�Mathematical Circle Diaries, Year 1: Complete Curriculum for Grades 5 to 7.�
The book is for parents and teachers who would like to expose children to the type of mathematics that stimulates development of logical thinking, creativity, analytical abilities and mathematical reasoning.
The book, which is organized as a collection of weekly lessons, includes detailed lectures and discussions, sets of problems with solutions, and contests and games.
The material is intended for students in grades 5 to 7. It can be used by teachers and parents with various levels of expertise who are interested in teaching mathematics with the emphasis on critical thinking.
The book contains everything you need to teach a math circle or a math club for a full year.

The book on internet: http://www.amazon.com/Mathematical-Circle-Diaries-Year-Curriculum/dp/0821887459
The book review on cut-the-knot: http://www.cut-the-knot.org/books/Reviews/MathCircleDiaries1.shtml