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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.
Practice identifying the attributes of different 2D shapes with this 90-slide interactive PowerPoint.
Practice finding the area of different shapes with this set of 4 worksheets.
A 2-D shapes poster with 16 common shapes, as well as information characterizing each shape.
Find the area of 16 triangles on the board and match the corresponding pieces to reveal a mystery picture.
A poster showing the area formula for different 2-D shapes.
Practice applying math formulas with this area of a triangle worksheet.
Practice finding and comparing the area of a triangle with a game of WAR!
Use this set of posters to teach how to find the area of 2D shapes.
A poster depicting and explaining the four types of triangles.
A set of 3 volume worksheets to practice solving using the volume formula.
Practice calculating the volume of rectangular prisms with this Google Slides interactive activity.
Practice how to find the volume of composite figures with this interactive activity.
Calculate the volume of composite figures and solve real-world problems with this worksheet.
Practice finding the volume of rectangular prisms with a “This or That” worksheet.
Practice finding the volume of rectangular prisms and cubes with this set of differentiated worksheets.
A 70-slide PowerPoint presentation containing a variety of quick warm-up activities.
A worksheet to reinforce your students' understanding of the angle sum of a triangle.