INSTRUCTIONS
Multiply Fractions uses circles to demonstrate multiplication of fractions.
You can input the two factors for a multiplication of fractions example. The first factor must be less than 6 and the second factor must be less than 5.
If you want just a whole number for the first factor, type in 0 (zero) for a numerator. If you do not want a whole number, type in 0 (zero) for the whole number. Do not type in 0 for the denominator.
Examples in this program show a whole number times a mixed number.
Suggestions:
Demonstrate reciprocal or multiplicative inverse with 1/3 as the first factor and three(3) as the second factor. Notice the picture of the product one(1).
Demonstate Zero(0) as a factor. Use 2 1/3 for the first factor and then 0 as the second factor. You get a good picture of what 0 looks like as a product.
Demonstrate 1 as a factor. Use 2 1/3 for the first factor and 1 as the second factor. Here, you have demonstrated one(1) as the identity for multiplication.
You can demonstrate the distributive property with 2 1/3 X 3.
(2 + 1/3)X3 = 2X3 + 1/3X3 = 6 +1= 7
Here, you have distributed the factor 3 over the two addends 2 and 1/3 and you have a good picture of the product 7.
On the left is a <COLOR OFF> button. This button toggles with <COLOR ON>. Turning off the color in the product. This will allow the student to demonstrate the size of the product.
The <EXPLAIN OFF> button toggles with <EXPLAIN ON> Explain will show the two factors in fraction form, if necessary, and the product numeral.
WINDOWS™ COMPUTERS
You may copy the screen by pressing <Print Screen> on the keyboard. This copies the screen into Windows Clipbboard™. The screen can then be pasted into Windows Paint™ or your favorite imaging program. Windows Paint™ will allow you to crop, printed or save the image.
Windows 7 users can use the Snipping Tool™ to capture any part of the screen you wish. These images can be edited and saved in PNG, GIF(recommended) or JPEG formats.
