When I worked in a school, back in the day, during National Literacy week, we were sent huge posters to display within school, advertising National Literacy Week, and how it would concentrate on Vocablary. Sad to say, it was sent by the Ministry for Education...
I also spent weeks, teaching my DD that it was should have, could have, would have, and then received a letter from her school advising me that I should of received her school report by now. AARRGGHH!! I also had to check the spelling list she had to learn every week, sent home by her teacher. Sad to say, I had to cross out the incorrectly spelled words and insert the correct one, before she could start learning them. She now has a Masters in Education and a BA in English. It makes me smile when she rings me to check a spelling!