history: My 6 year old son is making very good progress in learning how to swim. My 6 year old son is making very good progress in learning how to swim. Good for him! That's a very valuable skill to have_comma_ good on you for teaching him so early.
current: At this age, they learn so quickly. That is nice.
next: Does he seem to enjoy being in the water, or does he resist you a bit?