My Learning Station Problem Solving Cards Grade 4 - Prijzen

Unendlichkeiten

Das Unendliche gehört von früh an zu den tief rätselhaften Vorstellungen. Die berüchtigten Paradoxien Zenons (etwa ?Achill und die Schildkröte?) gewinnen ihre trügerische Überzeugungskraft aus dem Mys...

The Last Recreations

Of all of Martin Gardners writings, none gained him a wider audience or was more central to his reputation than his Mathematical Recreations column in Scientific American - which virtually defined the...

Design 4

Creative Haven Textile Designs Coloring Book

Inspired by vintage printed fabrics from the 1950s and '60s, 31 highly detailed designs provide plenty of coloring variety. Retro motifs include butterflies on a swirling floral background, rag dolls...