Mistakes in Math: Expected, Respected and Inspected

Years ago, when beginning some work on percentage with some HSE students (they were called GED students at the time), I posed the following problem: Veronica’s math class has 25 students. If 7 of them identify as men, what percent of the class does not identify as men? I used it as a quick assessment … Continue reading Mistakes in Math: Expected, Respected and Inspected

Deepen Conceptual Understanding in Math with Virtual Manipulatives (and it’s fun!)

The National Library of Virtual Manipulatives (NLVM) is a website that houses a goldmine of visual models and interactive virtual manipulatives for mathematics instruction.  The library began as a project in 1999 with support from the National Science Foundation and was developed at Utah State University. It has since undergone numerous revisions and additions and presently … Continue reading Deepen Conceptual Understanding in Math with Virtual Manipulatives (and it’s fun!)