Hello Amgad! I assume you mean "poorer" in the sense of poor academic performance. Offering a poor performer less time to complete an activity can be effective if you modify the activity. For insnce, you could break the activity down into smaller, easier parts for the student to complete. Each part would take less time, and they might be easier to complete. Completing "mini-steps" mgiht be a confidence booster, and it could help the student eventually grasp the overall procedure or concept.
Carey
