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 $\mathbb{Q}[X][X^2-3]$ and $\mathbb{Q}[\sqrt{3}]$ over $\mathbb{Q}$?
Or perhaps the tensor product of some ring of integers $\mathcal{O}_K$ of a field extension K and $\mathbb{Z}/\mathbb{pZ}$ 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.