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Lesson Plan
Curated OER

Rational Expressions

For Teachers 9th - 11th
Learners simplify rational expressions. In this algebra lesson, students solve rational equations using multiplication and division. They apply properties of exponents and negative exponents to solve the problems.
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Lesson Plan
Curated OER

Ratios, Proportions, and Cross-multiplication

For Teachers 6th - 8th
Middle schoolers use cross-multiplication to find the unknown respiration rate of an astronaut. In this multiplication lesson plan, students also use the same process to find missing values in proportions.
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Worksheet
Curated OER

Area and Perimeter

For Students 4th - 5th
In this area and perimeter worksheet, students complete a set of 6 problems, finding area of rectangles and area and perimeter of squares. 
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Lesson Plan
Curated OER

Tortillas

For Teachers 6th - 8th
Students convert recipes for tortillas. They calculate the amounts of ingredients as they convert recipes and write an explanation of the task to demonstrate their calculations. After reviewing their calculations, they demonstrate how...
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Lesson Plan
Curated OER

My Dogs

For Teachers 2nd - 5th
Students use the properties of multiplication to solve problems. They recall the basic multiplication facts as well as write and solve problems that involve whole numbers.
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Lesson Plan
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Squirt

For Teachers 4th
Fourth graders using the idea of "how many more squirts" fill a container to develop multiplicative thinking. They also investigate the idea of conservation of volume when working with oddly shaped containers. They attempt to use...
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Lesson Plan
Curated OER

Rabbits

For Teachers 3rd - 5th
Students review what they think doubling means and double numbers mentally, for example, 5, 12, 16. They share their solutions and discuss how they doubled. They work together on a problem that is beyond mental working and solve...
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Lesson Plan
Curated OER

Team Puzzles

For Teachers 4th
Fourth graders work in co-operative teams of four to complete a puzzle. Each student initially works independently, and then the team jointly puts together the four shapes they have individually made, to complete the puzzle.
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Lesson Plan
Curated OER

Two-Step Equations

For Teachers 9th - 12th
Young scholars explore the concept of solving two-step equations. In this solving two-step equations instructional activity, students watch a short video about solving equations. Young scholars view a PowerPoint presentation about...
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Worksheet
Curated OER

Rational Expressions

For Students 11th
In this Algebra II worksheet, 11th graders simplify rational algebraic expressions by factoring and cancelling the common factors.  The two page worksheet contains instruction, worked examples, and three practice problems.  Answers are...
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Lesson Plan
Curated OER

Eating on a Budget

For Teachers 5th - 6th
Young scholars are "given" $25.00 to spend at a restaurant. Using the Internet, they must "order" a complete 4 course meal while staying within their budget.
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Lesson Plan
Curated OER

Million Dollar Gift

For Teachers 3rd
Third graders create a box big enough to hold a million dollars. This is a project fun to do near the winter holidays with inexpensive gifts included in the boxes. This hands-on instructional activity very effectively demonstrates the...
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Lesson Plan
Curated OER

Escape Velocity

For Teachers 9th - 12th
Students compute minimum velocity, using square roots.
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Lesson Plan
Curated OER

Comparing Candy Bars

For Teachers 8th
Eighth graders identify that a ratio is a comparison of two numbers and that a proportion is an equation that equates two ratios. They identify the extremes and means of proportions, as well as the product of the extremes equals the...
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Lesson Plan
Curated OER

Discovering the Area and Perimeter of Triangles

For Teachers 8th
Eighth graders identify how to find the area and perimeter of rectangles and triangles. They discuss their understanding of area and perimeter and how the two concepts are applied in the real world. Finally, 8th graders determine the...