I was wondering what other K teachers thought about Mailbox and Teacher's Helper for K. I had both when I taught 5th and Teacher's Helper was more beneficial with the worksheets for practice. I did use Mailbox some, the ideas were good, but not always grade specific, since it was intermediate and for 3-6. Do you use either of these magazines? If so, which? Do you think it would be helpful to get them for kindergarten?