I am debating whether to provide some grammar resources that are semi fun or at least not deadly dull and encourage DS & DD (rising 4th graders) to polish their grammar skills. They are not bad and likely above average but decidedly lagging other abilities. I guess their grammatical errors bother me a bit.

One thing we all enjoy is the Grammar Girl podcast. My boys are 10 and 12 and it's a good fit. I find it interesting as well, and even though most of it isn't new, I enjoy it.