# Fractions

Students graduating from primary school grade 5 do not understand the concept of fractions. We are trying to help them understand and here is the software and aids we are using:

Two games from the Center for Game Science, Department of Computer Science and Engineering, University of Washington stand out from the others.

Treefrog Treasure is a free online puzzle game that teachs fractions and numberline concepts. http://www.centerforgamescience.org/site/games

Refraction is a free online puzzle game requires the knowledge of fraction to split and combine laser beams to create various power levels. http://games.cs.washington.edu/Refraction/

Fractions on the number line:

Place fractions on the number line: www.mathsisfun.com/numbers/fractions-match-frac-line.html - there are lots of other fraction resources here.

Fractions on number line game: visualfractions.com/FindGrampy/findgrampy.html

Here are some nice online examples for simplifying fractions http://www.mathwarehouse.com/fractions/

Here is an online game for identifying fractions and equivalent fractions. Play the online Fraction Ball game here http://themathgames.com/

Their Fraction Matching game is also good.

How do fractions relate to the number line? Show that 3/4 + 3/4 = 1 1/2 by placing fraction bars on top of a number line. I created the documents below to demonstrate this concept.

Print out the files below. Use 3M™ Super 77™ Multipurpose Spray Adhesive to glue these pages to foam core then cut them out.

I use two 2-cup volume measuring cups. Pouring 3/4 cup of water into the other measuring cup shows a total volume of 1 1/2 cups. The children like to experiment with this on their own.