Materials and… · SHS1 Applied Technology

Lesson notes

Learning Objectives

Indicator: 1.5.2.LI.1 - Classify the two main types of timber

By the end of the lesson, learners can:

Define timber and distinguish it from the standing tree or raw log.
Identify at least five Ghanaian and international wood species and classify each as either hardwood or softwood.
Explain the key structural and physical differences between hardwoods and softwoods, including their cellular structure, density, and leaf-bearing characteristics.
Compare and contrast the common uses of hardwoods and softwoods in the Ghanaian woodwork industry, giving at least three examples of each.
Justify the choice of a specific timber type for a given woodwork product, using reasoning based on the properties of hardwoods and softwoods.

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Curriculum details

Strand: Woodwork Technology (Strand 5)
Sub-strand: Materials and Artefacts Production Woodowrk Industry in Ghana (5.2)
Content standard: 1.5.2.CS.1 - 1.5.2.CS.1 Demonstrate knowledge and understanding of classification and processing phases of timber in the woodwork industry 1.5.2.LO.1 Demonstrate knowledge and understanding in the classification of timber and its processing phases in the woodwork industry. 1.5.2.LO.2 Demonstrate knowledge and understanding of manufactured boards from Wood and non-wood residues to describe their types and uses
Indicator: 1.5.2.LI.1 - Classify the two main types of timber
Suggested placement: Semester 2, Week 14 (Week 34 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. 62

Exemplars (from the NaCCA curriculum)

Experiential learning: Display samples of different types of wood species and task learners in mixed ability groups to carefully identify and passionately explain softwoods and hardwoods with open-mindedness. Group work/Collaborative Learning /Digital Literacy learning.
- Guide learners in mixed gender ability groups to co-operatively discuss the differences between hardwoods and softwoods with open-mindedness.
- Task learners in mixed ability groups to passionately use the google search engine (YouTube ) to surf for videos to assist them discuss the uses of hardwoods and softwoods with open-mindedness and Work Ethics.
- Guide learners in mixed ability groups to explain the various processing phases of timber with open-mindedness and Work Ethics.
Critical Thinking and Talk for Learning Approaches: Guide learners through class session to brainstorm the meaning and methods of conversion of timber with open-mindedness and Faithfulness.
Group work/Collaborative Learning: Task learners in mixed ability groups to explain and discuss the seasoning methods in timber processing with open-mindedness and Faithfulness.
Group work/Collaborative Learning /Digital Literacy learning: Guide learners in mixed ability groups to use the google search engine (YouTube) surf for videos to assist them discuss the advantages and disadvantages of the conversion methods with open-mindedness, Co-operation and Work Ethics.

Assessment (1.5.2.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; Level 4 Extended critical thinking and reasoning.

Teaching and Learning Materials:
- Hand specimens of softwoods and hardwoods/xylarium
- YouTube videos on timber conversion/Flip chart
- specimens of wood sawn using the conversion methods.
- YouTube videos on timber seasoning/Flip chart
- specimens of seasoned timber
- Computer/Smart phone
- Magnifying hand lens/knife
- Wood anatomy laboratory/Visit a xylarium/collection of timber species specimens
- Hand samples of manufactured boards
- YouTube videos on manufactured boards/Flip chart
- Computer/Smart phone