Measurement
Grade 8 Measurement---circles and cylinders
Overall Expectation:
8m31 determine the relationships among units and measurable attributes, including the area of a circle and the volume of a cylinder.
Specific Expectations:
8m33 solve problems that require conversions involving metric units of area, volume, and capacity (i.e., cm2 and m2; cm3 and m3; mm3 and cm3);
8m35 determine, through investigation using a variety of tools (e.g., cans and string, dynamic geometry software) and strategies, the relationships
for calculating the circumference and the area of a circle, and generalize to develop the formulas [i.e., Circumference of a circle = x diameter;
Area of a circle = x (radius)2];
8m36 solve problems involving the estimation and calculation of the circumference and the area of a circle.
Learning Goals: We are learning to calculate the perimeter of a circle using pi, diameter and/or radius.
We are learning to calculate the area of a circle using pi, diameter, radius and/or circumference.
We are learning to solve problems involving area and perimeter of circles using pi, diameter, radius and/or circumference.
Success Criteria: I will know I am successful when:
• I can calculate perimeter of a circle using a variety of strategies and tools;
• I can calculate area of a circle using a variety of strategies and tools;
• I can solve problems involving area and perimeter of circles.
Lesson: Review the definitions of and relationships between diameter, radius, circumference, and Pi.
Consolidation Activity: Students will complete the “Toilet Paper Role Challenge”.
Grade 8 Geometry and Measurement Unit Task
This page includes the problem as well as the success criteria checklist.
This page includes the problem as well as the success criteria checklist.