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Curated OER
Countdown Challenge: Live Symmetry in Regular & Irregular Polygons
In this symmetry worksheet, students identify lines of symmetry in given polygons. They discover the correlation between the number of sides and the number of lines of symmetry. Students determine the lines of symmetry in irregular...
Curated OER
Countdown Challenge Symmetry
For this symmetry worksheet, middle schoolers identify the lines of symmetry in given polygons. They match the number of lines of symmetry to the correct figure. This one-page worksheet contains seven problems.
Curated OER
Countdown Challenge: Similarity
In this similarity learning exercise, students observe similar rectangles and determine the length of the diagonal. They use words, symbols and diagrams to solve the problem and explain the results. This one-page learning exercise...
Curated OER
Countdown Challenge: Similarity
In this similarity instructional activity, students use similar rectangles to find the length of a diagonal. They use symbols and write paragraphs to explain the problem. This one-page instructional activity contains one similar problem...
Curated OER
Countdown Challenge: Area of Basic Shapes
In this basic shapes worksheet, students use formulas to determine the area of given figures. They compute the area of composite figures and subtract the area of shaded areas. This one-page worksheet contains 12 problems.