Course: H.S. Quantitative Reasoning

 

QR.N.2

Solve problems involving calculations with percentages and interpret the results, such as calculating percentage rates or differentiating between a discount of 30% and two consecutive discounts of 15%. Calculate relative change and explain how it differs from absolute change. Recognize incorrect or deceptive uses of percentages.

I Can Statements Academic Vocabulary

*I can solve problems involving percentages.

*I can interpret the results of problems computed with percentages.

*I can calculate percentage rates.

*I can differentiate between a single discount and two consecutive discounts.

*I can calculate relative change.

*I can explain the difference between relative change and absolute change.

*I can recognize incorrect or deceptive use of percentages.

Relative change
Absolute change

Looking Back Looking Ahead

*Use proportional relationships to solve ratio and percent problems with multiple operations, such as the following: simple interest, tax, markups, markdowns, gratuities, commissions, fees, conversions within and across measurement systems, percent increase and decrease, and percent error. (MA.7.C.6)

*Solve real-world problems with rational numbers by using multiple operations. (MA.8.C.1)

*This course is a 4th year course in the Indiana sequence. The concepts and skills within the course extend to multiple post-secondary pathways and applications.

Clarifying Examples and Digital Resources
Click here for clarifying examples and digital resources aligned to Indiana standards. These are intended to expand each standard to support instruction in the classroom as evidenced by the Eight Mathematics Teaching Practices put forth by the National Council of Teachers of Mathematics (NCTM).