Ms. J,
I use this website as a teacher's resource.
http://www.charliefrench.net
I print off all of the lessons for reading/lang 4th grade, but they can be adapted down to 3rd. I haven't done any of the math, but I am sure they are good too. Each lesson has a focus on a specific strategy (like looking at the questions before reading the passage) and uses fiction, nonfiction and poetry passages.
Another site that some of our teachers use is brainchild.com