This activity is designed to be a self-checking assessment for students as they work on algebra and segment proofs. When answers to two-column proofs are entered correctly, their answer will turn green, but when incorrect, their answer will turn red. In addition, the progress of each student is tracked throughout the activity, showing a red progress bar when their score is less than a 50%, a yellow bar between a 55% and 75% and green when a student's progress is above 75%. This activity include