• Recognizing real-life examples of points, lines, perpendicular lines, and parallel lines
• Drawing points, lines, and perpendicular lines

Web of Lines
Students will use hands-on activities to learn about  lines, rays, segments, and points. Students use yarn to create a "web" of parallel and perpendicular lines.

Angles
The student should be able to classify angles of a polygon as greater than, less than, or equal to a right angle.

Ovals, Rectangles, Squares, and Triangles
Students will identify geometrical shapes displayed in photographs of everyday objects in a metropolitan setting.

Third Grade Shapes Up!
(Scroll down to Mathematics → Geometry → Third Grade Shapes Up!)
This unit contains 8 lessons that focus on geometric shapes and figures.  Students will observe geometric shapes in their environment and be exposed to hands-on activities to enhance their understanding of geometry.

Obtuse Angles
Students will create polygons with various angles and call by name the following geometric shapes:  triangle, quadrilateral, pentagon, hexagon, octagon, nonagon, and decagon.  Includes two PowerPoints.

Triangles
The students will recognize, make, and draw geometric shapes with acute angles on geoboards and on geopaper.  Includes three PowerPoints.

Lines and Slope
Students will graph lines and learn to visualize slope.

Angles (ToonUniversity.com)
Provides interactive games to teach basic math terms related to angles. Uses Flash software.

Angles
Explore angles from a builder's perspective.

Parallel Lines
Explore parallel lines from a builder's perspective.

Angles and Geometry Activity
Here's a great idea for using cheerleader arm movements to demonstrate the various angles.

A Maths Dictionary for Kids by Jenny Eather 
The Maths Dictionary is animated, interactive, and allows students to practice their math skills. Over 500 terms are explained in simple language. Click on "billion" and discover that you have 10 billion brain cells working for you right now. Roll your mouse over the world time zone chart and you instantly know the time for that part of the world. Every math teacher should bookmark this Web site.

National Library of Virtual Manipulatives
Virtual manipulatives related to NCTM standards in the areas of Number & Operations, Algebra, Geometry, Measurement,  and Data Analysis & Probability.  To access tools, click inside the grid on the cell that matches the grade level and standards area desired.

Figure This!
From NCTM:  Three to four math challenges using real world examples are posted here each month. For those who need help solving the challenge, there are hints and complete solutions, along with related problems.

Geometric Terms
Great source for geometric vocabulary, including term, definition, and example of shape.
                     

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