DS and DD are both in year 11 so have their GCSEs coming up shortly. Both are bright and of very similar if not identical academic ability and are predicted very similar grades.
Both are relatively hard working (although with a tendency to coast) but DH and I would really like them to knuckle down and push themselves to get the best grades possible.
We therefore came up with the idea of an effort-based reward scheme allowing them to earn treats for completing revision- e.g. 75 hours= a meal out, 150 hours= a night away etc.
However, both twins have suggested that instead, the twin who gets the best results should receive the whole cash reward. They are both competitive with each other and have said this would give them greater incentive to work harder.
My concern is that the twin who doesn't do as well will be doubly disappointed on results day as they will also get no reward. Should I go with the twins' suggestion?