Q3W9 6th Grade Math

TeacherKimberlie Hymes
Subject AreaMath
Grade Level6th
Week #27
Unit of InstructionGeometry
Standard(s) Taught


Find 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.

Learning Targets and Learning Criteria

• show the area formula for a parallelogram by composing it into rectangles.
• justify the area formula for a right triangle by viewing the right triangle as part of a rectangle composed of two right triangles.
• show the area formula for a triangular region by decomposing a triangle into right triangles. For a given triangle, the height of the triangle is the length of the altitude. The length of the base is either called the length base or, more commonly, the base.
• understand that the height of the triangle is the perpendicular segment from a vertex of a triangle to the line containing the opposite side. The opposite side is called the base.
• understand that any side of a triangle can be considered a base and that the choice of base determines the height.
• deconstruct triangles to justify that the area of a triangle is exactly one half the area of a parallelogram.
• find the area for a trapezoid by decomposing the region into two triangles. I can decompose rectangles to determine the area of other quadrilaterals.
• determine the area of composite figures in real-life contextual situations using composition and decomposition of polygons.
• determine the area of a missing region using composition and decomposition of polygons.

Classroom Activities

We will be beginning our Geometry unit this week and learning about the area of shapes. We will be completing a number of activities to practice the above standards including in class practice, rotation stations, and notebook activities. 

Assignments Due

This is the last week of the quarter before spring break. Please check gradebook and make sure all assignments are completed before Friday 3-9-18.


Happy Spring Break!

Additional Resources

Students are able to complete additional practice on both MathSpace and IXL



Teacher Contact information:


REMIND: ih6math

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