Evaluation for 5.2c
Materials provide opportunities for students to evaluate mathematical representations, models, strategies, and solutions for efficiency, flexibility, and accuracy throughout learning pathways.
In Progress Learning Geometry, students have opportunities to evaluate mathematical representations, models, strategies, and solutions for efficiency, flexibility, and accuracy. For example, in Lesson 3: "Areas of Polygons and Composite Figures," students are shown how to find the area of a regular hexagon by finding the composite area of six congruent equilateral triangles, and then are introduced to the area of a regular polygon formula as a way to provide a more efficient way of solving the problem. The hexagon is redrawn as the six triangles to represent the different formulas. The representations demonstrate the flexibility in the approach and the accuracy between the two methods. In Progress Learning Geometry, students have opportunities to evaluate mathematical representations, models, strategies, and solutions for efficiency. For example, in Lesson 12: "Special Right Triangles," students are encouraged to "look for shortcuts instead of using the Pythagorean Theorem where possible." Students evaluate models to determine if a special right triangle property would be more efficient than the Pythagorean theorem. In Progress Learning Geometry, students have opportunities to evaluate mathematical representations, models, strategies, and solutions for accuracy. For example, IQ Showdown is a cooperative learning strategy used throughout the material for students to evaluate a concept for the worst answer, trickiest answer, and the correct answer while justifying their choices.