Curated OER
Finding the Area of Triangles
Twelfth graders apply the formula for finding the area of a triangle to various problems. They work real life problems for finding the area of a bathroom and the cost of tiling it. They play a game, Triangle Bingo, where they match...
Curated OER
Pythagoras' Theorem
In this Pythagoras' Theorem worksheet, students solve problems having to do with square roots and numbers to a certain power. Students match up the answers for 30 problems.
Curated OER
How Tall Is That Flag Pole?
Students examine various triangles and discuss how similar triangles have sides that are proportional. They utilize an ancient Egyptian method to determine the height of a flagpole.
Curated OER
Cosine
In this cosine worksheet, students find the cosine of x for different measurements of triangles. Students complete 10 cosine problems.
Curated OER
Tangent Lines
In this tangent lines worksheet, 10th graders solve and complete 13 various types of problems. First, they solve the right triangles for the variables shown. Then, students name a radius, a diameter, a tangent, a secant, a point of...
Curated OER
Dynamic Algebra
Explore 5 classical problems of algebra. They will solve problems involving Heron's formula, fractional equations, vector equations, apollonius' sphere, and transversals. The idea is to lead to new perceptions and visual thinking.
Lone Star College
Geometry Worksheet II
Young geometers get practice with the algebra of angles in an extensive skills practice worksheet. Supplementary, complementary, and vertical angle relationships are used, along with parallel lines cut by a transversal and angle sum of a...
Curated OER
The Pascal Problem
In this Pascal activity, students begin at the center of a rhombus to identify the number of ways the word "Pascal" may be found. This one-page activity contains 1 puzzle. The answer is provided at the bottom of the page.
Curated OER
The Math of Sailboat Design
Learners explore the design of sailboats. In this sailboat lesson, students recognize right triangles and find the missing side of the triangle. Learners solve word problems and draw diagrams. Students relate the triangles to sailboats.
Curated OER
Sort Shapes
In this sorting shapes worksheet, students learn to recognize shapes within word problems and then sort them according to their characteristics. Students solve six word problems.
Curated OER
Combine and Separate Shapes
In this shape worksheet, students read word problems related to shapes, then use blocks to solve them. Houghton Mifflin text is referenced.
Curated OER
Use Formulas for Perimeter
In this perimeter formula worksheet, students solve a set of 6 word problems related to the perimeter of various shapes, then tell how they arrive at the answer.
Curated OER
Pythagorean Theorem
Students solve problems using the Pythagorean Theorem. In this geometry lesson plan, students identify the sides and angles of a right triangle. They find the different trigonometric ratios and solve using sine, cosine and tangent.
Curated OER
The Pythagorean Theorem
Seventh graders relate the Pythagorean theorem to the real world. In this algebra activity, 7th graders identify important properties of the Pythagorean theorem and use it to solve word problems. They create a step by step plan to help...
Curated OER
Law of Sines and Cosines
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.
Curated OER
Finding the Shortest Distance Between The Spider and The Fly
In this word problem worksheet, students solve for the shortest distance between a spider and a fly. The solution is provided.
Curated OER
Introducing Trigonometry
Eleventh graders explore the three basic trigonometric functions. In this trigonometry/Algebra II lesson, 11th graders use GeoGebra and the unit circle to define the ratios of sides is a right triangles as they examine the full domain...
Curated OER
Law of Cosines Practice
Students practice solving problems with non-right triangles. In this precalculus lesson, students define and identify the properties of the Law of Cosine. They solve problems and investigate the history behind Cosine.
Curated OER
Time Dilation and Geometry
Students solve problems of dilation and velocity. In this geometry lesson, students apply the Pythagorean Theorem to solve problems and relate it to time and velocity.
Curated OER
As the Bird Flies
Students investigate the properties of lines and congruent triangle theorems as well as apply geometric properties and relationships to real-world mathematical problems. Given two different scenarios, they examine maps that have been...
Houghton Mifflin Harcourt
Similar Polygons and Circles
In these similar polygons and circles worksheets, students complete 15 questions including 9 word problems regarding similar polygons. Students then complete 15 questions including 1 word problem involving circumference, area, and arc...
Curated OER
The Search for Pythagoras' Treasure
Students identify and define properties of triangles. In this geometry lesson, students identify the missing sides and angles of right triangles. They use the rules of the Pythagorean Theorem to solve their problems.
Curated OER
New York State Testing Program: Mathematics Book 2, Grade 5 2008
In this 5th grade math standardized test practice learning exercise, students solve 18 multiple-step open-ended math problems based on New York academic standards.
Curated OER
My Test Book: Geometry
In this online interactive math skills worksheet, students solve 10 multiple choice math problems regarding geometry skills. Students may view the correct answers.