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CCSS Math 8.NS - Number Sense or The Number System by
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# CCSS Math 8.NS - Number Sense or The Number System

A PDF of this mind map is attached. And then the QR code at the top will be scannable from the printed copy.

## 8.NS.2: Use rational approximations of irrational numbers to compare the size of irrational numbers, locate them approximately on a number line diagram, and estimate the value of expressions (e.g., π^2).

### F.15: Exponents and roots: Estimate positive and negative square roots

Practice on IXL (S)

### F.19: Exponents and roots: Estimate cube roots

Practice on IXL (S)

### CCSS Math 8.NS.2 (T,S)

Internet Resources (Videos, Websites, etc.) For students and teachers

MasteryConnect 8.NS.2 (T), ExamView Dynamic Questions (T), Clicker questions (T)

## 8.NS.1: Know that numbers that are not rational are called irrational. Understand informally that every number has a decimal expansion; for rational numbers show that the decimal expansion repeats eventually, and convert a decimal expansion which repeats eventually into a rational number.

### D.1 Rational numbers: Identify rational and irrational numbers

Practice (S), Tutorial video (Khan Academy): Rational and Irrational Numbers (S)

Practice (S)

### CCSS Math 8.NS.1 (T,S)

Internet Resources (Videos, Websites, etc.) For students and teachers

MasteryConnect 8.NS.1 (T), ExamView Dynamic Questions (T), Clicker questions (T)