MATHEMATICAL LITERACY GRADE 12 CAPS TOPIC 1 Measurement

*Topic 1: Measurement The following sections will be covered: 1. 1 Conversions 1. 2

*Conversions In Section 1. 1, learners will be able to: *Convert units of measurement:

*Conversions For all conversions use the following:

*Conversions *We will start with revision of conversions done in Grade 10 and 11.

*Conversions ØConversions using conversion factors or tables: Table: 2 ØConversions between different systems Table:

*Conversions ØMetric to imperial Table: 4 Imperial Length 1 inch Metric 25, 4 mm

*Conversions ØCalculated area to liquid volume conversions How does a painter know how much

*Question 2 Convert 5 263 mm to metres A. 5, 263 m B. 52,

*Question 3 What unit of measurement would you use to measure the capacity of

*Question 7 Write 1 782 minutes in days, hours and minutes A. 2 day

*Question 8 Jerry needs 4 tonnes of stone to mix with cement to lay

*Solutions: Final Assessment Questions 1. C 2. A 3. B 4. A 5. D

Slides: 32

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*MATHEMATICAL LITERACY GRADE 12 CAPS TOPIC 1: Measurement Section 1. 1: Conversions

*Topic 1: Measurement The following sections will be covered: 1. 1 Conversions 1. 2 Time: working with transport time-tables 1. 3 BMI growth charts for children 1. 4 Calculating perimeter, area and volume 2

*Conversions In Section 1. 1, learners will be able to: *Convert units of measurement: Ø from memory for the metric system, Øusing given conversion factors and/tables, Ø between different systems. *Express measurement values and quantities in units appropriate to the context.

*Conversions For all conversions use the following:

*Conversions *We will start with revision of conversions done in Grade 10 and 11. ØConversion from memory in the metric system Table: 1 Distance Mass 10 mm = 1 cm 1 000 mg = 1 g 100 cm = 1 m 1 000 g = 1 kg 1 000 m = 1 km 1 000 kg = 1 tonne Volume

*Example 1: *

*Solutions: Example 1 *

*Conversions ØConversions using conversion factors or tables: Table: 2 ØConversions between different systems Table: 3 Baking powder Flour Salt Sugar

*Example: 2 *

*Solutions: Example 2 cont. *

*Conversions ØMetric to imperial Table: 4 Imperial Length 1 inch Metric 25, 4 mm 1 foot (12 inches) 1 mile Mass Volume 1 ounce Metric 304, 8 mm 1, 609 km 1 cm 1 km 28, 35 g Imperial 0, 394 inch 0, 621 mile 1 g 0, 035 ounces 1 pound (16 ounces) 453, 59 g 1 kg 2, 205 pounds 1 US gallon (8 pints) 3, 785 l 1 l 0, 624 US gallons

* Activity: 1 *

*Solutions: Activity 1 *

*Solutions: Activity 1 cont. *

*Conversions *

*Conversions ØCalculated area to liquid volume conversions How does a painter know how much paint to buy to paint a wall? *First, he calculates the surface area that he will paint. *Then he finds the spread rate of the paint he will use. What is spread rate? ØIt is the conversion ratio for converting from area to liquid volume.

*Activity: 2 *

*Solutions Activity 2 *

*Final Assessment Questions 1 -10

*Question 1 *

*Question 2 Convert 5 263 mm to metres A. 5, 263 m B. 52, 63 m C. 526, 3 m D. 5, 263 mm

*Question 3 What unit of measurement would you use to measure the capacity of a cup? A. Metres B. Millilitres C. millimitres D. grams

*Question 4 *

*Question 5 *

*Question 6 *

*Question 7 Write 1 782 minutes in days, hours and minutes A. 2 day 5 hours 42 minutes B. 1 day 5 hours 42 minutes C. 1 day 6 hours 42 minutes D. 1 day 4 hours 42 minutes

*Question 8 Jerry needs 4 tonnes of stone to mix with cement to lay a foundation of a house. The stone can only be bought in bags of 25 kg. Calculate how many bags he needs to order. A. 320 bags B. 32 bags C. 16 bags D. 160 bags

*Question 9 *

*Question 10 *

*Solutions: Final Assessment Questions 1. C 2. A 3. B 4. A 5. D 6. C 7. B 8. D 9. A 10. B