This Week's Strategies: Discovery Learning—Grades 5-8
Areas of Parallelograms, Triangles, and Trapezoids: In this clip, Heidi Janzen shows ways to use hands-on discovery to determine the areas of parallelograms, triangles, and trapezoids and relate them to area formulas that students already know.Professional Development Tip: Discovery learning helps students remember algorithms and formulas because they have a concrete or pictorial image to relate to the symbolic notation.
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Clip 1: Areas of Parallelograms, Triangles, and Trapezoids
In this clip, Heidi Janzen shows ways to use hands-on discovery to determine the areas of parallelograms, triangles, and trapezoids and relate them to area formulas that students already know.
Clip 2: Concrete Models
In this clip, the teacher reviews the formula for the volume of a cube and relates it to the volume of a rectangular prism.
Clip 3: Ratios in Decimal Form
In this clip, students convert ratios to decimal form and discover equivalent ratios.
Clip 4: Volume
In this clip, students make predictions about the volume of a cube and then construct cubes using nets to test their predictions.
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