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
Mental addition — several strategies explained
Review: mental subtraction — several strategies explained
More mental subtraction — more strategies explained
More mental subtraction: Unknown in an addition or subtraction
More mental addition (3-digit numbers)
Mental subtraction with three-digit numbers
(An older video about mental addition and subtraction with 3-digit numbers, also available from a non-YT platform)
Regrouping twice in subtraction
Regrouping in subtraction with zero tens
Three-digit subtraction word problems and a puzzle
The connection with addition and subtraction
The order of operations — parenthesis, addition & subtraction only
Chapter 2: Multiplication concept
Multiplication on a number line
Multiplication in two ways (multiplication is commutative)
Understanding multiplication word problems, part 1
Understanding multiplication word problems, part 2
The order of operations, part 2 — parentheses, 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)
Using a calendar (future or past dates)
Chapter 5: Money
Word problems with money and change
Chapter 6: Place Value
4-digit place value (thousands) and expanded form
Addition and subtraction with 4-digit numbers — mental math
Rounding 3 and 4-digit numbers to the nearest hundred
Add and subtract 4-digit numbers — a lesson on estimation
Chapter 7: Geometry
More about area: Area of rectangles and the distributive property
Problems to solve: area of rectangles
Area and perimeter problems — rectangular shapes
Chapter 8: Measurement
Measuring to the nearest fourth-inch
Pounds and ounces (on a kitchen scale)
Grams and kilograms (on a kitchen scale)
Cups, pints, quarts, and gallons
Chapter 9: Division
The connection between multiplication and division
Divide evenly into groups — basic concept of division
Division versus multiplication word problems
Chapter 10: Fractions
Mixed numbers with visual models, and on a number line
Comparing fractions, part 1 (two videos)
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