A third-grade teacher's instruction improves with two weeks of coaching. Students use fossil evidence and puzzle pieces to build an argument for continental drift. Observe a class of young scientists explore the scientific method in a lab about iodine and starch. A social media expert helps a teacher learn new ways to use technology in the classroom. Aiming for Excellence - Content Differentiation in 3rd Grade Science - Dr. Royce observes a lesson on water evaporation in Ms. Maronpot's class, gives her feedback, and visits again one week later. See the changes Ms. M makes in her lesson before and after the visit. Great Lesson Ideas - Continental Puzzle - Chandra Garcia uses continent-shaped puzzle pieces to teach her students about continental drift. Working in small groups and using fossil evidence, students must work cooperatively and find consensus among themselves to build their arguments. Great Lesson Ideas - Test for Starch in Liquids - John Orsulak's students work in groups using iodine to test for starch in an array of liquids. Students record and analyze data and conduct the test with their team. New Teacher Survival Guide - Technology in the Classroom - New teacher Patricia Paiva plans a lesson that incorporates technology with coach and social media expert Sheryl Nussbaum-Beach. Watch how the lesson goes and see the students' reactions.