Sentence 1: Today was my first day volunteering in my son's classroom. 
 Sentence 3: I helped and listened to a few kids read books 
 Sentence 4:  It was a wonderful experience 
 Sentence 5:  I look forward to doing it again next month 
 Option 1: It was exciting to see what he and his classmates did during the day. 
 Option 2: It was sad to see what he and his class mates actually did during the day.