<p>Kristine Nannini points out information on a student data sheet she created to her fifth grade class at McGrath Elementary in Grand Blanc, Mich., on Sept. 14. Nannini spent her summer creating her own charts and student data sheets. It was something she imagined other teachers across the nation would want. So she decided to cash in on her prep time and sell her materials on teacherspayteachers.com.</p>

October 14, 2012