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Free math video lessons for 6th grade

This is a collection of free math videos for 6th grade, showing varied exercises for each topic. They match Math Mammoth Grade 6 curriculum but will also work no matter which curriculum you follow (in other words, the videos don't rely on you having Math Mammoth curriculum).

These videos are usable for students, teachers, and parents. You can use them...

• To learn these topics yourself (if you're a student for example, or an adult needing a refresher)
• As lesson plans for teaching these topics. Often, one video from below can be made into several lessons with students.

Please choose a topic from the list.

Introduction to algebra

What are expressions and how to evaluate them

Write expressions from word phrases

Expressions: length and perimeter

Expressions: area

The distributive property

Factoring linear expressions

Introduction to equations

Introduction to inequalities

Introduction to equations with two variables

Decimals

Review lesson for 6th grade math: fractions and decimals

Multiplying decimals by decimals: the shortcut

Long division with decimals, plus fractions to decimals

Convert fractions to decimals

Divide decimals by decimals

Convert metric units

Convert customary units

Convert between customary and metric units of measurement

Fractions and decimals word problem: unit prices

Ratios

Unit rates

Word problems involving unit rates

How to use ratios to convert measurement units

Percent

What is "percent"?

What percentage / How many percent...?

How to find a percentage of a number — mental math

How to calculate discounts

Number theory

The sieve of Eratosthenes (for finding primes)

Prime factorization

Greatest common factor

Least common multiple

Fractions

Multiplying mixed numbers

Simplifying before multiplying

How to divide fractions & reciprocal numbers

Reciprocal numbers and the shortcut for fraction division

Fraction division: concept and applications

Problem solving: four word problems involving fractions

Integers

Introduction to integers

How to plot points on the coordinate grid

The coordinate grid: word problems & applications

Add and subtract integers on a number line

Subtract a negative integer: three models

Graphing linear patterns in the coordinate grid

Geometry

Area of parallelograms and triangles

Find the area of a triangle by drawing and measuring the altitude

Area of polygons

Introduction to conversions between units of area

Volume of rectangular prism with fractional edge length

Statistics

Understanding statistical variability and distributions

Mean, median, and mode

Measures of variation

How to make a histogram

How to make a boxplot

Stem-and-leaf plots

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