I've decided to bite the bullet and spend some time actually teaching year 7 (possibly year 8 and 9 as well) what a sentence actually is. Their punctuation is all over the shop cause they simply don't seem to understand what the purpose of a sentence is and so therefore where they need a full stop. Anybody got any tips on how to do this? Also, I have about 4 girls in my year 7 group who are faultless in their punctuation so this wouldn't really cater for them (I teach mixed ability). Trying to think what they'll gain out of this lesson. Thanks in advance for any help.