Thanks Chrys! Great ideas... I will post these beside my kid's area as a reminder for us.

Which reminds me -- we provide a smartie for each sentence. We do stuff like "I don't know if you can stand writing 3 words before having a smartie -- well, if you need it, go ahead. But if you can wait till 4 words... "

We also try raisins or grapes or other small pieces of food. Which is ok as long as it is healthy.

(I can imagine if my younger self had done this, that I would eat a bag of chips, 1 chip a sentence, during essay writing time. Just kidding!)

I second the chewing gum, if your child is into chewing gum.