They found resources like Khan Academy and they were able to fill in those gaps and master those concepts, and that reinforced their mindset that it wasn't fixed; that they actually were capable of learning mathematics.
Trovarono delle risorse come la Khan Academy, e riuscirono a colmare le lacune e assimilare quei concetti, e questo li portò alla giusta consapevolezza che in realtà erano in grado di imparare la matematica.