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A Celebration of 10
A gorgeous exploration that will fascinate readers of any age. Dick Tahta was one of the world's great mathematics communicators and in his papers he left details of a proposed …
Navigation
Brain Games from Walter Joris
The Berlin Wall
We all love to tell stories to kids--and later kids love to explore what they love to read. This tale of the Berlin Wall is a story of a key event in the history of the world. And …
Infernal Triangles
The American West
We all love to tell stories to kids--and later kids love to explore what they love to read. This tale of the American West is a familiar story to adults, but to children it is new …
Sudoku Extended
So You Think You Have Brains?
Newspapers and similar media often feature crossword puzzles, word-searches, general knowledge quizzes, problems on word games like Scrabble and other puzzles, typically on 'brain' …