Hope you enjoyed the video!
Thanks for watching!

You have remaining on your free trial.
4 Free Lessons Left
Get unlimited access to all videos and lesson plans with a membership.
So you can keep watching more great videos in class, ask your teacher or principal to get a School plan membership.
We hope you enjoyed trying 5 lessons!
Become a member to get full access to our entire library of learning videos, reading material, quiz games, simple DIY activities & more.
Plans & PricingCreate a free account to continue watching
Welcome to Our New Math Lessons!
Your subscription is currently only to our science lessons.
5 Free Math Lessons Left
Add Math To My Plan (+$50/yr)We hope you enjoyed sampling 5 Math Lessons!
Your subscription is currently only to our science lessons.
Add Math To My Plan (+$50/yr)0 Free Math Lessons Left
Oops! It looks like your security settings are blocking this video 🙁
If you are on a school computer or network, ask your tech person to whitelist these URLs:
*.wistia.com, fast.wistia.com, fast.wistia.net, embedwistia-a.akamaihd.net
Sometimes a simple refresh solves this issue. If you need further help, contact us.
Intro to Addition

Sorry, student links are only for classroom & school accounts.
Please login to generate a student link.
Generate Student Link
- Show lesson plan & teacher guide
- Show answers to discussion questions
- Show video only
- Allow visiting of other pages
- Hide assessments
What you will learn from this videoWhat you will learn
- We’ll learn that addition is putting 2 groups together to find the total.
- That we can add by counting ALL the objects we have, or by starting at one number and counting ON.
- And, we'll explore how this knowledge can help us take care of kittens, eat cupcakes, and even dig for dinosaur bones.
- Discussion Questions
Before Video
How do we find the number of objects we have?ANSWERCount.
7
1
6
6, 7, 8, 9, 10
After Video
Sasha is adding 3 + 2. Show how she would count all to add.ANSWER1, 2, 3, 4, 5
3, 4, 5
7
8
3 + 7 = 10
- Vocabulary
- Addition DEFINE
When one group joins another group to find how many you have all together.
- Counting All DEFINE
Counting how many in all starting with 1 to the total.
- Plus Sign DEFINE
The symbol that means addition, or joining two groups together.
- Equals Sign DEFINE
The symbol that means both sides have the same value.
- Counting On DEFINE
Counting how many in all when adding, starting at one of the numbers being joined, and counting the rest.
- Sum DEFINE
The result of adding.
- Addition DEFINE
- Reading Material
- Practice Word Problems
- Practice Number Problems
- Lesson Plan
- Teacher Guide