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Browse Elementary Projects
Stars indicate particularly interesting answers or
good places to begin browsing.
 Demonstrating Inertia [10/10/1995]

A hole is bored through the exact center of the earth from the North Pole
to the South Pole, and a mass is dropped into the hole in the exact
center. What happens next? Do you know of a project that can demonstrate
the results to fifth graders?
 Estimating the Number of Jelly Beans in a Jar [2/18/1995]

I'm doing my fifth grade project on probability. I need help
naming/finding the reason why the average of the guesses of how many
things are in jar is a good prediction of the exact number of things in
the jar.
 Using an Abacus [1/12/1996]

Our fifth grade class of gifted and talented math students is trying to
figure out how to use an abacus.
 4th Grade Estimation Problems [4/19/1996]

What types of problems exemplify using order of magnitude in estimation
and compensation in estimation at the fourth grade level?
 6th and 3rd Grade Math Resources [11/2/1994]

My sons, in 6th and 3rd grade, love math. Is there a Web forum,
downloadable problems, or how do I get them involved?
 Breaking the Sound Barrier [10/21/1997]

I am trying to find a way to incorporate breaking the sound barrier into
a math lesson for my third grade class.
 History of Numerals and Counting: Bibliography [11/18/1996]

Where do I find information on different systems of measurements?
 Magic Squares for 3rd and 4th Grade [11/5/1994]

HELP  I am an administrator with a grade 3 teacher for a wife. Her
children love to do Magic Squares (rows, columns and diagonals add up to
the same number)  is there an easy way to create these squares, suitable
for grade 3 or 4? Is there a source of examples?
 Magic Squares puzzle [11/9/1994]

Can you please send me the Puzzle (and the solution) called the Magic
Square?
 Multiplying with an Abacus [3/12/1996]

Is it possible to multiply with an abacus? My students have searched for
an hour and found only addition and subtraction.
 Numeral Systems and Representing Numbers [10/30/1998]

Can you tell me the different ways the number 8 is represented? For
example, what about different numeral systems?
 Pentominoes [11/1/1994]

I'm interested in learning about pentominoes  creative uses in class,
solutions to the 6 X 10 rectangle, etc. Have any ideas? A bibliography to
share, perhaps?
 Plane Symmetry [10/3/1995]

I have to do a mathematics paper on plane symmetry and also a challenging
activity related to this appropriate for grades four to six. Can you
suggest a possible resource?
 Remove Five Toothpicks, Leave Three Squares [09/16/2002]

If you have six squares made up of toothpicks, how can you remove five
toothpicks and leave three squares?
 Weighted Coin Project [02/01/1997]

Analyze the results from flipping a nonweighted coin and a weighted
coin.
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