Curated OER
Circles
In this circles worksheet, 10th graders solve and complete 13 various types of problems. First, they solve each set of triangles for the given variable. Then, students name a radius, a diameter, a tangent, a secant, a point of tangency,...
Curated OER
Area of Triangles
In this geometry worksheet, 10th graders calculate the area of right triangles using the Pythagorean Theorem combined with the area formula. There are 14 questions with an answer key.
Curated OER
Geometric Applications
In this geometric applications learning exercise, learners find the length of a missing side of a right triangle. They determine the perimeter of a polygon and find the distance between two lines. This two-page learning exercise contains...
Curated OER
A Different Proof of the Law of Cosines
In this proofs worksheet, students construct 1 proof of the law of cosines. Students construct a right triangle within a circle to prove the law of cosines.
Curated OER
Tangents
In this tangents worksheet, students determine the length of a missing side of a right triangles. They use tangent lines to solve problems. This two-page worksheet contains 11 multi-step problems.
Curated OER
Tangents
For this tangents worksheet, students use tangent ratios to find the length of the sides of right triangles. This one-page worksheet contains 10 multi-step problems. Answers are provided.
Curated OER
The Odyssey - By Homer
Students read and interpret the epic poem The Odyssey by Homer. They interlock this poem to other spectacular people or events such as Amelia Earhart and the Bermuda Triangle. A vast array of excellent assignments are given within this...
Curated OER
Area Formulas
Learners use the area formula for a rectangle to identify the area formulas for triangles, parallelograms, and trapezoids. In groups they complete a variety of worksheets, and examine irregular figures whose areas can be determined by...
Texas Instruments
Getting Started with Cabri Jr.
Pupils construct geometric figures using Cabri Jr. in this constructing geometric figures using Cabri Jr. lesson. They familiarize themselves with Cabri Jr. and construct segments and triangles. Your learners will use various tools to...
Curated OER
Geometry Standardized Test Practice
In this angles and figures review worksheet, 10th graders solve and complete 39 different multiple choice problems. First, they find the length of a line between two given points. Then, students name the type of transformation and the...
Curated OER
Learning Colors and Shapes
In this colors and shapes instructional activity, students look over a box full of different shapes, color the triangles red, squares blue, rectangles yellow, ovals green, circles purple and the diamonds orange.
Curated OER
Ratio
For this ratio worksheet, 6th graders practice problem solving 10 mathematical word problems involving the ratio between measurements and triangles.
Curated OER
Find the Surface Area of the Triangle
In this geometry activity, students are asked to solve for the surface area of a triangle and a trapezoid. They are fiven the height and base. There are 2 questions with an answer key.
Curated OER
Pythagorean Theorem
In this measurement worksheet, students will be given 2 sides of a right triangle, they will determine if the missing side is a leg or the hypotenuse. They will use the Pythagorean Theorem to create an equation and find the length of the...
Curated OER
Trig functions and Triangles
Here is a basic plan for the beginning teacher to use for introducing the class to the right triangle trigonometric functions. It outlines the instructional activity objectives, class procedures, and basic instructional techniques that...
Curated OER
Equilateral Triangles
In this equilateral triangles worksheet, students study the various triangles to identify equilateral triangles. Students may count the triangles.
Curated OER
Brain Teaser- How Many Triangles?
In this geometry worksheet, students examine a picture that has many hidden triangles. Students count the triangles they discover and color the picture.
Curated OER
Toothpick Triangles
Explore patterns, variables, and mathematical relationships when you examine patterns with toothpicks and determine the next sequence of figures. Your class writes and justifies a formula based on the sequence. An answer key is included.
Curated OER
Area of Parallelograms and Triangles
Students explain the formula for finding the area of a paralellogram and its relation to the area of a rectangle. Finally, they construct the formula for the area of a paralellogram.
Curated OER
Triangles & Congruence, Proportions & Similarity, Right Triangle & Trigonometry
Students are introduced to the topic of congruence and proportions in Geometry. Using technology, they construct and validate the properties of various geometric figures and identify whether it is congruent or proportion to the objects...
Curated OER
Triangles
Third graders recognize geometric shapes with acute angles, make geometric shapes with acute angles on geoboards, and draw acute angles on geopaper.
Noetic Learning
Kinds of Triangles (Online Interactive)
For this triangles learning exercise, learners analyze pictures of four triangles. For each triangle, students mark if it is acute, obtuse, or right.
Alabama Learning Exchange
Is It a Triangle?
Students explore the concept of triangle inequalities. In this triangle inequality lesson, students cut spaghetti noodles into given lengths. Students use the noodles to complete a worksheet about triangle inequalities. Students...
Curated OER
Visuals Patterns in Pascal's Triangle
Learners examine Pascal's Triangle and attempt construct it on their own. In this visual patterns activity students explore patterns that exist in Pascal's triangle.
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