Conversation so far:
Why is the first article of the constitution important
Article I vests all legislative powers in the Congress—the House of Representatives and the Senate. The Great Compromise stipulated that representation in the House would be based on population.
what about the second article of the constituion why is it important
It ensures civilian superintendence over the military—and, as such, the subordination of the military to civilian (and democratically accountable) control.

Question: how many articles all together
Self-contained rewrite: how many articles are in the constitution