In one example, third-grade classes that held 21 students, now hold 27.
He sat on a rug in a third-grade class where the topic was reading.
He remembers being the only child in his third-grade class not to get a flu one year.
I had been there nearly two years earlier, accompanying my daughter's third-grade class on a field trip.
One casualty, a third-grade class, has had four teachers this year.
He started by helping his daughter's third-grade class learn about zoning.
If your character gets a phone call and goes off to teach a third-grade class, we'll know she's a substitute teacher.
I tried to remember the name of everyone in my third-grade class.
They sound like the bad children in the third-grade class I used to teach.
This year she may be the only girl left in her third-grade class.