Expressions, equations, and relationships. The student applies mathematical process standards to use geometry to represent relationships and solve problems. The student is expected to: (A) extend previous knowledge of triangles and their properties to include the sum of angles of a triangle, the relationship between the lengths of sides and measures of angles in a triangle, and determining when three lengths form a triangle; (B) model area formulas for parallelograms, trapezoids, and triangles by decomposing and rearranging parts of these shapes; (C) write equations that represent problems related to the area of rectangles, parallelograms, trapezoids, and triangles and volume of right rectangular prisms where dimensions are positive rational numbers; and (D) determine solutions for problems involving the area of rectangles, parallelograms, trapezoids, and triangles and volume of right rectangular prisms where dimensions are positive rational numbers.
Use this set of posters to teach how to find the area of 2D shapes.
Practice finding the area of different shapes with this set of 4 worksheets.
A 70-slide PowerPoint presentation containing a variety of quick warm-up activities.
A 90-slide interactive PowerPoint to use when learning about the attributes of different 2-D shapes.
A worksheet to reinforce your students' understanding of the angle sum of a triangle.
A poster depicting and explaining the four types of triangles.
A poster showing the area formula for different 2-D shapes.
A set of 3 volume worksheets to practice solving using the volume formula.
A 2-D shapes poster with 16 common shapes, as well as information characterizing each shape.