Marking a learner’s work
Below is a piece of work completed by a learner.
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Go through and correct all the errors made.
Write comments against each error that would help the learner understand the
mistakes they have made.
Q1
Area of the sandpit = 4.5m x 3.5m = 15.75m2
Each bag covers 5m2
15.75 ÷ 5 = 3.15 bags, which is 3 bags to the nearest whole bag
Q2
5 km = 5000m
500 ÷ 25 = 200 lots of 25m, each taking 30 sec
30 sec x 2 = 1 min
So 200 x 2 = 400 mins
400 mins ÷ 60 = 6.40 hours
Q3
Volume of concrete = 17 x 22 x 100
= 37400m3
Q4
Len = 5 – 2 – 3 x 2 = 0 points
Bruno = 5 + 4 x 2 – 6 x 2 = 24 points
So Bruno wins
Q5
6000m2 ÷ 3g = 2000g of seed
2000g ÷ 250g per bag = 8 bags needed
So 5 bags won’t be enough