I dont think so that schools should offer cash bonuses in results of good scores, rather than they should be offering scholarships, certifications and appreciation awards. As offering cash at such level will create greediness in them, whereas we need to appreciate them for their efforts and all.
* I do not think that cash bonuses should be awarded.
It would be much more pragmatic to offer scholarships, certifications and appreciation awards.
Offering cash might make them greedy.