Interactive
Starfall

Starfall: I Have Six Dollars

For Students Pre-K - 1st
This video is a math song about having six dollars and a countdown of how it was spent.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Completing the Addition Sentence Sums to 20

For Students 2nd - 4th
[Free Registration/Login may be required to access all resource tools.] The video shows how to count backwards to determine the missing number in an addition problem. The video is followed by practice problems to assess student...
Lesson Plan
Alabama Learning Exchange

Alex: Getting Froggy Wih It

For Teachers 1st - 2nd Standards
Young scholars will solve problems using a number line. Students will work collaboratively to create a "Town" with the main street consisting of a number line diagram. They will practice counting forwards and backwards, measuring and...
Activity
University of Cambridge

University of Cambridge: Nrich: Routes 1 and 5

For Students 3rd - 8th Standards
Sharpen your logic and basic arithmetic skills while working on this challenge. Solution.
Interactive
University of Cambridge

University of Cambridge: Nrich: Game Wild Jack

For Students Pre-K - 1st
This math game is great for practice using all the operations: addition, subtraction, multiplication, and division. All you need is a deck of regular playing cards. Just follow the directions and you are in business.
Activity
Purple Math

Purplemath: Finding Quadratics From Their Zeroes

For Students 9th - 10th Standards
Students often have difficulty "working backwards" from the solution of a problem to its original question. Finding a polynomial, given its roots, is an example of a "working backwards" problem. Here are several examples using different...
Unit Plan
E-learning for Kids

E Learning for Kids: Math: Riksjas, Toek Toek: Subtraction

For Students Pre-K - 1st Standards
Learn how subtraction works with Som the Tuk Tuk driver.
Lesson Plan
Better Lesson

Better Lesson: Start At/stop At

For Teachers 1st Standards
SWBAT practice the rote counting sequence both forwards and backwards, from 1-30. SWBAT use a number line as a tool for counting. SWBAT count sets of objects up to 20.
Activity
NOAA

Noaa: Northeast Fisheries Science Center: Fish Faq

For Students 9th - 10th
This site is provided for by the Northeast Fisheries Science Center. Do fish sleep? Do they chew food? Can any fish swim backwards? How many Pinnipeds are on the Endangered Species List? Find out the answers to these questions and many...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Rainbow Number Line

For Teachers K - 1st Standards
The teacher will prepare number lines for the students to trace. These number lines can be taped to the desk to be used for number recognition, sequencing, counting, "number forward", and "number backward" activities. An example is...

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