Illustrative Mathematics
Archimedes and the King's Crown
Learners will shout "Eureka!" in this quick but deep activity replicating the famous bathtub experiment of Archimedes. Given the scenario of a king with a suspected fake crown, young investigators develop formulas using density to...
Curated OER
Coconut and Chocolate Chip Passover Macaroons
Recipies are a natural medium for using fractions in real-world problems. This delicious activity has learners adapting the ingredients for coconut and chocolate chip macaroons, a Passover treat, for fewer and more cookies than the...
Computer Science Unplugged
Card Flip Magic—Error Detection and Correction
I can find the error in an array of cards? After watching a demonstration class members search for the error is the provided cards. The resource provides a real-life example of using ISBN numbers in error detection and using check sums.
Curated OER
Systems of Equations
Students solve systems of equations. In this algebra lesson, students use elimination and substitution to solve for the point of intersection. They use graphing to see where the two lines intersect.
Curated OER
Punch Mix-up
Fifth graders discuss the relationship between equivalent fractions, ratios, and proportions. In this fraction lesson, 5th graders answer questions about a punch mixture in order to find the ratio of ingredients.
Curated OER
Expansion of Single Brackets
In this expanding brackets worksheet, students read through an explanation of expanding brackets in mathematical equations and then complete 10 practice problems. Students then complete 58 problems in which they need to work through...
Curated OER
Gold Rush California and its Diverse Population
Students compare contemporary cultural differences with historical differences based on population percentage. In this cross-curriculum Gold Rush/math lesson plan, students analyze aspects of California's Gold Rush population and...
Virginia Department of Education
Give or Take a Few
Young mathematicians extend their knowledge of rational numbers on a number line to graph inequalities by first using number cards to compare rational numbers. They finish by using similar reasoning to graph inequalities on a number line.
Curated OER
Blue
Students follow directions for a simple chemical experiment. They use the appropriate tools and techniques to gather, analyze, and interpret data. Students identify a substance that has characteristic properties, such as density, a...
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Mixture Problems
This site give a lesson plan on mixture problems. The lesson is a hands on learning experience for the students. Students mix yellow and red beads and determine the final percent of yellow and red beads in the mixture.
CK-12 Foundation
Ck 12: Algebra: Mixture Problems
[Free Registration/Login may be required to access all resource tools.] Learn how to solve mixture problems.
CK-12 Foundation
Ck 12: Algebra: Mixture Problems
[Free Registration/Login may be required to access all resource tools.] Learn how to solve mixture problems.
CK-12 Foundation
Ck 12: Algebra: Mixture Problems
[Free Registration/Login may be required to access all resource tools.] Solve problems that deal with a mixture of two things using the substitution method.
Department of Defense
Do Dea: Algebra 1: Semester 1: Equations
A learning module through which students learn about equations including the following: Translating words into equations and equations into words, The Properties of Equality to help solving equations, Techniques for solving simple...
Lawrence Hall of Science
The Math Page: Skill in Algebra: Word Problems That Lead to Simultaneous Equations
Here is a site that clearly and thoroughly explains how to solve word problems that lead to systems of equations, such as mixture, coin, investment, and upstream/downstream problems. There are example problems solved, problems for the...
Texas A&M University
Wtamu Virtual Math Lab: Beginning Algebra: Further Problem Solving
You'll learn how to use Polya's four-step process to solve problems involving simple geometry concepts, distance, mixtures, and interest. This tutorial offers several example problems as well as practice exercises for you to complete.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: High School Basic Algebra Review
An overview of basic high school algebra topics can be found here. Absolute value, signed numbers, inequalities and equations, mixture problems, and direct and indirect variation are all listed, each with links to questions posed by...