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Activity
5280 Math

Pythagorean Triples

For Teachers 10th - 12th
From Pythagorean triples to the unit circle. Learners use the Pythagorean Theorem to find Pythagorean triples and then relate their work to the unit circle in a fun algebra project. Their discovery that x^2+y^2 is always equal to one on...
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Lesson Plan
National Security Agency

Money Maters: Integers are Integral!

For Teachers 5th - 7th Standards
A thoroughly-written lesson plan and a plethora of worksheets about integers comprise this resource. Neophyte number crunchers learn to recognize integers, add and subtract them, and apply the concepts to the designing of a personal...
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Lesson Plan
Curated OER

Real Number System

For Teachers 9th
Ninth graders discuss the real number system and its' properties. In this algebra lesson, 9th graders discuss rational, irrational, closure, real numbers and the distributive property of algebra. They solve problems using these...
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Lesson Plan
Curated OER

Slope, slope-Intercept Form and Standard Form

For Teachers 9th - 10th
Students investigate and solve linear equations using slopes. In this algebra lesson, students graph lines using the slope and y intercept. They also find the slope by rewriting their equation in to slope-intercept form from standard form.
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Lesson Plan
Curated OER

How Much Has Math Changed?

For Teachers 9th - 11th
Learners solve problems using the opposite, reciprocal and powers. For this algebra lesson, students solve problems with inequalities and absolute values. They show understanding of the basic content of math in this lesson.
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Lesson Plan
Curated OER

Comparing and Ordering Integers

For Teachers 8th - 9th
Students compare and order integers on an umber line. In this algebra lesson, students differentiate between positive and negative numbers. They plot point in the correct order on a number line.
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Lesson Plan
Curated OER

Maxima and Minima Problems

For Teachers 11th - 12th
Students calculate the maxima and minima of quadratic equations. In this calculus lesson plan, students apply the derivatives by finding the maxima and minima using real life application. They solve optimization using the derivative. 
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Lesson Plan
Curated OER

Electric Field Mapping in 3D

For Teachers 11th - 12th
Students create a 3D vector field map of an electric field. For this physics lesson, students measure the voltage inside an aquarium with water. They present their findings and map to class..