VIDEO #1 - Comparing the Constant of Proportionality
https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/modal/v/comparing-proportionality-constants
VIDEO #2 - Interpreting the Constant of Proportionality
https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/modal/v/interpret-proportionality-constants
PAGE 2 - CORNELL NOTES w/ 3 sentence Summary
VIDEO #1 - Proportional Relationships - GRAPHS!
https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/cc-7th-proportional-rel/v/identifying-proportional-relationships-visually