For limited time (all August-September, wth! October too), I will send by E-MAIL a very especial treat for all secondary teachers that send a comment on this post about your
Number of students, grade and location
Simple, so just do it! The sooner, the better
Note 1: check your spam mail just in case.
Note 2: prohibit to reveal the source to third persons.
Note 3: lots of xoxo