Yes! The time has come! We are practicing multiplication. This week, we will be reviewing the threes and moving onto the fours. You can help improve your "multiplication reflexes" by practicing for 5-10 minutes every day. A few of my favorite sites are ones that allow you to focus on a specific set of multiplication problems:

Learn your Tables
Jungle Jim
Car Wash
Math Magician (this one has a timer!)
Interactive Games Galore
If you scroll down this page, you'll find many more, including 'Bonk the Mole' and 'Math Models'!
And of course there are many sites located on the third grade web page as well (including many of the ones I've listed).

The key is to make practice fun and consistent!