Just because kids today are well-versed in texting and emails doesn't mean they shouldn't learn how to write a friendly letter! Reinforce their letter-writing skills with a lesson focused on the elements of a friendly letter, as...

Enter your zip code, and find out about your ecoregion, a unique combination of living and nonliving factors that set your landscape apart and determine what will flourish there.

This article contains information regarding the em-dash, the en-dash, and hyphens. Many examples are included. Site is extremely detailed and thorough.