Common Core Math - Grade 7
Lesson Plan
Know the formulas for the area and circumference of a circle and use them to solve problems
Goals / Objectives
State the formula for circumference (C = pid = 2pir) and identify what each variable represents
State the formula for area of a circle (A = pir^2) and identify what each variable represents
Compute circumference and area given radius or diameter, using both exact (pi) and approximate answers
Informally describe why C = pid using the definition of pi as C/d
Solve real-world problems involving circumference and area of circles
Distinguish between circumference (a linear measure) and area (a square measure) and select the appropriate formula for a given context
Standards
7.G.B.4
7.G.B.4 -- Know the formulas for the area and circumference of a circle and use them to solve problems; give an informal derivation of the relationship between the circumference and area of a circle.
Academic Vocabulary
Not in our source material
Remediation
This lesson’s brief has no prerequisite standards
Enrichment
This lesson’s brief has no Differentiation
Accommodations
Not in our source material
Anticipatory Set / Bell Work
Modeling
Check for Understanding
This lesson’s brief has no Formative Assessment or Assessment Ideas