Class: Senior Secondary School 1 (SSS 1)
Term: 2nd Term
Week: 10
Age: 15 years
Duration: 45 minutes
Subject: Carpentry And Joinery
Curriculum Theme: Entrepreneurship Trade Subjects
Previous Lesson: Manufactured Boards Plywood.
Topic: SOURCES AND PRODUCTS OF TIMBER – Particle Board and Laminboard
Subject Matter: types of particle board, types of laminboard, uses of manufactured boards

Specific Objectives

By the end of the lesson, pupils should be able to:

Cognitive Domain:

Define particle board and laminboard.
Identify two types of particle board.
State two types of laminboard.
List three uses of manufactured boards in carpentry.

Affective Domain:

Appreciate the importance of manufactured boards as alternatives to natural timber.
Show interest in learning about different timber products.

Psychomotor Domain:

Sketch simple diagrams of particle board and laminboard.

Collaborate with peers during group discussions on board types and uses.

Reference Materials

The following resources were used in planning this lesson:

9 Years Basic Education Curriculum for Senior Secondary Schools.
State Unified Scheme of Work for Carpentry and Joinery, SSS 1.
Carpentry and Joinery for Senior Secondary Schools by a relevant author.

Instructional Materials

The teacher will teach this lesson with the aid of:

Samples of particle board and laminboard.
Charts showing different types and cross-sections of manufactured boards.
Diagrams illustrating the uses of manufactured boards.

Rationale for the Lesson

This lesson helps pupils understand various timber products used in construction and furniture making, beyond natural wood. Knowing about manufactured boards like particle board and laminboard enables pupils to make informed choices about materials for different carpentry projects, which is important for their practical skills and future trade.

Prerequisite/Previous Knowledge

Pupils are expected to have basic knowledge of natural timber and its common uses.

Lesson Content/Board Summary

SOURCES AND PRODUCTS OF TIMBER – Particle Board and Laminboard

Particle Board

Particle board is a type of manufactured wood product made from wood chips, sawdust, or other wood particles, mixed with a synthetic resin or binder, and pressed and extruded into panels. It is also known as chipboard.

The following are types of particle board:

Standard Particle Board: This is the most common type, used for general purposes.
Moisture-Resistant Particle Board: Treated to resist moisture, suitable for areas with some humidity.
Fire-Retardant Particle Board: Contains additives to improve resistance to fire.

Laminboard

Laminboard is a manufactured wood panel consisting of a core of wood strips (battens or blocks) glued together, with veneers of wood glued on both sides. The core strips are usually narrow, allowing for better stability and reduced warping.

The following are types of laminboard:

Blockboard: Made with a core of wider wood strips (blocks) glued edge-to-edge, then faced with veneers.
Battenboard: Similar to blockboard but with a core of narrower wood strips (battens).

Uses of Manufactured Boards

Manufactured boards like particle board and laminboard are used for various purposes due to their stability, strength, and cost-effectiveness. The following are some uses:

Furniture components (e.g., shelves, cabinet sides, table tops).
Interior doors.
Partition walls in offices and homes.
Shop fittings and display units.
Underlay for flooring.
Wall cladding and decorative panels.

Teaching Methods/Instructional Techniques

Discussion, Lecture, Demonstration, Question and Answer, Visual Aids

Instructional Procedures

Step 1: Introduction

Time: 5 minutes
Teaching Skill: Set Induction
Teacher’s Activity: The teacher greets the pupils and reviews the previous lesson on natural timber. The teacher then asks pupils to mention some common materials used to make furniture, guiding them towards products that are not solid wood.
Pupils’ Activity: Pupils respond to questions and mention materials like plywood and chipboard.
Learning Point: Pupils recall previous knowledge and are introduced to the topic of manufactured boards.

Step 2: Presentation of Particle Board

Time: 10 minutes
Teaching Skill: Explanation/Demonstration
Teacher’s Activity: The teacher defines particle board, explaining its composition and manufacturing process. The teacher shows samples of particle board and discusses different types, highlighting their characteristics and uses. The teacher writes key points on the board.
Pupils’ Activity: Pupils listen attentively, observe the samples, ask questions for clarification, and copy notes from the board.
Learning Point: Pupils learn the definition and types of particle board.

Step 3: Presentation of Laminboard

Time: 10 minutes
Teaching Skill: Explanation/Demonstration
Teacher’s Activity: The teacher defines laminboard, explaining its core structure and the role of veneers. The teacher shows samples of laminboard (e.g., blockboard) and explains the differences between blockboard and battenboard. The teacher writes key points on the board.
Pupils’ Activity: Pupils observe samples, listen to explanations, take notes, and ask questions.
Learning Point: Pupils understand the definition and types of laminboard.

Step 4: Uses of Manufactured Boards

Time: 7 minutes
Teaching Skill: Discussion/Listing
Teacher’s Activity: The teacher leads a discussion on the various uses of manufactured boards (particle board and laminboard) in carpentry and joinery. The teacher lists these uses on the board as pupils contribute.
Pupils’ Activity: Pupils participate in the discussion, offer examples of uses, and copy the listed uses from the board.
Learning Point: Pupils identify practical applications of manufactured boards.

Step 5: Practical/Sketching Activity

Time: 5 minutes
Teaching Skill: Practical/Observation
Teacher’s Activity: The teacher distributes paper and pencils and instructs pupils to sketch a simple cross-section of particle board and laminboard as seen from the samples or diagrams.
Pupils’ Activity: Pupils attempt to sketch the different boards.
Learning Point: Pupils develop psychomotor skills by sketching board structures.

Step 6: Class Discussion/Q&A

Time: 3 minutes
Teaching Skill: Questioning/Consolidation
Teacher’s Activity: The teacher facilitates a brief question-and-answer session to address any remaining confusion and to reinforce the main points of the lesson.
Pupils’ Activity: Pupils ask and answer questions, clarifying their understanding.
Learning Point: Pupils consolidate their understanding of the lesson content.

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

Define particle board.
Mention two types of particle board.
What is laminboard?
State three common uses of manufactured boards in carpentry.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Pupils demonstrate understanding of the lesson.

Step 8: Conclusion

Time: 2 minutes
Teaching Skill: Summarization
Teacher’s Activity: The teacher summarizes the key points of the lesson, emphasizing the importance of manufactured boards in modern carpentry. The teacher then gives homework, asking pupils to find out about plywood and its uses.
Pupils’ Activity: Pupils listen to the summary and note down the homework.
Learning Point: Pupils review the lesson and prepare for future topics.

Lesson Keywords

Particle Board – A manufactured wood product made from wood chips and resin.
Chipboard – Another name for particle board.
Laminboard – A manufactured wood panel with a core of wood strips faced with veneers.
Blockboard – A type of laminboard with a core of wider wood blocks.
Manufactured Boards – Engineered wood products created by binding wood particles or veneers with adhesives.

Differentiation

For pupils who grasp concepts quickly, the teacher can ask them to research the environmental impact of manufactured boards. For those needing more support, the teacher will provide additional visual aids and repeat explanations, ensuring they can identify and define the main board types.

Note for teachers using this lesson plan

Teachers should ensure they have actual samples of particle board and laminboard (or blockboard) for pupils to observe and touch. Encourage pupils to relate the lesson to items they see in their homes or schools that might be made from these materials.