Curated OER
Triangle Angle Sort
In this triangle and angle worksheet, 10th graders identify 36 different angles and triangles illustrated on the sheet. First, they define the vocabulary to include equilateral, scalene, right, and isosceles triangle. In addition, they...
Curated OER
Circle Proofs
In this circle proofs worksheet, 10th graders complete 4 different problems that include circle proofs. They respond to each of the questions that deal with circle proofs. Then, students read the given information and use the circle...
Curated OER
Extraterrestrial Shapes
In this shapes worksheet, students complete 5 different figures with various given shapes. First, they identify each shape illustrated. Then, students color and decorate each shape. Finally, students cut out and paste the various shapes...
Curated OER
Math and Numbers - Basic Shapes
In this basic shapes worksheet, students view labeled pictures of a circle, square, triangle, rectangle and oval. They are not asked to do anything with these shapes.
Curated OER
The Different Shape
In this geometry instructional activity, students identify and color the shape that is different in each row. There are ten different shapes shown on the sheet.
Curated OER
Trace the Different Shape
In this geometry worksheet, students trace the shape that is different in each row. There are a number of different shapes to identify on the sheet and then, color each one.
Curated OER
Counting Shapes
In this mathematics worksheet, students identify various shapes. Then they circle the correct number of shapes illustrated in each box. There are 10 problems to solve on the sheet.
Curated OER
Compare Groups
In this mathematics worksheet, students identify various types of shapes shown. Then they circle the group with the most shapes. There are 8 problems to solve on the sheet.
Curated OER
Graph Groups
In this mathematics worksheet, students solve a number of problems by counting each shape and graphing the amount to the right in height. Then they circle the shape that appears the most often on the sheet.
Curated OER
Calculating the Area of a Triangle
A quick definition and the formula for finding the area of a triangle is provided at the top of this worksheet. After reading the description, 5th graders must find the area of the 3 given triangles. This is an excellent enrichment...
Curated OER
Cutting Sandwiches
Students discuss shapes and their characteristics. As a class, they explore shapes made from a square. Students explore triangles, squares, fractions of a square such as a half and a quarter. Individually, they complete worksheets, and...
Curated OER
Application of Delta-Epsilon Definition of the Limit
Students investigate the concept of a Limit and how it is used in a variety of problematic situations. They fold paper to help illustrate how to form equilateral triangles and explain how all the angles are the same. The lesson includes...
Curated OER
Pythagorean Theorem Word Problems
Pupils investigate the concept of the Pythagorean Theorem for geometry by using word problems. The challenge is for them to translate the words into the right measurements for a triangle looking for the longest side known as the hypotenuse.
Curated OER
Seeing Shapes
Students study a variety of geometric shapes by taking pictures of items representing the shapes with a digital camera. They identify the shapes by using software to paint on the image.
Curated OER
Tri this Angle!
First graders draw and describe various types of polygons. they investigate their own environments for examples of polygons. After reading the book, The Greedy Triangle, they discuss everyday objects that are polygons. They create shape...
Curated OER
Elastic Band Shapes
Students identify basic shapes (triangle, square, rectangle, circle), create shapes with different body parts, and create shapes at various levels (high, low)
Harvey Mudd College
Harvey Mudd College: Elementary Vector Analysis
This site from the Harvey Mudd College contains information on vector analysis. The information is very informative, and is mostly wrapped up in formulas and graphs. Definitely factual, a good site to check out.
PBS
Pbs Learning Media: Triangles
In this video segment [2:01] from Cyberchase, the CyberSquad finds that by arranging triangle tiles they are able to create a path that will allow them to cross a river of hot lava.
Scholastic
Scholastic: Max's Math Adventures: Max's Fantastical Zoo
Use this rhyming description of Max's Fantastical Zoo to make some amazing animals from geometric shapes. There is a teacher's guide for easy lesson planning.
National Council of Teachers of Mathematics
The Math Forum: Exploring Pascal's Triangle
Every grade level can learn from Pascal's Triangle, and this site helps make it possible. There are explanations, examples, exercises and printable worksheets available.
PBS
Pbs Learning Media: Making Rock Candy
In this video segment from Cyberchase, two friends make rock candy while learning about 2-D and 3-D shapes.
University of Vienna (Austria)
Trigonometry: Law of Sines
This is demonstration of how the law of sines works. It uses Java applets to manipulate the triangle and allows the user to explore what happens to the values of the triangle as the sides are changed.
University of Vienna (Austria)
Univ of Vienna: Trigonometric Functions
An interactive tool to discover how the trig functions came to be. Applets are used in this interactive learning tool. Examples exercises are also given.
Beacon Learning Center
Beacon Learning Center: The Facts Please, Mr. Mumble
This interactive web lesson teaches students about two-dimensional shape attributes.