Lesson Notes By Weeks and Term v4 - SHS 2

Lesson Video

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Performance objectives

• Identify different types of wood and their properties.
• Produce working drawings using manual sketching.
• Use Computer-Aided Design (CAD) to create detailed drawings.
• Select appropriate materials for a woodwork project.
• Create a model from your drawings.

Lesson summary

This lesson focuses on a crucial skill in the world of design and technology: transforming a creative idea into a technical plan that anyone can follow to build it. In Ghana, our skilled carpenters and furniture makers, from the small roadside shop to large factories, need a clear way to communicate their designs. A simple sketch is good, but a working drawing is better. It is the language of makers. It contains all the necessary information—precise shapes, exact sizes, and materials—to ensure a wooden artefact like a chair, table, or cabinet is made correctly the first time.

Lesson notes

This lesson builds upon your previous work on the design process (identifying a problem, sketching ideas, and choosing a final solution). Now, we take that final solution and make it official. Concept 1: What is a Working Drawing?

A working drawing is a set of technical drawings used during the manufacturing phase of a product. It is a universal language that communicates all the information needed to make an artefact without any further questions. It is a *contract* between the designer and the maker.

A complete working drawing for a simple wooden object typically includes: Orthographic Views: 2D drawings showing the object from different sides (Front, Top, and Side). This is the main part of the drawing. Dimensions: Numbers that show the exact length, width, and height of every feature on the object. Title Block: A small box, usually at the bottom right corner, containing key information like: Title of the project (e.g., "Library Bookshelf") Your Name Date Scale (e.g., 1:5) Material (e.g., "Odum Wood") Projection Symbol (First or Third Angle) Concept 2: Orthographic Projection - The Heart of Working Drawings

Imagine you have a small wooden box. Now, imagine placing this box inside a clear glass box. If you look directly at the front of the box and trace its outline onto the glass, you get the Front View. If you look directly down from the top and trace the outline, you get the Top View (or Plan). If you look from the side, you get the Side View (or End View).

Evaluation guide

• Produce working drawings from the final solution
• Experiential learning/Project- based Learning/ Group work/Collaborative
• Learning
• Task learners in mixed ability groups to passionately sketch possible solutions to