Geometric Representations 1.8 AS Credits

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Geometric Representations 1.8 AS Credits

Presentation transcript:

Geometric Representations 1.8 AS91033 3 Credits Constructions

Constructions I can read a scale Learning objectives 17/01/2019 I can read a scale I can find the real lengths from scale drawings I can construct scale drawings

Reading a scale 1 : 10 1 : 200 1: 50 1 : 20 1: 1000 1: 100000 1 cm on the map 10 cm in real life 1 cm on the map 200 cm in real life 1 cm on the map 50 cm in real life 1 cm on the map20 cm in real life 1 cm on the map 1000 cm in real life 1 cm on the map 100000 cm (1km) in real life

1000000 ÷ 50000 = 20 cm 50000 x 8 = 400000 cm =4km 200000 ÷ 25000 = 8 cm 25000 x 22= 550000 cm = 5.5km 5000000 ÷ 100000 = 50 cm 100000 x 12 = 1200000 cm = 12km 2 : 20 2 : 2000000 1 : 1000000 5 : 10 cm:km 5 : 1000000 cm 1 : 200000

Reading scales 130 ÷ 50 = 2.6 180 ÷ 50 = 3.6 120 ÷ 50 = 2.4 350 ÷ 50 = 7 40 ÷ 50 = 0.8 50 ÷ 50 = 1 320 ÷ 50 = 6.4

main hall width 18cm 1800cm = 18 m Ladies toilet width 5cm 500cm = 5 m length 4cm 400cm = 4m

Success Criteria I can read a scale I can find the real lengths from scale drawings I can construct scale drawings 10 ticks level 5 pack 3 page 9-11 10 Ticks level 6 pack 2 page 33-36 10 Ticks level 6 pack 8 page 31-32 MEP 14.2