On any given sunny day, Courtney Vanover's third graders were like alarm clocks, making sure everyone in the room knew when 9:30 was approaching. Why? Because they were participating in a yearlong science project to answer the question, "Where is the tip of the shadow of the school flagpole each morning at 9:30?" Although they did not…

One tool for enhancing students' work with data in the science classroom is the measure line. As a coteacher and curriculum developer for The Inquiry Project, the author has seen how measure lines--a number line in which the numbers refer to units of measure--help students not only represent data but also analyze it in ways that generate…