Three preservice teachers used virtual manipulatives during clinical interviews with students of elementary school age. The technology exposed students' problem-solving strategies and mathematical understanding, promoting just-in-time teaching about the target content. The process of completing and reflecting on the interviews contributed to growth of the preservice teachers' technological pedagogical content knowledge.
Pamela Edwards Johnson, Melissa Campet, Kelsey Gaber, and Emma Zuidema
Terry L. Kurz and Jorge Garcia
An alternative method for teaching prime decomposition explores using tools rather than factor trees.