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5. Calculate how much wirenetting you will need to go right round the henrun. (You do not need a gate; you can step over.)
6. Challenge: Make a model of your henrun. You may even make it to scale. Ask your educator to help you. (Use a simple scale, e.g. 1 cm =1 m).
TEST YOUR PROGRESS
1. Complete the following:
Solve the following sums and write down all the steps of your calculations:
2. 87 mm + 4 568 mm + 1,250 m (answer in metres)
3. An ant runs round the edge of a book that is 15 cm wide and 21,5 cm long. How far does the ant run?
4. Peter drinks 250 ml of water after a tennis match and then the coach gives him 350 ml of orange juice. How much liquid does he drink altogether?
5. The mass of a van is 2 250 kg when it is empty. Sixteen bags of oranges each with a mass of 15 kg are loaded onto the van. What is the mass of the van and its load together? (4)
6. Mother has 5 kg of flour. She uses three and a half kg of it. How much flour is left? (2)
LO 4 
measurementThe learner will be able to use appropriate measuring units, instruments and formulae in a variety of contexts. 
We know this when the learner: 
4.1 reads, tells and writes analogue, digital and 24hour time to at least the nearest minute and second; 
4.2 solves problems involving calculation and conversion between appropriate time units including seconds, minutes, hours, days, weeks, months and years; 
4.3 uses timemeasuring instruments to appropriate levels of precision, including watches and clocks; 
4.4 describes and illustrates ways of measuring and representing time in different cultures throughout history; 
4.5 estimates, measures, records, compares and orders twodimensional shapes and threedimensional objects using S.I. units with appropriate precision for:

4.6 solves problems involving selecting, calculating with and converting between appropriate S.I. units listed above, integrating appropriate context for Technology and Natural Sciences; 
4.7 uses appropriate measuring instruments (with understanding of their limitations) to appropriate levels of precision including:

4.8 investigates and approximates (alone and/or as a member of a group or team):

ACTIVITY 1 measuring
1.1 500 g (or other sizes)
1.2 (a) 500 g; (b) cornflakes; (c) depends on size; (d) 250 g
1.3 (a) own; (b) own (2,5 g); (c) 2,5 g; (d) own
1.4
Object  My estimation  Actual measured mass 
Teabag  own  2,5 g 
Margarine  own  500g (or other) 
Brick  own  About 3 kg 
Me  own  Own 
2. Length and Distance
2.1 to 2.7 Recordings:
Item  Estimation  Actual Measurement 
Head  own  Own 
Friend’s head  “  “ 
Foot  “  “ 
Height  “  “ 
Tall person: height  “  “ 
Eyelash  “  “ 
Thumbnail: width  “  “ 
Longest finger: length  “  “ 
2.8
Item  Estimation  Actual Measurement 
Height of door  own  2m 
Width of window  “  They vary 
Length of corridor  “  “ 
Distance to Office  “  “ 
Length of rugbyfield  “  “ 
Width of soccerfield  “  “ 
(The size of school sportsfields are smaller than ones for adults.)
3. Measuring Capacity
Item  Estimation  Actual Measurement 
Bucket  own  Usually 5 or 10 or 15 
Cool drink tin  “  Depends on size of tin 
Cool drink tins in a litre packet  “  “ 
Teaspoon  “  5 ml 
Teaspoons in a titre packet  “  200 
Baby’s bath  “  Depends 
My bath  “  “ 
School swimmingpool  “  “ 
Pools differ in size
ACTIVITY 2 problems using S.I. units
1.1
Month  Rainfall in ml that month  Total for that month 
January  17,4  
February  
March  58,6  
April  30,5  
May  
June  17,0  
July  60,4 
1.2 oral
1.3 yes
1.4 5 ml
1.5 half
1.6 February and May
1.7 autumn according to these figures – 89,1ml then; 77,4ml in winter so far, but the rainfall for August has not been included. (It is actually a winter rainfall area.)
1.8 123,5 ml
2.1 Gary 2.2 4,6 m is the longest jump.
3. 5 958 km
4. 380,9 km
5. 7,17 kg
ACTIVITY 3 perimeter – practical investigation
1 to 6 Own practical measurement and recording
TEST YOUR PROGRESS
1.1 6,578 kg
1.2 5 703 m
1.3 6,712 liter
1.4 0,768 m
1.5 3,4 cm
1. 5,905 m
2. 73 cm
3. 600 ml
4. 2 490 kg
5. 1,5 kg
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