Grade or No Grade — Probability & Percentages Game (Grades 5–8)
Pick a homework, reveal a few others, then decide: take the teacher’s offer or risk it for a higher grade. This fast, replayable math game builds percent sense, averages, probability intuition, and decision-making—great for warm-ups, stations, or at-home practice. Play through 9 weeks to earn a final average and letter grade. Free, browser-based, and classroom-friendly.
Grade or No Grade
100% → 55%
50% → 0%
Final Results
About the Game & Learning Targets
In each round, you choose one hidden “homework,” open others to see the possible grades (0–100%), and then accept or reject the teacher’s offer. After 9 weeks, your final grade = average of weekly results. Students practice:
• Percentages & mental math (quick comparisons)
• Mean/average and how individual results affect it
• Risk vs. reward and simple expected value reasoning
• Strategic thinking and perseverance