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Updated by Julie Brannon on Aug 24, 2015
Headline for Tools, apps, and sites for teaching critical thinking
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Tools, apps, and sites for teaching critical thinking

An Illustrated Book of Bad Arguments

This book is aimed at newcomers to the field of logical reasoning, particularly those who, to borrow a phrase from Pascal, are so made that they understand best through visuals. It contains a small set of common errors in reasoning which are visualized using memorable illustrations that are supplemented with lots of examples. The hope is that the reader will learn from these pages some of the most common pitfalls in arguments and be able to identify and avoid them in practice.

This work is adapted from:

An Illustrated Book of Bad Arguments by Ali Almossawi,, 2013 and was shared under a Creative Commons BY-NC license (

CYCLES, from 1st Playable Productions

This game is for adults of all ages -- great for higher ed / community college students.

The CYCLES games were developed with funding provided by the Intelligence Advanced Research Projects Activity (IARPA) and pursuant to Air Force Research Laboratory. It has been has rigorously tested against other games and against a video teaching the same material.


As the Captain of a new human settlement on Planet Braxos, shape the future of a new civilization while developing ethical reasoning skills. Quandary, the award-winning learning game, has landed on your mobile device!

Players find themselves immersed in a rich science-fiction narrative with a diverse set of characters and differing perspectives. When confronted by conflict, you must explore the many facts, solutions, and opinions to come up with solutions on the colony's behalf.

Quandary is perfect for youth, ages 8-16, but people of all ages will enjoy this game.

Working closely with educators and students, we've created a truly playful experience that maps to the Common Core State Standards. The game aims to develop skills that help children recognize ethical issues and deal with ethical situations in their own lives:

• Critical thinking
• Perspective-taking
• Decision-making
• Problem solving
• Reading
• Communication
• Collaboration
• Global awareness

Pacific Northwest Tree Octopus

Rare photo of the elusive tree octopus The Pacific Northwest tree octopus ( Octopus paxarbolis) can be found in the temperate rainforests of the Olympic Peninsula on the west coast of North America. Their habitat lies on the Eastern side of the Olympic mountain range, adjacent to Hood Canal.


Inspired by Carl Sagan's Baloney Detection Kit, the BaloneyMeter provides 5 short questions you should ask yourself before believing any claim.

Artwork by Bret Syfert.