By the way, I've turned it into a math lesson led by the questions, "How many boys and girls are in our class? How could we find out?" Someone typically suggests getting into groups. Then someone says that we should get into lines. After lining then up and creating a graph-like situation with bodies, we make the information permanent on paper in the form of a graph with their pictures. This is followed with the question, "There are 10 boys, 13 girls, and 1 teacher in Miss McMorrow's class. How many people are there altogether? Solve it in a way that makes sense to you." And they've been launched into their first math journal experience.
P.S. I've shared the picture of my first grade class here on my blog before, but I hadn't shared how it turned into a math lesson. I decided the math part was worth mentioning.