Sunday, October 31, 2010

Flower Math Challenge

A florist buys roses at $0.50 apiece and sells them for $1.00 apiece.  If there are no other expenses, how many roses must be sold in order to make a profit of $400?  How did you figure that out?

Cuckoo Bird Math Challenge


If a cuckoo clock cuckoos on the hour (the number of times for that hour) and on the half hour (once each half hour) how many cuckoos does it make each day?

Coin Challenge

How can 3 dimes and 9 pennies be placed in three rows with 23 cents in each row?

100 Coin Challenge


Put 100 coins on the table.    Make the widest structure that you can that stands at least 1 inch tall with the coins.  Every coin must touch another coin and try to have the fewest coins touching the table.  

When you’re done, check out this.

Saturday, October 30, 2010

Pencil Math Challenge

An average pencil can write about 50,000 words.  How many words can 8 pencils write?  How many can 80 pencils write?

Fraction Math Challenge

Thursday, October 7, 2010

Place Value Lesson Plan

Numbers are made up of digits in the same way that words are made up of letters. Digits can be any number from 0 to 9. 

Place Value is the value given to the place a digit has in a number.

The number 432 (four hundred thirty-two) is made up of the digits 4,3, and 2. Each digit has a special value which depends on its place in the number.

These words are called place value headings.
ten thousands thousands hundreds tens ones
    4 3 2
The number 432 is made up of :

four hundreds
three tens
and two ones

You Try:
Think about how you would say the number 68,143. Copy the chart and write the numbers in the correct column.
ten thousands thousands hundreds tens ones

For more practice click here.