University of Georgia
University of Georgia: Inter Math: Diameter
This site gives a description of the diameter of a circle. There are links to related terms, everyday examples, challenging problems, more information, and the interactive check point involving a circle's diameter located in the...
Technovation
Curiosity Machine: Challenges: Design a Mechanical Pegboard
Are you ready to challenge yourself to make a peg board that lets you test multiple linkage systems and movements? This site contains not only the challenge but a platform to document your process as you solve the problem.
Technovation
Curiosity Machine: Challenges: Build a Talking Truck
On this site, you will find a challenge, a lesson plan, tips, and a place for you to document your engineering design process. Here you are challenged to build a truck that "talks" to alert when there is a problem.
Technovation
Curiosity Machine: Challenges: Make a Root System
Inspire students to make a root system to help a plant stay put with simple materials like pipe cleaners, string, and marbles. This STEM challenge allows students to not only solve a problem but get tips and document their process all on...
Technovation
Curiosity Machine: Challenges: Make a Signal Horn
Build a signal horn to make low-frequency sounds that can be heard from far away in this STEM lesson. Use this interactive site to document your design process. Included on the site is a video explaining a possible solution to the problem.
Khan Academy
Khan Academy: Challenging Add and Subtract Word Problems (Within 100)
Practice solving more challenging addition and subtraction word problems with "more" and "fewer". Multi-step problems are also included. Numbers used are 100 or less. Students receive immediate feedback and have the opportunity to try...
Khan Academy
Khan Academy: Area and Circumference of Circles Challenge
Practice interesting area and circumference problems. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Round Whole Numbers Challenge
More challenging practice problems where you round whole numbers to the nearest hundred or thousand Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
University of Georgia
University of Georgia: Inter Math: Mean
This site from InterMath explains what a mean is and gives an example. Be sure to follow the links to related terms, challenging problems, more information, and the interactive check point involving means located in the left-hand column.
University of Georgia
University of Georgia: Inter Math: Altitude of a Triangle
This site gives a description along with a visual representation of the altitude of a triangle. There are links to related terms, everyday examples, challenging problems, more information, and the interactive check point involving...
Other
Odyssey of the Mind Curriculum Activity: Made Up Math
An interesting way to make math more creative. This page gives ideas for three different exercises that encourage students to use math in a creative way.
University of Georgia
University of Georgia: Inter Math: Dependent Events
This site gives a description of dependent events along with an example. Be sure to follow the links to related terms, everyday examples, challenging problems, more information, and the interactive check point involving dependent events...
University of Georgia
University of Georgia: Inter Math: Cylinder
This site gives a definition and discussion of cylinders including right and oblique cylinders. Be sure to follow the links to related terms, everyday examples, challenging problems, more information, and the interactive checkpoint...
Other
Learn With Math Games: Driving Into Division
Hands-on instructional activity that features a board game to review division facts and practice more challenging division problems.
National Council of Teachers of Mathematics
Nctm: Figure This: Can You Turn a Frown Into a Smile?
This math challenge activity focuses on the concept of morphing. Test your problem-solving aptitude as you try to morph a frown into a smile.
University of Cambridge
University of Cambridge: Nrich: Dominoes
A set of online dominoes shows you how to work out multiplication problems.
PBS
Pbs: Greatest Common Factor
In this video, learn how to find the greatest common factor of two numbers. Then, see how this can be used to solve problems with large numbers. In the accompanying classroom activity, students learn to find prime factors using factor...