> It was very operational, you calculate, you manipulate concrete data. In French books it's all theorems and concepts.
"¿Por qué no los dos?" as they say? One can also detail how to "calculate" and "manipulate concrete data" in a rigorously correct way, involving precise concepts and perhaps some theorems. (Though an overemphasis on theorems is not necessarily good, either. Sometimes it can even signal a lack of attention to the actual "rules of the game" one is ultimately supposed to be studying, while a focus on direct manipulation would perhaps tend to avoid this. A good balance of the two styles is perhaps best.)
"¿Por qué no los dos?" as they say? One can also detail how to "calculate" and "manipulate concrete data" in a rigorously correct way, involving precise concepts and perhaps some theorems. (Though an overemphasis on theorems is not necessarily good, either. Sometimes it can even signal a lack of attention to the actual "rules of the game" one is ultimately supposed to be studying, while a focus on direct manipulation would perhaps tend to avoid this. A good balance of the two styles is perhaps best.)