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Worksheet
Curated OER

Understanding the Relationship Between Subtraction and Addition

For Students 3rd - 4th
In this understanding subtraction and its relationship to addition learning exercise, students examine 14 number statements. They determine if the statements are true or false.
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Worksheet
Curated OER

Inverse and Division

For Students 3rd - 4th
In this inverses worksheet, students analyze 20 basic multiplication facts. Students write the inverse corresponding division problem for each one.
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Worksheet
Curated OER

Checking Subtraction with Addition and Writing Number Sentences

For Students 3rd - 4th
In this math worksheet, students complete 12 subtraction problems which they check with addition. They solve 6 short mixed word problems and write a number sentence for each while solving it.
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Lesson Plan
Curated OER

Pizzas And Things

For Teachers 1st
First graders problem solve using the concepts of doubling and halving numbers as previews for finding multiples and working with fractions. They determine how to find half of a set of objects and work with sums up to 16. They work with...
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Lesson Plan
Curated OER

Doing Battle With Radical Equations

For Teachers 9th - 12th
Students observe and solve examples of equations involving radicals. They complete a Doing Battle With Radical Equations worksheet and checklist.
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Lesson Plan
Curated OER

Matter

For Teachers 4th - 6th
Students complete a unit of activities to learn about states of matter and how to measure matter. In this matter activity, students complete 8 lessons to learn about matter, its states, and how to measure matter.