Unit Plan
PBS

Pbs: Recognize and Represent Proportional Relationships Between Quantities: Ratio, Proportion, Cross Multiply, Divide

For Students 6th - 8th Standards
In this Cyberchase media gallery, learn about ratio and proportion and how to use an algebraic shortcut to solve proportion problems. In the accompanying classroom activity, students play a game called the "Pom-Pom Nose Push," in which...
Activity
Physics Aviary

Physics Aviary: Vector Math

For Students 9th - 10th Standards
This activity checks that you are able to add and subtract vectors, calculate the dot and cross product of vectors, and multiply or divide vectors by scalars.
Handout
Other

Chili Math: Writing and Identifying Equivalent Fractions

For Students 6th - 8th
Fractions that are the same in value but look different are known as equivalent fractions. As long as you multiply or divide the top and bottom of a fraction by the same nonzero whole number, the resulting fraction will be equivalent to...
Unknown Type
Wyzant

Wyzant: Proportions Basics Worksheet

For Students 9th - 10th Standards
An interactive quiz from WyzAnt of 20 proportions are presented for the students to solve and then check their answers. All can be computed with simple cross-multiplying.
Unknown Type
Shmoop University

Shmoop: Fractions & Decimals: Multiplying Fractions and Mixed Numbers

For Students 9th - 10th Standards
The mathematics resource explores how to multiply fractions and mixed numbers. Students examine the topics through class notes and examples. Practice problems with solutions are available to check for comprehension of the concepts.
Interactive
Calculator Soup

Calculator Soup: Fractions Solve for Unknown X

For Students 9th - 10th
Solve for an unknown value x with this fractions calculator. Find the missing fraction variable in the proportion using cross multiplication to calculate the unknown variable x. Solve the proportion between 2 fractions and calculate the...
Interactive
University of Cambridge

University of Cambridge: Nrich: Game Criss Cross Quiz

For Students 1st - 5th Standards
Use this online game to improve your subtraction or addition skills while you play on a coordinate plane gameboard. Gain skills in two areas at the same time! This game can also be altered to practice multiplication facts. There is a...
Handout
Wolfram Research

Wolfram Math World: Inner Product

For Students 9th - 10th
This site contains links to four kinds of inner products: Dot Product, Hermitian Inner Product, Interior Product, L2-Inner Product.