Arrrrgghhh. Arina, you are absolutely right. Learning algebra and geometry teaches the requirements of logical thinking as does no other discipline.

This article made me crazy, but what makes me even more crazy is that there is no reason for students with reasonable intelligent to flunk algebra over and over. The problem is almost always bad teachers.

I will never forget the calculus teacher I had in college who asked me to stay after class one day and then informed that I was asking too many questions and slowing down his class. He told me that no one understand calculus. One only memorizes the equations. Classical example of a *rotten* teacher.