Use bar model drawing to reason and solve equal groups problems involving geometric measurement. Use multiplication, rather than repeated addition, to find the perimeters of different geometric shapes. Use the sharing and grouping models of division to calculate the lengths of sides of various shapes.
Use bar models to find the perimeter of equilateral triangles, squares, and regular pentagons. Given the shape and side lengths measured in inches, feet, centimeters, or meters, find the perimeter. Use a bar model to show the relationship between the number of sides, the length of each side, and the perimeter. Prerequisites: 3-35, 3-34
Use bar models to find the perimeter of regular hexagons, heptagons, octagons, and nonagons. Given the shape and side lengths measured in inches, feet, centimeters, or meters, find the perimeter. Use a bar model to show the relationship between the number of sides, the length of each side, and the perimeter. Prerequisites: 3-36
Use the sharing model of division to find the length of each side of an equilateral triangle, square, or regular pentagon. Draw a bar model to visualize the relationship between the number of sides, the length of each side, and the perimeter. Calculate lengths in inches, feet, centimeters, and meters. Prerequisites: 3-50