
Sportclimbing Spain
8 + 2 – 3 = 7
That´s not how I used to teach mathematics when I worked in school some years ago. No, it´s how our group changed in terms of their entirety during the trip.
(Kilian, Anna, Heiko, Barbara, Sabine, Lukas, Elias, Me) + (Ben, Lu) – (Sabine, Lukas, Elias) = (Kilian, Anna, Heiko, Barbara, …








