November 20, 2019

Puzzles: Introducing KenKen Puzzles

This page focuses on a way to introduce KenKen puzzles so that students see, focus on, and learn the logic, not just guessing. These puzzles give […]
November 20, 2019

Algebraic Thinking

Number tricks are fun for children. The fun, all by itself, is valuable, but is not mathematics. But understanding how the trick works is good mathematical, often algebraic, learning.
November 21, 2019

Puzzles: Who Am I Puzzles

Who-Am-I? puzzles give clues about some mathematical object — usually a number or a shape — and you are to figure out what the object is. […]
November 21, 2019

Guess My Rule

How to Play Guess My Rule games are games in which one person thinks up and gives examples of some “rule,” and the player(s) try to […]
November 21, 2019

Puzzles: KenKen Puzzles

KenKen(R) puzzles were not built into Think Math! but are a wonderful material to make regularly available to children. These puzzles give excellent arithmetic practice while […]
December 3, 2019

Puzzles: Logic Puzzles

Logic puzzles are used as basic exercises not only in mathematics but in law. The Law School Admission Test (LSAT) is full of logical puzzles, and […]
January 9, 2020

Puzzles: Mobile Puzzles

Mobile puzzles are pictorial representations of systems of equations; each beam that balances two sets of objects (representing variables as unknown “weights”) represents an equation. Children […]
January 10, 2020

What’s My Number?

Purpose: The most important purpose is to help children develop their attention, focus and concentration, and working memory (see What are students learning, below). Children also […]