University of Regina (Canada)
University of Regina: Math Central: Measurement, Perimeter, and Area Activities
Measurement, perimeter, and area skills are exhibited while students participate in these hands-on lessons. Each lesson plan includes objectives, methods, strategies, a description, and assessment techniques.
CK-12 Foundation
Ck 12: Interactive Geometry: 9.5 Modeling in Three Dimensions
Explore connections between a 2-dimensional net and a 3-dimensional box. Later in this section, use equations with variables to solve real world problems that use 2 and 3-dimensional objects.
CK-12 Foundation
Ck 12: Interactive Geometry: 7.8 Triangles in Applied Problems
Explore some problems you can solve with your knowledge of triangles and trigonometry.
CK-12 Foundation
Ck 12: Interactive Geometry: 1.9 Composite Shapes
Learn how to manipulate and measure composite shapes.