Students use Geometer's Sketchpad to examine the scale factor when in is applied to the length of a figure's sides. They look at how the scale factor affects the side lengths, perimeter, and area of the figure that result. They work with...

Students create ways to find the number of square miles that lie in a triangle having vertices at A, B, and C. They compute the distance between two points and use Heron's formula to find the area of the triangle. Finally, students...

In this inductive reasoning and conjecturing worksheet, 10th graders solve 8 different problems that are related to using inductive reasoning and conjecturing. First, they determine if the conjecture is true or false based on the given...

In this inductive reasoning and conjecturing learning exercise, 10th graders solve 4 problems that include applying inductive reasoning and conjecturing to each problem. First, they determine if each conjecture is true or false based on...

For this geometry worksheet, learners use the correct sketch to represent lines, planes and points. They convert the word into drawings of the appropriate figure. There are 20 questions.

In this segments and rays worksheet, students sketch relationships, find the missing measurements, and find coordinates of the midpoint of segments on a number line.

In this Pre-calculus/Trigonometry worksheet, students apply advanced triangle and circle trigonometry to solve application problems. The three page worksheet contains sixteen problems. Answers are not included.

Students create polygons using geometers sketchpad. In this geometry lesson, students construct the interior angles of polygons and label the different points. They estimate and measure the different parts as they draw conclusion.

Students review the definition of a circle and the general formula for a circle to specific problems. They also write the equation for a circle given the center and radius of the circle. Students then define a circle using either the...

The site contains a description of collinear points and an interactive picture of Collinear points and how they work.

This MathWorld site explains what it means to be collinear, and explains a test to see if three points are collinear using ratios of distances of the points' parts. The site also gives another method of determining collinearity between...

Learn about collinear points with this handy reference guide. Provides a detailed definition and an interactive activity that enhances further explanation. Includes links to related topics.

This task leads students through a series of problems which illustrate a crucial interplay between algebra and geometry. Aligns with A-REI.D.10.

[Free Registration/Login Required] This flipchart is aligned with the book Geometry for the Enjoyment and Challenge. This lesson is collinearity, betweenness, and assumptions to help in the development of the study of proofs.

[Free Registration/Login Required] Students explore basic geometric definitions by navigating through the interactive learning module and then answering questions that go along with the module. Students can also learn more about the...

[Free Registration/Login Required] Students explore basic geometric definitions by navigating through the interactive learning module and then answering questions that go along with the module. Students can also learn more about the...

[Free Registration/Login Required] This is a brief discussion between teacher and student using geometrical graphics to explore vocabulary. Vertical angles, linear angles, consecutive points, and collinear points are highlighted.

A list of geometry definitions and a matching activity.

Dozens of statistical terms are defined and illustrated in this glossary.

A complete reference guide to points, lines, and planes. It provides definitions and interactive activities that enhance further explanation.