Teach the history of the atom to students with learning difficulties. Not only the atom but this method of teaching can be applied to any number of teaching topics. I've also incorporated this activity into my Atomic Theory Lesson, link in the article.
Atomic Structure Tabbed Flip Book for Interactive Notebooks
The atomic theory of matter tells us that a gas is made up of tiny particles called atoms (or molecules, which are combinations of atoms), which are constantly in motion, smashing into each other and the walls of whatever container they might be in.