While computational technologies are transforming the professional practice of mathematics, as yet they have had little impact on school mathematics. This pioneering text develops a theorized analysis of why this is and what can be done to address it. It examines the particular case of symbolic calc[...]

Now available individually in new digest-sized paperback editions, the first four books in Le Guin's magical series chronicle four young cats with wings who leave the city slums in search of a safe place to live.[...]