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These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.

Eigen Square - Student Challenge Cards

This Eigen resource consists of 50 ‘Challenge Cards’ for children’s use. The cards are in sequences which each focus on a particular way of investigating the Eigen Square with the focus mainly being on two and three digit numbers.

* Challenge cards 1-12 focus in finding which two-digit numbers can be found.

* Challenge cards 13-23 focus on digits forming dominoes on a folded Eigen square.

* Challenge cards 24-25 look at finding three digit numbers with specific properties.

* Challenge cards 26-35 investigates finding horizontal, vertical and diagonal triples with specific properties.

* Challenge cards 36-40 involve folding the Eigen square to find properties (e.g. totals) of 2x2 and 3x3 squares.

* Challenge cards 41-50 contain a range of addition, sum and difference, multiplication, remainder, division and factor games that use the Eigen square as a board.

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