Copy and complete the conversions of units below: Recall: 1m=100cm; 1cm=10mm;

1km=1000m; 1g=1000mg; 1kg=1000g

40mm = ____cm 7000m = _____km 5000mm=______m 720mm = ______ cm 2m= _______mm3500g = _____kg 19g = _____mg 3850mL = _____L

455mm = ____cm 930m = _____km 2590mm = _____ cm 0.92m = _____cm1.63m=______mm830g = _____kg 71.5g = _____mg 921mL = _____L2780mm=_______m

Sheep in the Paddock Farmer Harold has 3 paddocks (shown below). He wants to know whether he can shepherd 368 sheep in these paddocks. Each sheep requires 8m2 of grass to graze on. Does Farmer Harold have enough land? Triangle A=½bh

=½×13×14 =91m2

Parallelogram A=bh =90m×21m =1890m2

Rectangle A=bh =25m×90m =2250m2

Total area = 91 + 1890 + 2250 =4231m2

368sheep ×8m2 = 2944m2 = area of paddock the sheep need.Yes, he does have enough room.

13m

14m25m

90m

21m

12cm

7cm

9cm3cm6cm

Investigate: There are 8 lanes at 800mm width. This athletics track is 400m total in one lap. Calculate the Area of the track; the area of grass in the middle of the track

100m

12cm

7cm

9cm3cm6cm

Investigate: There are 8 lanes at 800mm width. This athletics track is 400m total in one lap. Calculate the Area of the track; the area of grass in the middle of the track

100m

Activity

• Find 3 objects around the room and taking measurements, calculate the area of the surface of the object.

Mr Brown has a large piece of canvas with an area of 2.2m2. He decides to cut the canvas into five smaller canvases each with an area of 4135cm2. Does Mr Brown have enough

canvas to make the five smaller canvases?• Do Now (in any order):

– Mr Brown question– Diagonal ratios investigation– Paper Cut-Outs investigation– Athletics track problem

– Remember to RECORD your thoughts, ideas as you progress through the activity