Unit 1 End Assessment

Scale Drawings

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1A: Scaled Copies

I can tell whether or not a figure is a scaled copy of another figure.I can describe some characteristics of a scaled copy.In a pair of figures, I can identify corresponding points, corresponding segments, and corresponding angles.I can describe what the scale factor has to do with a figure and its scaled copy.I know what operation to use on the side lengths of a figure to produce a scaled copy.I can draw a scaled copy of a figure using a given scale factor.I can use corresponding distances and corresponding angles to tell whether one figure is a scaled copy of another.When I see a figure and its scaled copy, I can explain what is true about corresponding angles.When I see a figure and its scaled copy, I can explain what is true about corresponding distances.I can describe the effect on a scaled copy when I use a scale factor that is greater than 1, less than 1, or equal to 1.I can explain how the scale factor that takes Figure A to its copy Figure B is related to the scale factor that takes Figure B to Figure A.I can describe how the area of a scaled copy is related to the area of the original figure and the scale factor that was used.

1B: Scaled Drawings

I can explain what a scale drawing is, and I can explain what its scale means.I can use a scale drawing and its scale to find actual distances.I can use actual distances and a scale to find scaled distances.I can use a map and its scale to solve problems about traveling.When I know the actual measurements, I can create a scale drawing at a given scale.I know how different scales affect the lengths in the scale drawing.I can determine the scale of a scale drawing when I know lengths on the drawing and corresponding actual lengths.Given a scale drawing, I can create another scale drawing that shows the same thing at a different scale.I can use a scale drawing to find actual areas.

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