SHS2 Manufacturing Engineering · Semester 2 Week 5: Manufacturing Tools and Equipment

Lesson notes

Learning Objectives

Indicator: 2.3.1.LI.1 - Explain the difference between measuring tools such as rule, a vernier caliper and a micrometer screw gauge for measuring work pieces.

By the end of the lesson, learners can:

Identify a steel rule, a vernier caliper and a micrometer screw gauge by name and state the quantity each measures (Level 1 Recall).
Explain the difference between the three measuring tools in terms of their accuracy, readability and typical workshop uses (Level 2 Conceptual Understanding).
Read a simple measurement from each of the three instruments (e.g., rule to the nearest millimetre, vernier caliper to 0.1 mm, micrometer screw gauge to 0.01 mm) (Level 2 Skills).
Justify the choice of a measuring tool for a given work piece based on the required accuracy (Level 3 Strategic Reasoning).
Work collaboratively in mixed-ability groups to research, present and give feedback on the differences between the measuring tools.

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Curriculum details

Strand: Manufacturing Tools, Equipment and Processes (Strand 3)
Sub-strand: Manufacturing Tools and Equipment (3.1)
Content standard: 2.3.1.CS.1 - Demonstrate knowledge and understanding of using measuring tools 2.3.1.LO.1 Apply measuring instrument and hand tools to manufacture engineering components.
Indicator: 2.3.1.LI.1 - Explain the difference between measuring tools such as rule, a vernier caliper and a micrometer screw gauge for measuring work pieces.
Suggested placement: Semester 2, Week 5 (Week 25 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. 67

Exemplars (from the NaCCA curriculum)

Talk for Learning: Bring rule, vernier calipers and micrometer screw gauge to the classroom, and let learners identify and explain the use of these measuring tools.
Collaborative Learning: Learners in mixed ability groups read from the library, the difference between the rule, vernier calipers and micrometer screw gauge based on how they are used to measure a quantity in the workshop. Let learners present their findings in class and receive feedback from their colleagues.
Teaching and Learning Materials:
- * Rule * Vernier callipers * Micrometer screw gauge
- * Measuring tools * Audio-visuals
- * Supplementary books and materials * Library
Assessment (2.3.1.AS.1). The document marks these depth-of-knowledge levels for this indicator: Level 1 Recall; Level 2 Skills of conceptual understanding; Level 3 Strategic reasoning.