Ratio and Proportion Tutor 
This Tutor will teach you how to think proportionally, an important mathematics concept for science as well as everyday life. You can enter any ratio and proportion problem and make your best estimate of the answer. The Tutor will provide detailed comments about your answer based on reason and logic. It will also make recommendations on how to think about proportionality and make reasonable estimates. The Tutor does not approach ratio and proportion as a process to be memorized. It presents ratio and proportion as an important and logical concept and an excellent opportunity to apply mathematical reasoning.
