Since concepts involving invisible, intangible particles are especially difficult for junior high students to understand, how does a student know that atoms, molecules, electrons, and ions really exist? Are these particles just the figment of someone's imagination?
I decided some years ago that students needed more than an explanation of a concept involving atomic particles. Pictures are helpful to serve as an extension of a verbal teaching method.
Winter (December) 1982
Iowa Science Teachers Journal
© Copyright 1982 by the Iowa Academy of Science
"The Atoms Family - or - Ionic Man,"
Iowa Science Teachers Journal: Vol. 19
, Article 3.
Available at: https://scholarworks.uni.edu/istj/vol19/iss3/3