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# Free 1st grade math video lessons

This is a collection of free math videos for 1st grade, showing varied exercises for each topic. You can view them here on my site or at my YouTube channel (www.youtube.com/user/mathmammoth). The videos match Math Mammoth Grade 1 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.

## Chapter 1: Addition of single-digit numbers

Learn to write sums with + and =

Compare numbers and sums

Addition facts within 10 — six video lessons

## Chapter 2: Subtraction and related concepts

Fact families

The concept of "how many more"

"How many more" problems and difference

## Chapter 3: Place value

The "teen" numbers

Naming and writing 2-digit numbers

Add and subtract whole tens (e.g. 20 + 70 or 80 − 40)

Bar graphs

## Chapter 4: Addition & subtraction facts

Addition and subtraction facts with 6 (fact families)

Addition and subtraction facts with 7 (fact families)

Addition and subtraction facts with 8 (fact families)

Addition and subtraction facts with 9 (fact families)

## Chapter 5: Time

Tell the time — whole and half hours

AM and PM (morning and afternoon) hours

## Chapter 6: Shapes and Measuring

Measuring length: whole inches

Measuring length — whole centimeters

Basic shapes

Halves, quarters — and thirds too!

## Chapter 7: Addition and subtraction of two-digit numbers

"Make ten" (and go over ten) strategy for addition

Add a 2-digit number and a single-digit number mentally - no regrouping

Add and subtract 2-digit numbers without regrouping

Mental math trick with nine and eight

Pictographs

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### "Mini" Math Teaching Course

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- Troubles with word problems
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- Should you use timed tests
- And more!

A GIFT of over 400 free worksheets and sample pages from my books right in the very beginning. A monthly collection of math teaching tips & Math Mammoth updates (unsubscribe any time)