placement: Semester 1, Week 20 (Week 20 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: NaCCA curriculum document, p. 152

Exemplars (from the NaCCA curriculum)

Project-Based Learning: For a given non-functional attempted solution to a problem, learners observe the solution and fix errors. The following steps can be adopted: Discuss and brainstorm on the following questions: a. What is the robot supposed to do? b. What does it actually do? c. Are the identified errors likely algorithmic, designs or programming flaws? d. Have you encountered these types of problems before? If yes, how did you fix it? e. Where and why do you think the errors occurred?

Iteratively modularise the solution and test each sub-module until all the errors have been tracked and fixed.

Integrate and test the whole robot to see if the holistic system works.

Assessment (3.1.2.AS.3). The document marks these depth-of-knowledge levels for this indicator: Level 4 Extended critical thinking and reasoning.

Teaching and Learning Resources:
- Mechanical gauges
- Multimeter
- Oscilloscopes
- Function generators
- Videos on robotic systems
- Real object presentation
- Problem narratives
- Flipcharts
- Non-functional robot
- Problem and solution narratives
- Testing tools(E.g., multimeters, Oscilloscope, mechanical gauges, etc.)
- 3D printers
- Computer-aided design (CAD) tools
- Access to robotics lab with requisite tools (e.g., screwdrivers, glue guns, pliers, multimeters, etc).