A source to relate math with science is the Cambridge Physics Outlet. Their number is 1-800-932-Labs. I have reviewed a car and ramp with photo- timers with my students. Students were able to relate calculations with velocity and acceleration of a car traveling down an incline. Different weights were also used to examine the effect of weights on the car's velocity. The company provides lesson plans, scoring rubrics, and a teacher's guide. I strongly recommend purchasing the teacher's guide since the lessons are contained within. The students truly enjoyed integrating the math with science and technology. The company has many other programs as well that integrates math with science. The lesson guides are also designed for students with different levels of ability. Separate lessons plans are provided grades 5-9, grades 8-12, and grades 10-college. Several additional programs available from the company are: simple machines, harmonic motion, the elements of the periodic table, sound and music, and electric motors.