This month's column sees a return to dynamic geometry. Daniel Scher presents a “proof,” which he claims is rigorous, of why the midpoints of the sides of a quadrilateral, joined in order, produce a parallelogram. Do you agree? Our second tip is a worthwhile introductory activity for any group new to a particular technology. Susan Hvizdos challenges us with a TI-83 Plus Scavenger Hunt.
This department offers a forum where teachers can share innovative classroom activities and ideas related to teaching and learning mathematics using technology. Ideas using all types of classroom technology are welcome.