New Scientist1d
Maths quirk explains why crosswords are so hard – until they aren't
The process of solving a crossword puzzle is mathematically similar to well-studied physical systems – but one property makes ...
thetechedvocate.org2d
30 Jokes to Make Your Fourth Grade Class Crack-Up
Spread the loveLaughter is the best medicine, and there’s no better way to get your fourth-grade class laughing than sharing ...
BBC1d
Radio 4 - Listen Live - BBC Sounds
20 devilish questions to test your knowledge of the Shipping Forecast. The Shipping Forecast Centenary A collection of programmes and features celebrating 100 years of the Shipping Forecast. 25 ...
National Council of Teachers of Mathematics1d
Principles and Standards
A comprehensive and coherent set of mathematics standards for each and every student from prekindergarten through grade 12, Principles and Standards is the first set of rigorous, college and career ...