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# Free 3rd grade math video lessons

This is a collection of free math videos for 3rd grade, showing varied exercises for each topic. They match Math Mammoth Grade 3 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. Please realize this is not a complete coverage of all 3rd grade math, and I hope to add to the collection in the future.

## Chapter 1: Addition & subtraction

Strategies for mental subtraction — two videos from 2nd grade, which fit the review lesson in the beginning of third grade reasonably well.

Mileage chart

The order of operations — parenthesis, addition & subtraction only

## Chapter 2: Multiplication concept

Multiplication on a number line

Multiplication in two ways (multipliation is commutative)

Understanding multiplication word problems, part 1

Understanding multiplication word problems, part 2

The order of operations, part 2 — parenthesis, multiplication, addition & subtraction

## Chapter 3: Multiplication tables

I offer a full list of videos for the multiplication tables, which have been put together on this page.

## Chapter 4: Telling time

Telling time: "past" and "till" (review from 2nd grade)

Elapsed time in minutes

## Chapter 5: Money

Making change by counting up

Word problems with money and change

## Chapter 6: Place Value

Addition and subtraction with 4-digit numbers - mental math

A lesson on estimation - add/subtract 4-digit numbers

## Chapter 7: Geometry

Perimeter

Problems with perimeter

More about area: Area of rectangles and the distributive property

Area units

Problems to solve: area of rectangles

Area and perimeter problems — rectangular shapes

## Chapter 8: Measurement

Measuring to the nearest fourth-inch

Feet, yards, and miles

Common metric units of length

Pounds and ounces (on a kitchen scale)

Grams and kilograms (on a kitchen scale)

Cups, pints, quarts, and gallons

Milliliters and liters

## Chapter 9: Division

The connection between multiplication and division

Divide evenly into groups — basic concept of division

Division versus multiplication word problems

Division by zero

Division with remainders

## Chapter 10: Fractions

Fractions on a number line

Mixed numbers with visual models, and on a number line

Comparing fractions, part 1 (two videos)

Comparing fractions, part 2

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