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Grade/Class: Grade 10 Number of Pupils in Class: …………. Date: ……/……/………… Duration: 80 minutes
Name of Teacher: ………………………………………….
Subject: Design & Technology Topic: 10.4. DESIGNING Subtopic: 10.4.1. Design Process Rationale: This is lesson number one in the 10.4. DESIGNING study series. Designing is a foundational topic in Design & Technology that equips Zambian learners with systematic problem-solving, analytical, and critical thinking skills. These capabilities are crucial for addressing real-world community challenges, such as classroom furniture constraints, agricultural storage, or domestic water management. The lesson employs a Learner-Centered Approach using the Discussion Method, Question & Answer Method, and Practical Work Method. This direct engagement allows learners to actively practice identifying needs, defining briefs, formulating specifications, and sketching design solutions within a cooperative learning environment. Specific Outcome(s): By the end of the lesson, learners should be able to: • 10.4.1.1. Apply design process in problem solving situations Prerequisite Knowledge: • Identification of simple, everyday design problems in the school or home. • Basic sketch-drawing and hand-labelling skills. • Broad familiarity with common raw materials such as timber, metals, and plastics. References: • Design and Technology Grade 10 Pupil's Book, pg. 82-89. • Zambia Grade 10 Design and Technology Teacher's Guide, pg. 54-58. Knowledge: Design Process: (Theme and theme analysis, Situation - outlining the situation and situation analysis; Problem identification, Formulation of a Design brief, Specification - detailed specifications of requirements, Research - gathering information relevant to the solution, (what, why, where, when, who) including Cuts and Paste ups) Generation of ideas - formulation of detailed design proposals for the production of the final product, Selection of best solution Skills: Applying the design process; Developing work plans; Creating design portfolios Values: Problem-solving; Innovation; Organization Teaching / Learning Aids: For Teacher Demonstration: 1 portfolio folder, 1 large printed Design Process Cycle Chart (Chart A: Design Cycle Stages), 1 wooden school desk model, 1 metal ruler. For Learner Activities (Groups of 5): 5 portfolio folders, 5 sets of sample problem cards, 5 plastic rulers, 5 drawing blocks containing design paper. Alternative Materials: Cardboard folders constructed from discarded shipping boxes, hand-drawn design cycle charts on recycled paper sacks, models constructed from local scrap timber or plastics. METHODOLOGIES, STRATEGIES AND APPROACHES: Approach: • Learner-Centered Approach Method: • Question & Answer Method — Introduction, Step 4 • Practical Work Method — Development Step 1, Step 3 • Discussion Method — Step 2 Strategy: • Guided Questioning — Introduction, Step 4 • Use of Charts/Diagrams — Development Step 1 • Brainstorming — Step 2 • Group Work — Step 3 Lesson Implementation: [TABLE_START] Stage|Teaching Methods|Teacher's Activities|Learner's Activities|Learning Points Introduction - 10 min|Question & Answer Method|Teacher greets the class, announces the subtopic, and displays 1 wooden school desk model. Teacher asks: "What common problems do we face in our classroom regarding the safe storage of personal books when we are sitting at this desk?"|Learners stand and greet the teacher. They analyze the wooden school desk model and respond: "Books fall off the desks, get dirty on the floor, or are stolen because our desks lack a secure storage shelf underneath."|Introduction to Problem Identification: Designing begins with identifying a specific human need or situation in our local environment that requires a functional solution. Development Step 1 - 15 min|Practical Work Method|Teacher displays 1 large printed Design Process Cycle Chart (Chart A: Design Cycle Stages) on the board. Teacher demonstrates how to copy the stages and outlines how to construct a simple "Situation" statement and "Design Brief" using a metal ruler on the whiteboard.|Learners observe the stages shown on Chart A. They use their plastic rulers and drawing blocks containing design paper to copy the formal sequence of the Design Process into their design portfolios.|The sequential phases of the Design Process: 1. Situation Analysis, 2. Problem Identification, 3. Design Brief (Statement of intent: "To design and make..."), 4. Specifications (measurable requirements), 5. Research, 6. Generation of Ideas, 7. Selection of the Best Solution. Step 2 - 15 min|Discussion Method|Teacher distributes 5 sets of sample problem cards to the class. Teacher asks: "From the card describing 'Zambian pupils losing their mathematical sets due to lack of secure desk compartments', how can we write a clear Design Brief and state two key Specifications?"|Learners read their cards, brainstorm in pairs, and respond: "The Design Brief is: 'To design and make a secure, attachable storage container for mathematical instruments.' The two specifications are: 1. It must fit a standard 15cm x 8cm metal instrument tin. 2. It must be attachable without permanently damaging the school desk."|Formulating a Brief and Specifications: • Brief: Clear statement of the design intent. • Specifications: Precise, measurable parameters of the proposed product (e.g., maximum dimensions, cost limit, material safety, portability). Step 3 - 30 min|Practical Work Method|Teacher divides learners into their 5 designated groups. Teacher distributes 5 portfolio folders, each containing a design scenario card: "Local market vendors need a portable display stand for small handcrafts." Teacher instructs groups to write out the Situation and Brief, and sketch two initial design ideas.|Learners work collaboratively in groups of 5. They read the scenario card, write down the Situation and Design Brief inside their portfolio folders, and sketch two distinct, labeled design proposals for a portable handcraft display stand on the design paper in their drawing blocks.|Group Task: Analyze "Portable market display stand". Required Outputs: • Written Situation Analysis • Formulated Design Brief • Two initial handcraft stand sketches • Note: Final selection of the best solution will be completed in the next step. Step 4 - 10 min|Question & Answer Method|Teacher asks Group 1 to read their Design Brief and Group 2 to present their design sketches. Teacher asks: "What criteria will you use to select the best design solution?" Teacher assigns homework: "Formulate a design brief and three specifications for a solar lamp holder."|Group 1 reads: "Brief: To design and make a foldable display stand for market vendors." Group 2 displays sketches of a triangular wooden stand and a multi-tiered plastic rack. Learners answer: "We select the best idea based on portability, material cost, and strength." Learners record homework.|Final Selection of Best Solution. Evaluation Grid: Rating initial design proposals against the target specifications. Homework Assignment: Brief: To design and make a stable, adjustable solar lamp holder. Specs: 1. Max height of 40cm. 2. Uses local timber. 3. Stable base. 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