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Worksheet
Curated OER

Geometry Review

For Students 6th - 8th
In this geometry math review worksheet, students respond to 37 questions that serve as a review of geometry skills.
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Lesson Plan
Curated OER

Law of Sines and Cosines

For Teachers 10th - 11th
Students solve problems using sine and cosine. In this precalculus instructional activity, students apply the properties of sine and cosine to solve non-right triangle problems. They use Heron's Law to find the area of a shape.
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Worksheet
Curated OER

Squares

For Students 10th
In this squares worksheet, 10th graders solve and complete 7 various types of problems. First, they divide a product of one with a square of the other. Then, students find the dimensions of a rectangle that will maximize the area. In...
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Lesson Plan
Curated OER

Orbiting Satellites

For Teachers 11th
Eleventh graders explore the concept of orbits.  For this Algebra II lesson, 11th graders investigate Earth-orbiting satellites as they use algebraic thinking to calculate altitude and velocity. 
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Interactive
Curated OER

Example and Steps to Solving Linear Systems Using Substitution

For Students 8th - 11th
In this linear equation worksheet, students solve five systems of linear equations using the substitution method.  Three examples with steps to solve are provided.
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Lesson Plan
Curated OER

More of DeMoivre's Theorem

For Teachers 10th - 11th
Students identify DeMoivre's Theorem. In this precalculus lesson, students derive the law of sine and cosine as it relates to DeMoivre's Theorem. They identify the best time to use these formulas.
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Lesson Plan
Curated OER

The Meaning of Algebraic Expressions

For Teachers 6th - 9th
Students define equations and expressions. In this algebra instructional activity, students review important vocabulary words to do with equations and solving problems. They simplify equations and expressions using addition, subtraction,...
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Worksheet
Curated OER

Law of Sines and Law of Cosines

For Students 11th - 12th
For this Pre-calculus/Trigonometry worksheet, students use the laws of sines and cosines to solve triangles. The four page worksheet contains thirteen problems. Answers are not included.
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Lesson Plan
Curated OER

Operations of Complex Numbers and Intro to DeMoivre's Theorem

For Teachers 9th - 10th
Pupils solve problems with complex numbers. In this algebra lesson, students factor complex numbers and simplify equations using DeMoivre's Theorem. They add, subtract, multiply and divide using negative roots.
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Lesson Plan
Curated OER

Ratio and Proportion

For Teachers 7th - 8th
Students investigate ratio and proportion.  In this middle school mathematics lesson, students write ratios and find equal ratios.  Students use ratio and proportion to distinguish between healthy and unhealthy body proportions.
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Worksheet
Curated OER

Rational Expressions and Equations

For Students 9th - 11th
In this Algebra I/Algebra II worksheet, students reduce, add, subtract, multiply, and divide rational expression. Students also solve rational equations.  The one page worksheet contains twenty-six problems. Answers are not provided.   
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Lesson Plan
Curated OER

Special Right Triangles

For Teachers 7th - 9th
Students identify the different parts of a right triangle. In this geometry lesson, students use the Pythagorean Theorem to identify missing sides and angles of a right triangle. They work with irrational and rational roots.
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Worksheet
National Council of Teachers of Mathematics

Perplexing Parallelograms

For Students 9th - 10th
In this geometry worksheet, young mathematicians divide a parallelogram into four, by choosing points along a diagonal.  Learners calculate the area of each parallelogram and look for any patterns that may emerge.  The one-page worksheet...
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Worksheet
Curated OER

Algebraic Fractions

For Students 11th
In this Algebra II activity, 11th graders add, subtract, multiply, and divide algebraic fractions and solve rational equations. The two page activity contains eight problems. Answers are not provided.
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Lesson Plan
Curated OER

Counting Principle

For Teachers 8th - 10th
Students identify the different outcomes given a situation. In this algebra lesson, students calculate the possible outcome using the counting principle. They compare and analyze patterns to make their predictions.
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Worksheet
Curated OER

Polynomial Functions

For Students 11th
In this Algebra II worksheet, 11th graders use a graphing calculator to determine the regression equation of the given data, graph polynomial functions, factor polynomials, and determine the quotient and remainder in polynomial division....
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Worksheet
Curated OER

Solve Two Step Inequalities

For Students 9th - 11th
In this algebra worksheet, students solve inequalities using addition, subtraction, multiplication and division. Answers to the 6 problems could also be graphed. An answer key is provided.
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Lesson Plan
Curated OER

Linear Equations

For Teachers 9th - 11th
In this algebra worksheet, student linear equations through addition, subtraction, multiplication and division. They check their work algebraically. There are 26 problems.
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Lesson Plan
Curated OER

Basic Ideas of Functions

For Teachers 9th - 11th
In this Algebra I/Algebra II worksheet, students determine whether or not a relation is a function.  Students determine the domain of a function and express the answer in interval notation.  The three page worksheet contains fifty-eight...
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Lesson Plan
Curated OER

Exponential and Exponents Functions

For Teachers 9th - 11th
Students solve problems using exponential properties. For this algebra lesson, students differentiate between exponents, exponential and log functions. They graph their functions using table and exponents.
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Worksheet
Curated OER

The Rational Root Theorem

For Students 11th
In this algebra worksheet, 11th graders find the rational roots of an equation, by setting it to zero and solving for x. They can also use synthetic division and p/q to help find and eliminate rational root values. There are 19 problems...
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Lesson Plan
Curated OER

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...
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Lesson Plan
Curated OER

Complexity

For Teachers 10th - 12th Standards
Students perform mathematical operations on complex numbers. After a lecture/demo, students utilize a worksheet imbedded in this plan to gain practice performing operations on complex numbers.
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Lesson Plan
Curated OER

Around and Around We Go

For Teachers 4th
Fourth graders discover that a polygon is a closed figure formed by line segments, and that the perimeter of a polygon is the sum of the lengths of its sides. They utilize a worksheet imbedded in this plan to gain lots of practice with...