Unit 4, Lesson 9# More and Less than 1%

Open Up Resources 45 min(s)Support for English Language Learners

Understand a fractional percentage as a fractional rate per 100. Let's explore percentages smaller than 1%. Until now, students have been working with whole number percentages when they solve percent increase and percent decrease problems. As they move towards more complex contexts such as interest rates, taxes, tips and measurement error, they will encounter percentages that are not necessarily whole numbers.