Module 3: Lines and Shapes

Matho:
Practice your geometry terminology with these virtual flash cards (with pictures!) This site can be used throughout Module 3 to help you remember all of the new terms you learn.
http://www.aplusmath.com/cgi-bin/games/geomatho

Section 3.1: Geometric Constructions

3.1A: From Points to Lines

Kidport 7^th Grade Mathematice: Measuring Angles:
Use a virtual protractor to measure angles.
http://www.kidport.com/Grade7/Math/MeasureGeo/MeasuringAngles.htm

3.1C: Constructing Perpendicular Bisectors

Math Open Reference:
View an animated demonstration of how to construct perpendicular line segments.
http://www.mathopenref.com/constperpextpoint.html

3.1D: Constructing Angle Bisectors

Math Open Reference:
View an animated demonstration of how to construct an angle bisector.
http://www.mathopenref.com/constbisectangle.html

Construction: Bisect Angle:
Construct an angle bisector with virtual geometry tools.
http://strader.cehd.tamu.edu/geometry/bisectangle1.0/bisectangle.html

3.1E: Constructing Parallel Line Segments

Math Open Reference:
View an animated demonstration of how to construct parallel line segments.
http://www.mathopenref.com/constparallel.html

Section 3.2: Areas of Polygons

3.2A: How Do We Measure Things?

AAA Math:
What type of polygon is it?
http://www.aaamath.com/B/geo318x1.htm

AAA Math:
How many sides or angles are in the polygon?
http://www.aaamath.com/B/geo318x4.htm

Interactivate: Perimeter Explorer:
Find the perimeters of various shapes on a grid. Use the different features to compare area and perimeter, or to keep track of your progress.
http://shodor.org/interactivate/activities/PerimeterExplorer/

Interactivate: Area Explorer:
Find the areas of various shapes on a grid. Use the different features to compare area and perimeter, or to keep track of your progress.
http://shodor.org/interactivate/activities/AreaExplorer/

Section 3.3: Circles

3.3A: A What’s in a Circle?

Math Open Reference:
Definition and properties of a circle with interactive components.
http://www.mathopenref.com/circle.html

Mrs. Glosser's Math Goodies:
Interactive circle crossword puzzle.
http://www.mathgoodies.com/puzzles2004/puzzles/icircle1.html

3.3B: What is Pi?

Math Open Reference:
Definition and properties of the circumference of a circle with interactive components.
http://www.mathopenref.com/circumference.html

3.3C: Circumference of a Circle

Pi Day:
The Exploratorium's Annual Pi Day Celebration Page. Learn about pi, pi day and even read some pi-limericks!
http://www.exploratorium.edu/pi/index.html

A Brief History of Pi:
Learn tons of interesting facts about pi. Explore the history of pi, it's digits, some pi-related experiments, and check out the additional links.
http://www.math.com/tables/constants/pi.htm

The Math Forum: About Pi:
Learn everything you ever wanted to know about pi!
http://mathforum.org/dr.math/faq/faq.pi.html