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Lesson Plan
Curated OER

Art or Junk? Discovering the Triangle Inequality

For Teachers 6th
Middle schoolers study the triangle inequality. They will identify, compare, and analyze attributes of two and three-dimensional shapes. Then they develop vocabulary to describe the attributes. They also use manipulatives to analyze the...
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Lesson Plan
Curated OER

Using Manipulatives to Teach Fractions

For Teachers 2nd - 3rd
There is no doubt that learners remember what they have learned when they have a visual representation. Using an egg carton and candy bars, they explore the concept of fractional amounts. By having students cut the egg carton into parts...
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Lesson Plan
Curated OER

Modeling Mania

For Teachers 4th - 5th
Students describe techniques helpful in solving spatial problems which utilize the notion that a model is a simplified version of something complicated. They utilize methods such as sketching or drawing possible solutions to a problem.
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Lesson Plan
Key Curriculum Press

Triangle Inequalities

For Teachers 8th - 11th Standards
Properties about triangles are explored in this lesson. Geometers make conjectures about the length of a triangle's sides, the length of the angles in relation to the length of the sides, and the measure of the exterior angles of a...
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Lesson Plan
Curated OER

Close Enough?

For Teachers 6th - 8th
Students examine how navigation is based on mathematics and how making a mistake in measuring an angle could have an impact on a target. They observe a teacher-led lecture, use a calculator to complete two worksheets, and participate in...
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Lesson Plan
Curated OER

Graphing Calculator Investigation - Second Degree Polynomial Functions

For Teachers 9th - 12th
Students solve quadratic functions. In this solving quadratic functions lesson, students determine the height of an object at a given time. Students determine the time at which an object hits the ground. Students answer questions...
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Lesson Plan
Curated OER

Young Engineers: Understanding Engineering Through Cooking

For Teachers 2nd
Second graders explore different engineering careers. In this math lesson, 2nd graders create a winning cooking recipe. They role play a mock cookie sale during the culminating event.
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Lesson Plan
Curated OER

Let's Play Mathematical Baseball

For Teachers 3rd - 5th
Students explore the concept of spelling geometric terms and words with number prefixes. In this spelling geometric terms and words with number prefixes lesson, students play a game of baseball. Students spell words correctly to advance...
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Lesson Plan
Curated OER

Designing a Safe City Like a Civil Engineer

For Teachers K
Students study civil engineering, safety apparatuses in their city, and design their own city. In this civil engineering lesson plan, students discuss their towns safety apparatuses and define civil engineers. Students then design their...
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Lesson Plan
Curated OER

Seeing Numbers In Tens And Ones

For Teachers 2nd
Second graders develop the skill of place values up to the tens place. They practice identifying the values of 2 digit numbers and writing the correlating values with counting. They use the example of money to make the lesson more...
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Lesson Plan
Curated OER

Geometric Shapes And Figures

For Teachers 9th - 12th
Students compete in a scavenger hunt to find twenty-two different geometric shapes in natural objects around the school. They practice identification of each geometric shape using a handout then form small groups to search the school...

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