Nimble With Numbers Grades 34 Author:Leigh Childs, Laura Choate Proving that practice can be fun, this series presents a treasure trove of interesting activities and games that reinforce basic number sense, operation sense, and number competence while encouraging problem solving. Each activity is easy to use and to adapt for extended use. Teacher Resource Guides deliver an abundance of suggestions, tips, and... more » ideas for classroom use. Grades 3-4« less