S1_Level_E_Ch17_Scaled_Drawings (1)

S1_Level_E_Ch17_Scaled_Drawings (1) - 13 Feb 2012 13 Feb...

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Unformatted text preview: 13 Feb 2012 13 Feb 2012 Created by Mr. Lafferty Maths Dept. Created by Mr. Lafferty Maths Dept. Bearings Working with Scales Scaled Drawings Scaled Drawings www.mathsrevision.com Making Simple Scale Drawings Harder Scale Drawings Compass Points 13 Feb 2012 13 Feb 2012 Created by Mr. Lafferty Maths Dept. Created by Mr. Lafferty Maths Dept. Starter Questions Starter Questions www.mathsrevision.com 2 . C a lc u la t e 7 0 % o f 8 4 (a) 2. 67 (b) 3. 23 (c) 2. 9 9 1. 99. 6 + 7. 27 3. 25% of 160p 4. Round t o 1 decimal place 5. Find t he value of x 4x + 25 = 69 13 Feb 2012 13 Feb 2012 Created by Mr. Lafferty Maths Dept. Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Learning Intention Learning Intention Success Criteria Success Criteria 1. 1. To be able to understand the term To be able to understand the term scale drawings. scale drawings. 1. To understand the term scale drawing and how they are used in real life. 2. Interpret scale drawing into real- life measurements. Scale Drawings & Bearings Scale Drawings & Bearings 13 Feb 2012 13 Feb 2012 Created by Mr. Lafferty Maths Dept. Created by Mr. Lafferty Maths Dept. www.mathsrevision.com A scale of A scale of 1 cm = 2m 1 cm = 2m This simply means for every 1cm measured on a drawing this represents 2m in real-life. Definition S1 Level E Scales Scales 13 Feb 2012 13 Feb 2012 Created by Mr. Lafferty Maths Dept. Created by Mr. Lafferty Maths Dept. www.mathsrevision.com In order to make sense of a map or scale diagram the scale must be known. Scales Scales 4 cm For this scale model 1 cm represents 1m This means for every 1 metre of the actual car, 1cm is drawn on the map. S1 Level E 13 Feb 2012 13 Feb 2012 Created by Mr. Lafferty Maths Dept. Created by Mr. Lafferty Maths Dept. www.mathsrevision.com 6cm The scale of this drawing is 1cm = 5m What is the actual length of the tree ? Scales Scales 6 x 5 = 30m S1 Level E 13 Feb 2012 13 Feb 2012 Created by Mr. Lafferty Maths Dept. Created by Mr. Lafferty Maths Dept. www.mathsrevision.com 5cm The scale of this drawing is 1cm = 90cm What is the actual length of the bus in metres ? Scales Scales 5 x 90 = 450cm 4.5m S1 Level E 13 Feb 2012 13 Feb 2012 Created by Mr. Lafferty Maths Dept. Created by Mr. Lafferty Maths Dept. Now try Ex 1 Ch17 (page 194) www.mathsrevision.com Scales Scales S1 Level E 13 Feb 2012 13 Feb 2012 Created by Mr. Lafferty Maths Dept. Created by Mr. Lafferty Maths Dept....
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This note was uploaded on 02/13/2012 for the course REL133 133 taught by Professor Gaffney during the Spring '10 term at University of Phoenix.

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S1_Level_E_Ch17_Scaled_Drawings (1) - 13 Feb 2012 13 Feb...

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