Wood Grading and Defects

Lesson to meet requirements for teaching limitations and defects in wood to help pupils make informed choices when selecting timber.

Common defects of wood. (5min) Class
Teaching method: Introduce, pupils investigate, mini whiteboard to recall facts.
Rational: Introducing new vocabulary.
Line of questioning: When selecting wood, why is important to look for defects?
mini whiteboard: Progress check

Grading wood (5 min) Pair
Teaching method: Demonstration, Questioning,
mini whiteboard: Progress check
Rational: Make informed decisions, check progress

Selecting Wood (15 min) Pair
Teaching method: Facilitate pupils investigation, provide factsheets, pupils to record information found through scanning, circulate to guide pupils. Model scanning method.
Rational: literacy focus to develop pupils lit skills, pupils need the information to make informed choices, working in pairs to support each other.

Consolidating Information (10 min) Silence
Teaching method: Open question – ‘When selecting a wood species for a product what do pupils have to consider before committing to the material?’
Rational: Pupils to answer an assessment of learning question using as much detail as possible. Consolidating learning from this and previous lesson.

Learning Leading to
Pupils will have to select and justify materials for their products, they have to state what needs to be considered and how the materials they select can be quality checked and finished to achieve a good result.

Extension activity and Stretch it (10 minutes) Individual
How wood is graded. Pupils to investigate how wood is graded and what information they would find from a piece of wood graded wood.