Clickers in the Classroom

Clickers

Name that Brain Injury

Biological Influences Review

Caffeine Survey

Poll: Who is the most famous psychologist i...

Cell Phones as Clickers

• http://www.polleverywhere.com/my/polls

Cognition Unit Activities

Problem #1

B C

DA

E F

G

HI

J

Problem #2

BC

D

A

E

F

G

H

IJ

Ball in the Pipe • A swimming pool has a cover that is supported by

two heavy metal pipes in the walkway around the pool. One day when the cover supports are removed a tennis ball falls into one of the pipes. This metal pipe is two feet long, and is embedded into the concrete by the pool and cannot be moved. The pipe is vertical. At the bottom of the pipe is the tennis ball. The ball just fits inside the pipe. You cannot get your hand down into the pipe to retrieve the ball. Here is what you have available to you.

Ball in the Pipe

Your task is to remove the tennis ball from the pipe without harming the ball or pipe.

• a file• a light bulb • a jar of pickles• a monkey wrench• a hammer• a chisel• a box of Wheaties• 100 feet of clothesline• a coat hanger

Answer: Ball in the Pipe

• The simple solution is to dump the pickles and use the container as a pitcher to take water from the pool and float the ball to the top of the pipe.

The nine-dot problem

Join the dots with four straight lines without lifting the pen from the page

The nine dot problem – Scheerer (1963)

Unnecessary Constraints

Move only one glass to have them arranged so that full and empty glasses alternate.

Unnecessary Constraints

Move only one glass to have them arranged so that full and empty glasses alternate.

Two trains stations are 50 miles apart. At 1 pm on Sunday, a train pulls out of each station and the trains start toward each other. Just as the trains pull out from the station, a hawk flies into the air in front of the first train and flies ahead to the front of the second train, it turns around and flies towards the first train. The hawk continues in this way until the trains meet. Assume that both trains travel at the rate of speed of 25 miles per hour and the hawk flies at constant speed of 100 miles per hour. How many miles will the hawk have flown when the trains meet?

Changing the representation of the problem

Changing the representation of the problemTwo trains stations are 50 miles apart. At 1 pm on Sunday, a train pulls out of each station and the trains start toward each other. Just as the trains pull out from the station, a hawk flies into the air in front of the first train and flies ahead to the front of the second train, it turns around and flies towards the first train. The hawk continues in this way until the trains meet. Assume that both trains travel at the rate of speed of 25 miles per hour and the hawk flies at constant speed of 100 miles per hour. How many miles will the hawk have flown when the trains meet?

Most people approach this problem as one of distance. Instead change the representation and make it a problem of time. The trains will travel one hour until they meet, the hawk can travel 100 miles in one hour, therefore the answer is 100 miles.

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2. 3.

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5.6. 7.

Sleepy

Dopey

Sneezy

Doc

Bashful

HappyGrumpy

The Seven Dwarfs

Which is the correct penny?

Which is the correct penny?

Contact Information

• Kent Korek• Germantown High School• W180 N11501 River Lane• Germantown, WI 53022• Phone 262-253-3400• Email: kkorek@germantown.k12.wi.us