Interactive
Khan Academy

Challenge: Parting Clouds

For Students 6th - Higher Ed
Let the sun shine as your young coders move the clouds across the sky while practicing animation coding skills in JavaScript. Younger learners may benefit from more guided help or a whole-class discussion before trying this coding...
Interactive
Khan Academy

Challenge: My Favorite Foods

For Students 6th - Higher Ed
Create a list of your favorite foods while you practice writing text in JavaScript. Use fill, textSize, and text functions. This is a quick activity that helps solidify basic skills. Expand with additional challenges...
Lesson Plan
Illustrative Mathematics

How Many Cells Are in the Human Body?

For Teachers 9th - 11th Standards
Investigating the large numbers of science is the task in a simple but deep activity. Given a one-sentence problem set-up and some basic assumptions, the class sets off on an open-ended investigation that really gives some...
Activity
Curated OER

Scale Activities

For Teachers 7th - Higher Ed Standards
How do you put something as large as the universe in perspective? Use a series of scale experiments. Classmates collaborate around four experiments to examine the scale of the earth-moon system, our solar system, the Milky Way galaxy,...
Lesson Plan
Illustrative Mathematics

Rectangle Perimeter 1

For Teachers 5th - 7th Standards
Creating an expression to represent the perimeter of a rectangle is a fundamental beginning skill in learning how to use and define variables. This activity starts with the basics and can be followed up with additional tasks. 
Activity
Curated OER

Area of the Lawn Project

For Teachers 7th - 9th
Students calculate simple area calculations in real-life situations. They determine simple wage computations. They use critical thinking skills. They demonstrate their ability to use writing in order to express mathematical thoughts and...
Activity
Teaching Treasures Publications

Teaching Treasures: Year Five Math (Page 2)

For Students 3rd - 8th Standards
Use this interactive worksheet for practice or assessment of basic computation skills. Problems covering all four operations are included such as four-digit addition and subtraction and multiplication and division facts through twelve...
Activity
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: The Multiplication Table

For Students 3rd - 5th
This multiplication table has multiplication facts through 9 X 9 and also lets students practice them.
Activity
Texas Instruments

Texas Instruments: Number and Operation Sense: Whole Numbers

For Teachers Pre-K - 1st Standards
In this activity, students attain a basic understanding of numbers and number operations, developing number sense, and gaining fluency in arithmetic computation. They also learn to use the calculator to explore the mathematical...
Activity
Texas Instruments

Texas Instruments: Mad Minutes

For Teachers 9th - 10th
This activity should help kids to perform quick computations using mental math, become less reliant on calculators for computation, and remember algorithms for common math problems by using repetition and practice.
Activity
National Council of Teachers of Mathematics

Ntcm: Math Challenge: Perplexing Percentages

For Students 3rd - 8th
Test your bargin shopping skills by figuring out which discount offers the greatest savings. A one page activity from the NCTM Math Challenges for Families series that focuses on understanding and calculating percentages. Connections...
Activity
National Council of Teachers of Mathematics

Nctm: Figure This: How Much Time Do Teens Spend on the Job?

For Students 3rd - 8th
Try this math challenge where you investigate the average number of hours teen actually spend working. Apply your problem solving, number sense, and computation skills in this one page activity from the NCTM Math Challenges for Families...
Activity
Teaching Treasures Publications

Teaching Treasures: Year Two Math (Page 1)

For Students Pre-K - 1st Standards
Improve your computation skills using this interactive worksheet. Review two digit addition and subtraction facts. This worksheet gives students immediate feedback and is a suitable tool for short assessments or independent practice.
Activity
Scholastic

Scholastic: Math Maven's Mysteries: The Case of the Hatcher Hotel Heist

For Students K - 1st Standards
Help Math Maven solve this mystery! Items are missing from several hotel rooms, but some addition and subtraction clues have been left behind. Use your skills to figure out where the thief will strike next!
Activity
Math Slice

Math Slice: Math Crossword Slice Special Test

For Students Pre-K - 1st Standards
Use this interactive math crossword puzzle to build number sense skills. Simply fill in the missing numbers based on the operation. Immediate feedback given to responses.
Activity
NumberNut

Number Nut: More Than Two Addends

For Students 3rd - 5th
Develop strategies for adding more than two addends with this quick addition lesson. Examine how grouping numbers can help make adding multiple numbers easier. Then, practice your new skills using the related interactive games that are...
Activity
University of Cambridge

University of Cambridge: Nrich: Sealed Solution

For Students Pre-K - 1st Standards
On this one page website sharpen your logic and addition facts skills while working on this challenge. The solution is available to double check your solution.
Activity
University of Cambridge

University of Cambridge: Nrich: One Big Triangle

For Students Pre-K - 1st Standards
On this one page website sharpen your logic and addition facts skills while working on this challenge. The solution is available to double check your solution.
Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Movie Money

For Students 3rd - 6th
Do movie theaters make lots of money? You can find out when you try this math challenge that explores profit and loss in the theater industry. Discover why understanding problem solving, percent, and basic calculations are essential in...
Activity
Teaching Treasures Publications

Teaching Treasures: Year Three Math (Page 1)

For Students Pre-K - 1st Standards
Sharpen your mathematical skills with this interactive worksheet that combines two-digit addition, two-digit subtraction, and basic multiplication facts. This activity is easy to grasp and gives learners immediate feedback to their...
Activity
University of Cambridge

University of Cambridge: Nrich: Games Pelmathism, Multiplication

For Students Pre-K - 1st
Use this game to improve your quickness and memorization of multiplication facts. You can set the facts you want to practice on this game.
Activity
Scholastic

Scholastic: Max's Math Adventures: Farmer Fred's Counting Farm

For Teachers 3rd - 5th
Add and rhyme with Farmer Fred, then use the activity sheet to work through some more farm addition. The teacher's guide and extra challenges will be helpful in lesson planning.
Activity
NumberNut

Number Nut: Operations a Distinct Process

For Students 3rd - 8th Standards
Sharpen your computation and problem solving skills with this lesson that focuses on order of operations. Related vocabulary and detailed examples also provided.
Activity
Scholastic

Scholastic: Max's Math Adventures: Card Castle Addition

For Teachers 3rd - 5th
Use this site to see how Max and Ruthie built a castle inside Max's room! Teachers will want to look through the extra challenges and the teacher's guide to help with creating engaging lesson plans.