These comments were posted on 01/18/12 by Josh Krzysiak, a math teacher in WA. Since comments are hidden (unless you click on them), we are posting them again. -- NumberFest
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Numberfest is a great way to get kids involved in math and more specifically number sense. I teach 4th grade and my students love being able to figure out the puzzles. If you want your students looking at numbers from different perspectives, giving them a strong number sense, then use these puzzles. As a bonus, students will be engaged. 

Josh Krzysiak