Interactive
CK-12 Foundation

Percent of a Number: Acid Solution

For Students 6th - 8th Standards
Mathematicians answer five questions about percents, ratios, and proportions with help from an interactive graduated cylinder. Question types include multiple-choice, fill-in-the-blank, and discussion. 
Worksheet
Curated OER

Fraction Addition (Level 2)

For Students 5th
For this fraction addition worksheet, 5th graders add to solve the fraction 15 equations. Students solve equations with and without common denominators.
Interactive
CK-12 Foundation

Complement Rule for Probability: Changes in an Election

For Students 7th - 12th Standards
Pupils determine the probability of one mayoral candidate winning given the other's chance. The interactive provides a circle graph to help visualize each candidate's percentages of winning.
Interactive
Curated OER

Dividing Integers

For Students 4th - 6th
In this integer division worksheet, students evaluate 10 integer expressions. Answers and hints are available on-line; a reference web site for additional resources is given.
Lesson Plan
Curated OER

Extreme Elevations

For Teachers 7th
Seventh graders use highest and lowest points of land elevation around the world to find the differences. Sea level is zero, so students be operating with positive and negative numbers. After students find the information on the...
Lesson Plan
Curated OER

Jazz and Math: Rhythmic Innovations

For Teachers 9th - 12th
High schoolers compare and contrast the rhythms of marches and jazz. They watch an excerpt about Buddy Bolden from the PBS Ken Burns Jazz documentary, compare/contrast march and jazz rhythms, complete a worksheet, and notate and perform...
Lesson Plan
Curated OER

Company is Coming

For Teachers 5th - 7th
Students find a recipe for pancakes on the web then figure out how to half the recipe then figure how to make 3/4 of the pancakes.
Interactive
Quia

Quia: Equivalent Fractions

For Students 3rd - 6th Standards
Use this Web site to practice finding equivalent fractions using a matching game format. CCSS.Math.Content.3.NF.A.3.a Understand two fractions as equivalent (equal) if they are the same size, or the same point on a number line.

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