First of all, is the group legitimate? Is it really going to give the money to schools or is it just a fraud group? Sometimes, interest groups make use of human's drive to help one another and profit off of it. So it's the best measure to know whether the interest group is legit or has a sponsor backing them up (that is also legit).
I would also like to know what school they are referring to. Will it be donated to an elementary school, middle school, or high school? And how many schools will they be able to donate to?
Next is what exactly are they going to improve in that school. Will they improve the equipment and facilities? Will they build new buildings? Or will they create projects to better the students' studies?
There is also the question of how much percentage would each school receive? Will the money be divided evenly from school to school? And what percentage will go to the school and stay with the interest group? Frankly, the group needs financial support as well so it can't give everything away to school unless there is a sponsor.