Visual Aids For Learning

I need solid, hard reality that the visual aids to improve the overall learning process.

The kind of what I look for something like 50% of students say they pay more attention when their teacher uses colorful diagrams

Something like this ... I'm doing research on visual aids. Thank you!

I do not have an exact answer, but you can find what you're looking for here:

http://learning-aids.com/our-program

http://chiron.valdosta.edu/whuitt/materials/tchlrnmd.html