At $239, Recordex’s iMMPad SE is an inexpensive way to add a pen to a lesson plan. The 6- by 8-inch tablet, weighs 10 ounces and lets teachers roam about 30-feet from the host computer. There are 16 customizable instant launch buttons and then pen can record 1,024 levels of pressure. There’s software for PCs and Mac computers. It comes with lots of useful software and the battery can last a full school day of lessons.