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Find here free online math videos on proportionsrelated topics: solving proportions, unit rate, proportional relationships, and scaling geometric figures. These videos are suitable for prealgebra / grade 7, and are aligned to the Common Core standards concerning proportions in grade 7 math. The videos are recorded in highdensity (HD) and are viewable both here as well as at my Youtube channel.
72 pages (includes answers) PDF download $4.00 Printed copy $11.80, b&w 
Math Mammoth Ratios, Proportions & Problem Solving
Sample pages (PDF) Contents and Introduction Solving Problems Using Equivalent Ratios Scaling Figures 2 Problem Solving with Diagrams, part 1 Ratio Problems & Bar Models 2 Buy at Kagi Buy at Lulu 
The videos match the lessons in my book Math Mammoth Ratios, Proportions, and Problem Solving (Blue Series book), or the lessons in chapter 2 of Grade 6A. In any of those books, you will get MANY more practice exercises, word problems, and puzzles than what are shown in the videos, and also some lessons that are not in covered in this set of videos.
72 pages (includes answers) PDF download $4.00 Printed copy $11.80, b&w 
Math Mammoth Ratios, Proportions & Problem Solving
Sample pages (PDF) Contents and Introduction Solving Problems Using Equivalent Ratios Scaling Figures 2 Problem Solving with Diagrams, part 1 Ratio Problems & Bar Models 2 Buy at Kagi Buy at Lulu 
By Maria Miller
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