Assessment guidelines


• This activity is intended for informal assessment. • Use the checklist below to assess learners. Criteria


The learner(s) can: predict what will happen to the material before the ball is dropped. recognise why the different materials have specific uses. recognise the need to take safety precautions.


Activity 2 Bending and strengthening Learner’s Book page 32 Guidelines to implement this activity


• This is a group activity. • Divide the learners into groups of 3–4. • Learners have already done an activity similar to this where they learnt to strengthen material by folding it.


• The difference here is that they are strengthening it by increasing support and using thicker material.


• The thicker strip on its edge should prove to be the strongest. Note the similar principle with the I-beam.


Assessment guidelines


This activity is intended for informal assessment. Use the checklist below to assess learners. Criteria


Yes


The learner(s): can recognise ways of strengthening material other than the method used earlier where paper was folded to give it greater strength.


Activity 3 Find the centre of gravity Learner’s Book page 34 Guidelines to implement this activity


This is a group activity • Divide the learners into groups of 3–4.


54 Partly No Yes Partly No


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