Ch 20: 6th-8th Grade Math: Roots & Radical Expressions

The video lessons in this chapter on roots and radical expressions teach students how to solve for square roots, cubic roots, and other radicals when simplifying mathematical expressions. As a part of these engaging video lessons, students can work out examples and take lesson quizzes to help them master the material.

6th-8th Grade Math: Roots & Radical Expressions - Chapter Summary

This chapter uses a series of video lessons taught by expert instructors to educate students on how to work with roots and radical expressions. These video lessons consist of lectures and example problems students can work on with the instructors. Along with the lessons, students can take short quizzes to help them retain the material presented. Some of the topics that will be covered include: finding square and cube roots, identifying radicands, and other mathematical operations used when simplifying radical expressions.

Chapter Lessons and Objectives

Lesson Objective
How to Find the Square Root of a Number Instructors in this video lesson teach students how to find the square roots of numbers.
Estimating Square Roots This video lesson shows students how to estimate the square roots of numbers.
Simplifying Square Roots When not a Perfect Square Instructors demonstrate how to find the square root of a number when the number is not a perfect square.
Simplifying Expressions Containing Square Roots This lesson explains how to use square roots when simplifying expressions.
Radicands and Radical Expressions Instructors define radicands, show how to find the radicand of a radical expression and how to determine if the solution is a real number.
Evaluating Square Roots of Perfect Squares This video lesson shows how to simplify radical expressions with a perfect-square radicand.
Factoring Radical Expressions Instructors in this video review the product rule of radicals and how to multiply with radical notations.
Simplifying Square Roots of Powers in Radical Expressions This video lesson teaches students how to simplify radical expressions when the radicands are powers.
Multiplying then Simplifying Radical Expressions Instructors demonstrate how to multiply radical expressions when simplifying.
Dividing Radical Expressions This video lesson shows how to divide radical expressions when simplifying.
Simplify Square Roots of Quotients Instructors teach students how to simplify square roots of quotients.
Rationalizing Denominators in Radical Expressions Instructors in this video lesson show how to rationalize denominators in radical expressions.
Addition and Subtraction Using Radical Notation This video lesson teaches students how to use distributive laws to simplify radical expressions, adding and subtracting radical notations.
Multiplying Radical Expressions with Two or More Terms This lesson explains how to multiply expressions with radicals, some with multiple terms.
Solving Radical Equations: Steps and Examples Instructors teach the principle of squaring once, and how to use it when solving radical equations with one or two isolated radical terms.
Solving Radical Equations with Two Radical Terms This video lesson demonstrates the principle of squaring twice when solving radical equations with two radical terms.
How to Find the Cube Root of a Number Instructors in this video lesson show students how to find the cube roots of numbers.

17 Lessons in Chapter 20: 6th-8th Grade Math: Roots & Radical Expressions
Test your knowledge with a 30-question chapter practice test
Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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