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Worksheet
Curated OER

Circles and Cylinders

For Students 10th
In this circles and cylinders worksheet, 10th graders solve and complete 22 various types of problems. First, they collect data for a radius and circumference for several different circles and calculate the quantity. Then, students find...
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Lesson Plan
Curated OER

Investigating Trigonometric Ratios Through Similar Right Triangles.

For Teachers 8th - 10th
49Students investigate the properties of right triangles. In this geometry lesson, students differentiate between similar and congruent triangles. They use the Pythagorean Theorem to find the missing angles and sides.
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Lesson Plan
Curated OER

Multicultural Math Project

For Teachers 6th
Sixth graders examine where mathematics came from. In this Math History lesson, 6th graders complete various activities to understand mathematical reasoning. Students complete critical thinking questions.
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Worksheet
Curated OER

Calculating the Hypotenuse

For Students 6th - 7th
In this triangles worksheet, students use Pythagoras' theorem to find the hypotenuse of a triangle. Students solve 20 problems and also calculate the length of the diagonals in rectangles. This page is intended for online use but may be...
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Worksheet
Curated OER

Graphs

For Students 9th
In this graphing worksheet, 9th graders read one page of graphing examples and complete 8 exercise problems. Each problem involves graphing and coordinates.
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Worksheet
Curated OER

Review of Trig Ratios

For Students 11th - Higher Ed
In this trigonometric ratios worksheet, learners solve and complete 10 various types of problems. First, they write the degrees listed in radian measure. Then, students find the exact ratios for each equation. They also find the value of...
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Lesson Plan
Curated OER

Rings and Diamonds

For Teachers 5th
Fifth graders solve a problem by using systematic problem solving strategies. They determine if there is enough information to solve the problem. They solve a problem involving geometric shapes and area.
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Lesson Plan
Curated OER

Plenty of Pythagoras

For Teachers 5th - 8th
Using a twelve foot knotted rope, students form a 3-4-5 right triangle. Following a discussion of observations about the lengths of the sides of the triangle, students use grid paper, scissors and a centimeter ruler to draw and measure...
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Worksheet
Curated OER

Numerical Analysis: Introduction to Root Finding

For Students Higher Ed
In this introduction to root finding instructional activity, students write equations to solve distance problems. They explore the bisection method of Bolzano. This four-page instructional activity contains approximately ten problems.
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Lesson Plan
Curated OER

Square Pegs in Round Holes

For Teachers 6th
Sixth graders problem solve the square peg in the round whole problem by applying knowledge of the formulas for the areas of the circle and the square. They decide on a problem solving strategy based on logical reasoning.
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Lesson Plan
Curated OER

Using Trigonometry

For Teachers 5th
Fifth graders explore the use of trigonometry to find unknown sides and angles in right-angled triangles, taking the concepts that were developed in the previous unit and looking at different ways of practicing the new skills. Students...
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Lesson Plan
Curated OER

Investigating the Idea of Tan

For Teachers 5th
Fifth graders use tan to solve problems involving right-angled triangles. They solve equations of the form tan(8) =a, for a between 180 degrees and 360 degrees. They state the value of tan (8) in special cases.
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Lesson Plan
Curated OER

Investigating the Idea of Cos

For Teachers 5th
Fifth graders use cos to solve problems involving right-angled triangles. They solve equations of the form cos(++) = a, for a between -180 and 360 degrees. They state the value of cos(++) in special cases and graph y = cos(++).
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Lesson Plan
Curated OER

Bill's Badge

For Teachers 6th - 8th
Students explore the making of circles and concepts related to them in geometry. The project is inquiry based will focus upon students making their own nametags. The construction is ideal for hands on students.