NZMaths, a New Zealand teacher resource, provides lesson plans for students in algebra, geometry, measurement, numbers, statistics, logic and reasoning.

This New Zealand Problem Solving website is an outstanding resource for lesson plans. They are organized into the following categories: algebra, geometry, measurement, numbers, statistics, and logic and reasoning.

An article written by Stever Robbins discussing how to become a critical thinker. This is written from a business perspective but the ideas can easily be applied to education.

Use this interactive game to improve your knowledge and understanding of patterns and algebra. Can you describe a rule to follow where you make the least moves? Just follow the instructions below it.

Play these pencil and paper games to engage learners in critical thinking and reasoning. Written directions are provided along with colorful animation to explain in detail how each game is played and possible strategies needed to win.

Kids learn the basic rules and strategy of the game of checkers on this site.