The project that included my book, Oh! La vache! was awarded first prize by La main à la pâte, an organization which was begun and is presided over by George Charpak (Nobel Prize, Physics, 1992) in order to promote the sciences in schools.
To receive the award, we took 16 of the children who had participated in the project to (the French Academy of Sciences, in) Paris for a day. It was exhausting, but exhilarating. And the experience has definitely given me the impetus I needed for a couple of other projects I've been working on.
In other words: Back to the drawing board!