Step 1.
For the article "How People Learn" please answer/comment on 2 (or more) of the following questions?

a) What was obvious about what was written?
b) What was valuable about what was written?
c) What did you question/disagree with about what was written?
d) How will you remember what was written?

Step 2.
Find someone who has provided an answer/comment and engage in
a discussion by
a) asking a new question
b) respectfully challenging a point
c) adding something new to the conversation
d) asking for evidence to support a claim

Above all, you want to add comments that will help build knowledge