Test your pupils' reasoning skills with several activities and a quick mystery to solve. Learners watch and analyze a few video clips that demonstrate reasoning in action, practice deduction with an interactive and collaborative...

Is Sherlock Holmes an inductivist or a deductivist? Users of this interactive to distinguish between inductive and deductive reasoning. They consider in various situations whether it is better to list evidence and then introduce a claim...

Investigate the attributes of polygons. A thorough set of lessons presents problem scenarios for elementary through high school classes. The first lessons focus on basic characteristics of polygons, including the line of symmetry. As the...

Part of a University of Toronto website, this page defines and describes deductive and inductive reasoning in solving mathematical problems.

From a larger college website, this page provides a good description of syllogisms as well as inductive reasoning.

A simple discussion of the differences between inductive and deductive reasoning. Helpful to anyone who is having difficulty differentiating between the two.

Purplemath gives a thorough explanation of proof by induction. The lesson explains, then works through several examples for the reader.

This site explains what deductive and inductive reasoning is. The site also explains abductive reasoning.

A very challenging game of strategy and skill from Backgammon Galore. The student plays backgammon against a computer program. Included is a page on instructions so the student can learn the game.

A "three star geometry problem" requiring knowledge of how to complete geometric proofs. The problem explains what the order of a vertex is and asks for the proof of a generalization.

Students produce a sequence, explore patterns and find a linear or quadratic equation for a given pattern. They use inductive reasoning to make conjectures about patterns. Students also find the Y-value of a function if the X-value is...

Based off of the hit television show NUMB3RS, this lesson has students examine maps of a crime spree in order to figure out if any locations have been unreported. The lesson is not math-intensive and instead forces students to use...