Road Sign
Problem Is there anything wrong with the sign? If so, what's the problem? Please explain. |
Pool paths Here is an unusual pool table. Your Challenge: See if you can come up with a way to predict (1) what the number of touches will be and (2) which corner the ball will end up. |
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13 x 7 = 28 Watch Abbott and Costello do some mathematical hocus-pocus with multiplying 13 x 7 and getting an answer of 28. Explain how Costello came up with an answer of 28. |
Birthday problem What is the probability that in a room of 25 people that 2 people share the same birthday? Use the applet to determine the probability experimentally. |
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Boutique Shop In this shop the student plays the role of a store clerk who sells clothes. In the image, the student is given $5.00 for an item that costs $4.22. What are the different ways you make this change? |
String
Around the Earth Problem Seymour Papert writes about a classic problem from the perspective of trying to understand the math behind our intuition that goes awry. |
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Tris
or Untris You will see 9 line segments (or straws) of various lengths. Make as many unique triangles using these segments. Determine when any three segments make a triangle. |
Fraction
Tracks In this 2-player game, students take turns racing to the end of each fraction line by moving one or more of their markers to a given fraction value. |
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Buffon's Needle
Surprise The challenge here is to see if the students can make a prediction about the likelihood of toothpicks landing on lines when dropped randomly. And it's connection to π. |
Jinx
Puzzle Pick a number, Add 11, multiply by 6, subtract 3, divide by 3, Add 5, Divide by 2, Subtract the original number. What did you get? Why is this called the Jinx puzzle? |
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Family
Fractions Today you are going to be a fraction that lives in Number Town. There are 5 families in the room. Your task is to find your family members. |
Exterior Angle of a
Triangle What is the relationship between the exterior angle and the non-adjacent angles of a triangle? |
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The
Factor Game Split the class into 2 groups and assign a captain to each group. On the white board tape 16 3x5 cards numbered from 1 to 16. Players take turns picking cards. |
Pick's
Law Discover an equation that determines area by counting the number of boundary points (B) and the inside the polygon points (I). |
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Estimating Heights In a letter a professor asks your class: Is there a way to predict the height of a person by just knowing the length of the radius bone? Your students will need to to measure to find out. |
Crickets Can predict the temperature by knowing a cricket's chirps per minute? (Chirps will greet you.) |
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Dice Races In this activity you will use a Scratch Applet to roll two cubes many times. The object is to see if you can predict which number will come up most often and win the race. |
Measure the Earth In measuring the circumference of earth, would you need to walk around the world to find out? Do you think you can do it with just a meter stick in one location? Try this project to find out! |
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Math Stories with a Surprise Twist My last CLIME presentation. It runs 20 minutes and 57 seconds. |
The Shrinking Mississippi River The goal of the lesson is to get students to understand and appreciate how graphs can tell meaningful stories. |