MA19.7.8

Mathematics (2019) Grade(s): 7

MA19.7.8
Solve multi-step real-world and mathematical problems involving rational numbers (integers, signed fractions and decimals), converting between forms as needed. Assess the reasonableness of answers using mental computation and estimation strategies.

Unpacked Content

Knowledge

Students know:

techniques for converting between fractions, decimals, and percents.
Techniques for estimation, mental computations, and how to assess the reasonableness of their answers.

Skills

Students are able to:

convert between different forms of a rational number.
Add, subtract, multiply and divide rational numbers.-translate verbal forms of problems into algebraic symbols, expressions, and equations.
Use estimation and mental computation techniques to assess the reasonableness of their answers.

Understanding

Students understand that:

One form of a number may be more advantageous than another form, based on the problem context.
Using estimation strategies helps to determine the reasonableness of answers.

Vocabulary

Rational numbers
Integers
Estimation

Aligned Learning Resources

Exploring First-Person Narrative | The Great American Read

Exponential Growth

Expressions with Rational Numbers and Solving Problems with Rational Numbers

Casey Runner: Adding and Subtracting Positive and Negative Numbers

A Trick for Adding and Subtracting Negative Numbers

Bookstore Account: Adding and Subtracting Positive and Negative Numbers

Using Number Lines to Model Real-World Problems

Adding Integers Using Two-Color Counters

Multi-Step Real-Life and Mathematical Problems Introduction

Multi-Step Real-Life and Mathematical Problems Lesson

Multi-Step Real-Life and Mathematical Practice Problems

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