Shodor Education Foundation
Shodor Interactivate: Modular Arithmetic
Introduces students to modular (clock) arithmetic and its uses in real world problem-solving.
Intel Corporation
Intel: Fractions Made Visual
Students learn the importance of math accuracy and, more specifically, that knowing how to add, subtract, multiply, and divide fractions make life easier for everyone. To help students come to this understanding, they are assigned to a...
National Council of Teachers of Mathematics
Nctm: Figure This: Body Mass What's Your Index? (Pdf)
If you like tackling formulas, then this math challenge is for you. See if you can calculate Helix's BMI (body mass index) and find out if his health is at risk. A one page NCTM Math Challenges for Families activity that engages learners...
Khan Academy
Khan Academy: Units
In this exercise, students solve word problems that involve using different units. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
CK-12 Foundation
Ck 12: Algebra: Mixed Numbers in Applications
[Free Registration/Login may be required to access all resource tools.] Solve real-world problems that involve multiplying and dividing real numbers.
CK-12 Foundation
Ck 12: 2.5 Simple Rational Models
This section draws on previous sections that explored how to add, subtract, multiply, and divide rational numbers in order to solve real-world problems involving rational equations. It explores how to apply these procedures in order to...
NumberNut
Number Nut: Breaking Down Fractions
Discover fractions in the world around us in this lesson that also examines how fractions are divided. Detailed examples and pictures presented to explain this concept along with key vocabulary. A brief introduction to problem solving...
Khan Academy
Khan Academy: Multiply Fractions and Whole Numbers Visually
Use area models, number lines, and tape diagrams to multiply a whole number times a fraction. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.