Helpful info for Ratio & Proportions

Here is a good explaination of Ratios
http://www.thinkingblocks.com/mathplayground/TB_Ratio/tb_ratio1.html


Here is a video that explains how to solve a ratio & proportion word problem:
http://www.mathplayground.com/howto_ratiowordproblems.html


Some online practice - ranging from easy to hard. You choose.
http://www.thinkingblocks.com/mathplayground/TB_Ratio/tb_ratio7.html