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CK-12 Foundation
Percent of a Number: Acid Solution
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.
Curated OER
Fraction Addition (Level 2)
For this fraction addition worksheet, 5th graders add to solve the fraction 15 equations. Students solve equations with and without common denominators.
CK-12 Foundation
Complement Rule for Probability: Changes in an Election
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.
Curated OER
Dividing Integers
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.
Curated OER
Extreme Elevations
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...
Curated OER
Jazz and Math: Rhythmic Innovations
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...
Curated OER
Company is Coming
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.
Quia
Quia: Equivalent Fractions
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.