Foundation November 2017 Unit 1 Q9
9. In this question, you will be assessed on the quality of your organisation, communication and accuracy in writing.
Rectangle A measures 25 cm by 8 cm.
Rectangle B is five times as long and five times as wide as rectangle A.
What is the perimeter of rectangle B?
You must show all your working. [3 + 2 OCW]
| Scheme | Marks | Comments |
|---|---|---|
| (Length of rectangle B = 25 × 5=) 125 OR (Width of rectangle B = 8 × 5 =) 40 | B1 | |
| (Perimeter of rectangle B =) 125 + 125 + 40 + 40 | M1 | FT 'their 125' and 'their 40' |
| 330 (cm) | A1 | CAO |
| Organisation and communication | OC1 | For OC1, candidates will be expected to: • present their response in a structured way • explain to the reader what they are doing at each step of their response • lay out their explanations and working in a way that is clear and logical • write a conclusion that draws together their results and explains what their answer means. |
| Accuracy of writing | W1 | For W1, candidates will be expected to: • show all their working • make few, if any, errors in spelling, punctuation and grammar • use correct mathematical form in their working • use appropriate terminology, units, etc. |
Alternative
Alternative solutions:
| Scheme | Marks | Comments |
|---|---|---|
| (Perimeter of rectangle A =) 25 + 8 + 25 + 8 (cm = 66) | M1 | |
| 5 × 66 (cm) | M1 | FT 5 × ‘their derived perimeter’ |
| (Perimeter of rectangle B = 5 × 66 =) 330 (cm) | A1 |
OR
| Scheme | Marks | Comments |
|---|---|---|
| 25 × 5 + 8 × 5 (= 125 + 40 = 165) | M1 | |
| 2 × 165 | M1 | FT 'their 165' |
| (2 × 165 =) 330 | A1 |