Scale drawings corbettmaths

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Thank you for the post. I think the key issue here is the ratio conversion not necessarily scale. Most students understand that ratio colons ":" means "to", But some students try the hard conversion by trying to change cm to km while it is much easier to do the opposite. I agree they do know what a ratio is but I'm less sure they're familiar with ratios in the contexts of maps, which is why this particular GCSE question threw them. Thanks for a very interesting post. I find it a frustrating topic to resource because a lot of superficially realistic and relevant tasks are really too easy. The difficult part is deciding, from a scale, what to multiply or divide distances by to convert them.

Scale drawings corbettmaths

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C onversion graphs interpret Practice Questions answers Textbook answers.

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Scale drawings are used to represent larger or smaller objects, drawings, images or maps. There are 6 skills you need to learn for scale drawings. Take a pre-assessment and understand what topic areas you need to work on to ensure you pass for level 2 maths exam first time. Scale factors are used to accurately scale up or down an image. Scale drawings will come with a key, or a scale factor, that tells you what a dimension in the drawing is equal to in real life.

Scale drawings corbettmaths

Here we will learn about scale drawings, including creating scale drawings, using scale factors, and word problems. An enlargement changes the size of an object by multiplying each of the lengths by a scale factor to make it larger or smaller. In order to interpret and produce scale drawings we need to know the scale factor and the actual lengths of the object. This means that every centimetre on the diagram represents 2 metres in real life. So the 6cm width of the diagram represents a 12m width on the real pool. The majority of scale drawing questions will involve polygons or 2D drawings such as floor plans or using a map although there is overlap with topics such as enlargement, construction of triangles , and loci. Includes reasoning and applied questions. Scale drawing is part of our series of lessons to support revision on scale.

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Scale drawings represent real objects with accurate lengths reduced or enlarged by a given scale factor close scale factor The ratio of corresponding edge lengths, drawing to real life. Scale drawings close scale drawing An accurate drawing, or model, of a representation of a physical object in which all lengths in the drawing are in the same ratio to corresponding lengths in the actual object.

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