BUILDING THINKING
CLASSROOMS

BrainBashers  brain teasers, puzzles, riddles, and more

Brain Teasers I – a brain teaser a day (not all appropriate)

Brain Teasers II – a brain teaser a day (not all appropriate)

Brilliant – solve and discuss thousands of problems

Daily Skyscrapers – my favorite BrainBasher game

Feynman – long division puzzles

Hersam – brain teasers

Mathematics Contest Archive – from Waterloo

nRich – specialists in rich mathematics

Project Euler – 454 number problems

Problem of the Day Archive – University of Waterloo

Question of the Day – mixed bag

TestFunda I – puzzle of the week

TestFunda II – puzzle of the week

TestFunda III – puzzle of the week

Vur@li’s Blog – brainteasers and puzzles

Would You Rather? – asking students to choose their own path

ThreeAct Math Tasks – from Dan Myer

World’s Hardest Easy Geometry Problem – easy to start …

TIMES Modules – from Australian curriculum
BTC Tasks
Building Thinking Classrooms involves using highly engaging thinking tasks to initiate a culture of thinking. At first, many of these are noncurricular, but the culture of thinking is developed through their use so that curricular tasks then also become highly engaging! Below are some sample BTC tasks organized by grade band that are both noncurricular and curricular. See also the Card Tricks and Numeracy Tasks pages and BTC Books for more BTC Tasks!