Ohio Resource Center
Content Supports - Technologies
Interactive Geometry Dictionary: Areas in Geometry
Discipline
Mathematics
5, 6, 7
Professional Commentary

The applets at this site allow students to manipulate rectangles, parallelograms, and triangles to develop formulas for their areas and to see the relationships among them. (sw)

Common Core State Standards for Mathematics
Geometry
Solve real-world and mathematical problems involving area, surface area, and volume.
6.G.A.1
Find the area of right triangles, other triangles, special quadrilaterals, and polygons by composing into rectangles or decomposing into triangles and other shapes; apply these techniques in the context of solving real-world and mathematical problems.
Ohio Mathematics Academic Content Standards (2001)
Measurement Standard
Benchmarks (5–7)
C.
Identify appropriate tools and apply appropriate techniques for measuring angles, perimeter or circumference and area of triangles, quadrilaterals, circles and composite shapes, and surface area and volume of prisms and cylinders.