Curated OER
Midpoints and Bisectors
In this geometry learning exercise, students calculate the midpoints of polygons using coordinate pairs. They find the angle bisector, altitude and median of the given triangles. There are 33 questions.
Curated OER
Basic Theorems and Proofs
In this pre-calculus worksheet, 11th graders recall the three forms of the law of cosines and used it to solve problems involving triangles. They also write out the laws of sines and use those to solve problems with angles. There are 15...
Curated OER
The Theorem of Pythogoras
In this geometry instructional activity, students solve right angle triangles using the Pythagorean Theorem. They calculate the area and sides of triangles and circles. There are 52 questions total.
Curated OER
Polygon Area Review Sheet
In this polygon area learning exercise, students answer 8 questions involving the area of several polygons. Students are given various details of the polygon and must find lengths of various polygons.
Curated OER
Exploring Geometric Mean
Students solve problems using geometric means. In this geometry lesson, students create altitudes in right triangles. They use Cabri software to move the triangle around and observe different sides and angles.
Curated OER
Exploring Geometric Mean
Student identify the solution using geometric mean. For this geometry lesson, students create right triangles where the altitude of the triangle is the side containing the right angle. They modify shapes using Cabri software and observe...
Curated OER
The Search for Pythagoras' Treasure
Students identify and define properties of triangles. In this geometry lesson plan, students identify the missing sides and angles of right triangles. They use the rules of the Pythagorean Theorem to solve their problems.
Curated OER
Quiz: Area of Polygons and Circles
In this area worksheet, learners compute the area of each of ten specified shapes. Seven of the shapes are quadrilaterals, one is a circle, and two shapes are triangles.
Curated OER
Geometry Regents Bimodal
For this geometry worksheet, students solve problems that are bimodal. They define properties of circles and triangles. There are 117 questions.
Curated OER
Half Angle
Students calculate the solution using half angles formulas. In this calculus lesson plan, students identify the different properties of a triangle using trigonometric properties. They identify the mean, altitude and angles of a triangle.
Curated OER
Trigonometric Word Problems
In this trigonometric word problems worksheet, 10th graders solve 16 different problems that include various trigonometric situations. First, they determine at what angle a ladder makes with the ground. Then, students determine the...
Curated OER
Pike's Peak Problem
In this algebra worksheet, students answer a word problem about a distance-rate multiplied by times problem. They discuss slope and altitude. There is an answer key with this problem.
Curated OER
Trigonometry Applications
In this geometry activity, 10th graders solve application word problems involving the use or right triangle trigonometry, including angle of elevation or depression. The one page interactive activity contains five questions. Hints,...
Curated OER
Min/Max Problems - Week 13
In this minimum and maximum worksheet, student find the maximum and minimum values of given functions. They determine the largest and least altitude of a scalene triangle under given conditions. Learners find the largest value of pairs...
Curated OER
Angle Bisectors
Learners identify different angles. In this geometry instructional activity, students identify different properties of triangles. They find the altitude, median and angle bisector.
Curated OER
Geometric Figures
Students compare, classify and calculate the area of geometric figures such as rectangles, squares, circles and triangles.
Curated OER
THE MEAN INDEX CARD
Learners cut an index card to create three similar right triangles and explore the congruencies and proportions that exist. They investigate the properties of lines and concepts of congruency, similarity, tangency and symmetry of...
Mt. San Antonio Collage
The Trapezoid
Enjoy this nicely organized worksheet that puts together multiple problems regarding trapezoid proofs. The resource can be used as a guide that begins with proving properties and ends with solving for measures of line segments.
Bytes Arithmetic
Geometry Pad+
Graphing paper, pencil, ruler, protractor, and compass, all get replaced or supplemented with this dynamic geometry application. Here, you can create, move, and scale many different shapes, as well as, explore and change their properties...
EngageNY
Comparing the Ratio Method with the Parallel Method
Can you prove it? Lead your class through the development of the Side Splitter Theorem through proofs. Individuals connect the ratio and parallel method of dilation through an exploration of two proofs. After completing the proofs,...
Teach Engineering
Catching the Perfect SAR Waves!
Zero in on an interesting resource involving radar technology. Groups construct a radar sensing unit and learn to calibrate the system. Using the radar system and the Pythagorean Theorem, they calculate distances between objects.
Centers for Disease Control and Prevention
Hand Washing Experiment
An engaging experiment allows scholars to understand why the recommendation is to wash for 20 seconds with soap and water — while making them aware of their own habits!
Centers for Disease Control and Prevention
Diseases
During a cholera outbreak, scientists presented two theories; one theory was based on miasma and the other on germs and contaminated water. The lesson looks at the scientific process for finding the real culprit.
Curated OER
Regular Pyramids
In this Geometry worksheet, 10th graders solve problems involving the properties of a regular pyramid. The one page worksheet contains a combination of three multiple choice and free response questions. Answers are included.