Instead of saying as comparing, use a reward system to motivate them instead.
Like, if you score 10 marks more than last round, give them a improve rewards, make sure it's something they want and don't always have like, maybe pizza hut, only eat during special occasion, and she love it, hence she will be motivate to score better next round.
If score 80-90 i will give u a budget of $20.
90-100 budget of 50. To buy toys or anything they want, (of course it's something legal or educational, etc) budget can set according to ur comfort level. What kind of test what budget, more impt test, higher budget.
There is many ways to deal with different situation, comparing will hurt them, so
Motivate and reward them is better ways.
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