Lesson Plan
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Similarity and Congruence

For Teachers 9th - 12th
Students explore the concept of similarity and congruence. In this similarity and congruence lesson, students identify and verify whether or not two figures are similar, congruent, or neither. Students use postulates and theorems such as...
Lesson Plan
Curated OER

Literal Equations

For Teachers 9th - 12th
Students explore Literal Equations. In this literal equations lesson plan, students use the Internet to connect to links and solve linear equations. Students investigate, analyze and record their findings on various activity worksheets.
Lesson Plan
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Betrayal of Penn's Promise - The Walking Purchase

For Teachers 6th - 8th
Pupils role-play the 1737 Walking Purchase. In this Pennsylvania history lesson plan, students role-play the 1737 Walking Purchase and analyze its effects. Pupils also consider how it would affect their community today.
Worksheet
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Math Vocabulary Decoding Activity

For Students 5th - 6th
In this math vocabulary worksheet, students use a letter key code to match match vocabulary words to their definitions. A reference web site it given for additional activities.
Worksheet
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Math Vocabulary Maze

For Students 4th - 6th
In this math maze worksheet, students navigate their way through a maze using clues and spelling out math vocabulary words. A reference web site is included for additional activities. 
Worksheet
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Math Vocabulary Spelling Worksheet

For Students 3rd - 6th
In this math vocabulary instructional activity, students read the math vocabulary definitions and write in the missing letters to the vocabulary words. Students complete 15 words.
Worksheet
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Math Vocabulary Multiple Choice Words Worksheet

For Students 3rd - 6th
In this math vocabulary worksheet, students complete multiple choice problems where they match the correct math vocabulary word to its definition. Students complete 15 questions.
Lesson Plan
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Math Morphing Proximate and Evolutionary Mechanisms

For Teachers 9th - 12th
Students identify the different types of fractals. In this geometry lesson, students use math to analyze different biological phenomena. They collect data from the experiments and construct graphs.
Lesson Plan
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The Minimal Distance Point from the Vertices of a Triangle

For Teachers 9th - 10th
Students calculate the distance from the vertex of a triangle to the center. In this geometry activity, students find the shortest distance between a point and the vertex of a triangle. They relate this concept of distance to the real...
Lesson Plan
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Rational Function Graphs

For Teachers 7th - 9th
Pupils use algebraic methods to represent and solve problems. Using a graphing calculator, students solve rational and inequality problems. They visually demonstrate solutions of functions through graphing. Pupils answer questions...
Lesson Plan
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Pythagorean Theorem Proof

For Teachers 10th
Tenth graders investigate the Pythagorean Theorem. Then they type up a formal paragraph proof of a proof of their choice.
Lesson Plan
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Lines, Rays, Line Segments, and Planes

For Teachers 9th - 12th
Students are introduced to lines, rays, line segments and planes and study the differences between them. They also practice graphing lines, rays, line segments and planes
Lesson Plan
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Shape Makes a Difference!

For Teachers 3rd - 6th
Students learn the difference between perimeter and area by watching a video and a hands on activity.
Lesson Plan
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Counting By 5s

For Teachers 2nd
Second graders count by 5's to 100. In this math lesson conducted on the 100th day of school, 2nd graders use picture stamps in the KidPix program to count by 5's and get to 100.
Lesson Plan
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Acid and Bases - Alien II

For Teachers 8th
Eighth graders determine which of two solutions is more acidic by adding each to a given base. Students have to apply this analysis process to a problem scenario involving an alien creature.
Lesson Plan
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Math: Equal Area Triangles

For Teachers 6th - 8th
Students examine a math worksheet and determine how to divide a single triangle into four of equal area. Using geometric principles, they sketch two additional ways to divide into into four equal triangles. To conclude, students...