Computing the tensor product of two matrices A, B is quite straightforward through A.tensor_product(B).
What about computing the tensor product of some field extensions Q[X][X2−3] and Q[√3] over Q?
Or perhaps the tensor product of some ring of integers OK of a field extension K and Z/pZ over \mathbb{Z}.
Or other examples of what can be done in Sage. Not necessarily as constructive, but illustrative enough to aid in studying Tensor products.