(1) Free Probeware Resources

(a) Audio analysis

(b) Vision analysis

Mona Lisa Illusion: Use the upside down images and have students practice observation skills (as related to scientifc investigation). Provide students with 3 minutes to list as many similarities and differences between the pictures.

Flip the images over, and discuss the importance of "PERSPECTIVE" in data analysis and making observations.

(c) Response time and estimation

First Attempt-

Second Attempt-