We know when students are just beginning their study
of geometry, the basic concepts can be difficult to grasp. These activities
are written for teachers to use in their basic geometry classes.
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1. Area
Divide and conquer to find the area of irregularly shaped polygons.
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2. Point on the Graph
Change the coordinates and watch the point change, or move
the point and see the coordinates respond to the new position.
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3. Distance
How do you find the distance between two points? Check your
result with the measurement box.
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4. Midpoint
Finding the midpoint in more than one way can be easy.
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5. Parallel and Perpendicular
Find the slopes and discover which lines are parallel and which
are perpendicular.
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| 6. Perpendicular Bisector |
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7. Similar Figure Length
The shapes are similar and some lengths are known. Using this
knowledge, calculate the length of the unknown side.
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8. Similar Figure Perimeter and Area
Discover the perimeter and area of these similar squares.
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9. Circle
Change the equation or move the circle. Either way, you will
see the results graphically and algebraically.
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10. Sine
Find length AC when you know angle A and length BC.
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11. Cosine
Now, find length AC when you know angle A and AB.
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12. Tangent
Finally, find length BC when you know angle A and the length
of side AB.
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8. Pythagorean Theorem
What is the distance from second base to home plate?
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