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The Healthy Food Slide Rule (HFSR) is a new educational tool designed specifically for use by school children in grades 4-6. The HFSR teaches the importance of including the 5 food groups and the importance of complying with appropriate portion sizes as presented in MyPyramid.1, 2 The portion size information included in the HFSR combines the healthy eating and physical activity messages offered by MyPyramid for Kids.3, 4 The new tool can be easily incorporated into existing math lessons (weights, measures, and fractions), into language arts lessons, or into science lessons.5

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This is an author-produced, peer-reviewed version of this article. © 2009, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License ( The final, definitive version of this document can be found online at Journal of Nutrition Education and Behavior, doi: 10.1016/j.jneb.2009.07.006