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http://math.rice.edu/~lanius/proportions/  


Cynthia Lanius  
Activities designed to help students understand the concept of ratios, using the Internet. Activities may also be printed out if computer access is not available. Students are expected to: use multiplication and division of whole numbers to solve problems, including situations involving equivalent ratios and rates; use ratios to describe proportional situations; represent ratios and percents with concrete models, fractions, and decimals; and use ratios to make predictions in proportional situations. Part of Lanius' extensive math lessons.  


Levels:  Late Elem. (35), Middle School (68) 
Languages:  English 
Resource Types:  Lesson Plans and Activities, Problems/Puzzles 
Math Topics:  Ratio/Proportion, ProblemSolving 
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