Estigrade is an experimental grading system designed to develop students' metacognitive skills by incentivizing accurate self-assessment. Before taking an exam, students estimate their expected score. Their final grade is then adjusted based on the accuracy of this prediction.

The formula balances two components: a reward for accurate estimation and a penalty for inaccuracy. When students correctly predict their performance, they receive bonus points. When they're off the mark, points are deducted.

This approach encourages students to develop better self-awareness about their knowledge and preparation level, ultimately leading to improved learning outcomes and more realistic self-assessment skills that are valuable beyond the classroom.