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Interactive
Curated OER

Greatest Common Factors

For Students 8th - 10th
In this algebra worksheet, students solve problems using the GCF. They factor out the common variables and simplify the equations. There are 8 questions with an answer key.
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Interactive
Curated OER

Probability Problem Worksheets

For Students 9th - 12th
In this online math worksheet, students practice their word problem solving skills. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A terrific teaching tool!
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Interactive
Curated OER

Probability and Geometry Problems

For Students 9th - 12th
In this online math worksheet, high schoolers consider a variety of scenarios which include elements of geometry and probability. This excellent resource allows the students to check their answers, and to get "hints" should they run into...
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Lesson Plan
Curated OER

Using Multiplication to Solve Word Problems

For Teachers 5th - 6th
Students explore math functions by solving word problems in class. In this multiplication lesson, students utilize colored cubes and base blocks to visualize multiplication problems. Students identify the multiplication values within...
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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

Walk a Mile in Albatross Shoes

For Teachers 3rd - 8th
Students recognize the correlation between the trash they dispose of around their school and the environmental hazards that face wildlife, specifically the Laysan albatross. They determine three ways that they can help the albatross chicks.
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Lesson Plan
Curated OER

Using Ion Exchange Chromatography to Separate Proteins

For Teachers 9th - Higher Ed
Students explore protein purification by separating a positively charged molecule, lysozyme, from a negatively charged molecule, albumin, at neutral pH using ion exchange chromatography.
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Lesson Plan
Curated OER

Beetle Wheels

For Teachers 2nd
Second graders link the development of skip-counting patterns to bars on a relationship graph. They also plot our skip-counting patterns on a hundred's board, counting by 2's and also by 4's.
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Lesson Plan
Curated OER

Smart Doubling

For Teachers 2nd
Second graders use mental math in calculations involving addition and subtraction. They study doubles facts to work out addition problems mentally using part and or whole reasoning.
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Lesson Plan
Curated OER

The Difference Bar 2

For Teachers 5th - 7th
Students use Internet software, The Difference Bar, to work out the difference between two numbers by breaking numbers into parts. Students use mental strategies to work out the difference between any 2 two-digit numbers. Students...
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Worksheet
Curated OER

Think of a Number

For Students 4th - 6th
In this math worksheet, students engage in a mental math activity. Student think a number and follow several computations with that number and always come up with the answer 9. Students discuss why this happens.
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Lesson Plan
Curated OER

Pattern Block Activities

For Teachers K - 8th
Students practice various math skills by using manipulative activities. In this math manipulative lesson, students sort shapes, build hexagons, and build shapes using manipulatives. These activities would be great for parent ed or...
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Worksheet
Curated OER

Volumes in 3-D

For Students 11th
In this geometry worksheet, 11th graders calculate the volume of there dimensional shapes using the formula for cylinders. They are given the height and the base and asked to calculate the volume. There are 4 problems.