Introduction to Vehicle… · SHS2 Applied Technology

Lesson notes

Learning Objectives

Indicator: 2.1.2.LI.2 - Describe the main components of the steering system and explain steering geometry and the angles involved.

By the end of the lesson, learners can:

Identify and name at least six main components of a vehicle steering system from a sketch, chart, or real vehicle, and state the function of each component.
Trace the path of steering effort from the steering wheel to the road wheels, explaining how rotary motion is converted into linear motion.
Define steering geometry and list the five principal angles involved (caster, camber, toe-in, toe-out, and kingpin inclination).
Explain, with the aid of a simple sketch, the purpose and effect of each steering angle on vehicle handling, tyre wear, and steering stability.
Describe the wheel alignment process and explain why correct steering geometry reduces tyre wear and improves fuel efficiency and safety.

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Curriculum details

Strand: Automotive Technology (Strand 1)
Sub-strand: Introduction to Vehicle Technology (1.2)
Content standard: 2.1.2.CS.1 - 2.1.2.CS.1 Demonstrate knowledge and understanding of vehicle steering and suspension systems 2.1.2.LO.1 Perform steering and suspension system inspection, maintenance, diagnosis and repairs with limited supervision
Indicator: 2.1.2.LI.2 - Describe the main components of the steering system and explain steering geometry and the angles involved.
Suggested placement: Semester 1, Week 4 (Week 4 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. 74

Exemplars (from the NaCCA curriculum)

Group work/collaborative learning:
- In groups using relevant sketches or real objects assist learners to identify the main component parts of the steering system on a vehicle and discuss how the steering system operates.
- Learners also brainstorm various steering geometry and the various angles involved in vehicle steering systems Experiential learning : Learners visit a local repair workshop and observe critically and come out with the various steering geometry, various angles involved and wheel alignment process

Assessment (2.1.2.AS.2). The document marks these depth-of-knowledge levels for this indicator: Level 2 Skills of conceptual understanding; Level 3 Strategic reasoning; Level 4 Extended critical thinking and reasoning.

Teaching and Learning Materials:
- Chart or real object
- Sketches
- Vi deo/YouTube
- I ndustrial visit