Cat + mouse = scared mouse! That's a "mathematickle," a word game using the conventions of math in a way that's so surprising, poetic, and delightful that this book of 20 activity ideas won a 2009 Teachers' Choice Award. Clear instructions, reproducible handouts, and a table matching lessons to math and language arts standards ease the way into activities that both gifted and ELL students will enjoy. Math topics covered include number sense, estimation, measurement, money, addition, subtraction, multiplication, division, fractions, inverse operations, geometry, algebra, and graphing. Grades 2-5. Bibliography. Illustrated. Good Year Books. 136 pages.