Common Core Math - Grade 7
Lesson Plan
Use proportional relationships to solve multistep ratio and percent problems
Goals / Objectives
Identify the type of percent problem (percent of a quantity, percent increase/decrease, percent error) and select the appropriate proportional relationship to model it
Solve problems involving tax, tips, markups, markdowns, commissions, and fees by computing a percent of a base amount and combining with the original quantity
Calculate simple interest using the formula I = prt and interpret each variable in context
Compute percent increase and percent decrease using the relationship (change / original) x 100
Calculate percent error as |measured - actual| / actual x 100 and interpret it in context
Solve multistep problems by chaining proportional relationships, tracking intermediate quantities, and assessing the reasonableness of final answers
Standards
7.RP.A.3
7.RP.A.3: Use proportional relationships to solve multistep ratio and percent problems. Examples: simple interest, tax, markups and markdowns, gratuities and commissions, fees, percent increase and decrease, percent error.
Academic Vocabulary
Not in our source material
Materials
Enrichment
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