Teach your scholars about shape attributes using this brief worksheet, which could be used as an all-class warm-up. There are three sets of shapes for learners to assess here. First, they count the number of triangles, then shade the circles, and finally color the rectangles. For each set, geometers must recognize which of the set are actually that shape and which are not. Some of the non-shapes are simply undefined, while others are the wrong or distorted shape.