The root of understanding

This probe investigates if students understand that density is independent of size and shape. While students may have an understanding of floating and sinking in general, the idea of density... See More

This probe investigates if students understand that density is independent of size and shape. While students may have an understanding of floating and sinking in general, the idea of density seems to elude them. In addition to the recommended lessons provided here, I have found that working with middle and high school students on developing their understanding of the particle nature of matter and its relationship to density using manipulatives helps them to better grasp the concept and the mathematical model of density.

Density is a tough concept

What I like is to have students look at several different scenarios that deal with density and see if students can accurately apply the concept. Students can often say the formula for densi... See More

What I like is to have students look at several different scenarios that deal with density and see if students can accurately apply the concept. Students can often say the formula for density, but this probe helps teachers see if students understand the concept of density.