Unit 4


Topic 4: Processing


• Case study 3: technological products can have a negative impact. • Investigate a technological product that can have a negative impact on society. • Class discussion: facilitate a class discussion on possible solutions that can counteract or compensate for the negative impact of the technology identified.


Unit – TERM 2: Formal assessment task: PAT


• Revise: forces that act on material – tension; compression; bending; torsion; shear. • Adapting materials to withstand forces – reinforcing concrete, plywood. • Selecting metal sections (I-beam, angle iron, T-bar, etc.) to withstand forces and to save material.


• Design: learners adapt a material or design a product that will solve the problem or reduce the impact or negative effects of the technology identified.


• Design: learners sketch free-hand sketches showing two possible solutions. • Make: learners draw their chosen solution in 3-D using isometric projection. • Make: learners make the model/prototype/product they have designed safely. • Make (cont.): Learners make the model/prototype/product they have designed safely.


• Evaluate: learners evaluate their solution in terms of its effectiveness in solving or reducing the negative impact of the technology identified. Their evaluation will be assessed in terms of its objectivity, fairness, accuracy and scope (depth).


–


• Communicate: Teams present their plans, model and evaluation. Formal assessment task: Test


97 2 97


Learner’s Book page


94–95


Time


allocation (2 hours)


2


Learner’s Book page


Time


allocation (2 hours)


2 2


98


1


18


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61