1
Construct line segments of given length
Draw line segments accurately using ruler and compass.
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Constructions and Tilings
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2
Construct circles and arcs
Use compass settings to draw circles and arcs with given radius.
3
Copy a line segment or angle
Reproduce given lengths or angles using construction tools.
4
Construct triangles from side data
Construct triangles when suitable side lengths are given.
5
Construct angles using geometric tools
Construct standard or given angles with accuracy.
6
Check construction validity
Verify that constructed figures meet the given measurements.
7
Identify shapes that tile a plane
Recognize shapes that can cover a plane without gaps or overlaps.
8
Analyze angle sums around a point
Use angles around a point to reason about tiling.
9
Create repeating tiling patterns
Build and describe patterns using congruent shapes.
10
Use symmetry in tiling designs
Identify and apply line or rotational symmetry in patterns.
11
Explain why a tiling works
Justify a tiling using shape and angle reasoning.
12
Find errors in construction or tiling
Spot measurement or placement errors in geometric designs.
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