Has anyone read "A Tour of the Calculus"? by David Berlinski? I read it and I really enjoyed the way he helped to link the ideas of the Calculus with real-world situations. I was wondering if someone could recommend a similar type of book about elementry algebra? My girlfriend really enjoys mathematics, but seems to be having a lot of conceptual trouble. I think it is due in part that she still needs to focus so much brain power on the actual math operations that the physical/conceptual stuff doesn't have room to cross over. Any ideas would be great. She is very interested in Chemistry, but she will definitely need to get a firm grasp on her Maths. Thanks.