I love this Geometric Shapes chart shared by Kathryn on Kindergarten Kindergarten! I had to scroll down to find it, but found a ton of great ideas along the way. I also loved her shape museum. (She has lots of free ideas for teaching math concepts.
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TEKS Audience: First Grade. Behavior: Sort and classify shapes. Condition: Using attributes and informal geometric language. I believe this activity matches the TEKS because this anchor chart teaches students to look at shapes and their attributes.