Districts Change Policies to Embrace Twitter, Facebook

After spending the day practicing cursive writing and discussing how money moves through a community, Mike Ice’s 2nd graders at Dunn Elementary School in Louisville, Ky., took out their notebooks and described what they’d learned—in 140 characters or fewer.

Then Mr. Ice selected a few students to type their abbreviated reports on the classroom’s Twitter page—so that all the parents following their progress would receive a “tweet” about their day.

“We did cursive morning work, it was the letter D,”...