"Battleground schools" by Mathison and Ross was a very enlightening read. I was not aware of the many pushes in mathematics education over the years, assuming that it stayed relatively constant until the most recent curriculum shift. I think that view was partially motivated by conversations from my elders. My family received a standard British Education in the Caribbean, and likewise with our friends from the UK, India, Hong Kong, etc. From those discussions I had understood that the North American Education system was slightly lower in some respects to the British System, but didn't know of the movements that polarized educators- especially for math! I thought that the shifts were in connection to subjects such as language arts, English, Drama, Music, Social Studies, etc.