This is a simple sketch note or doodle note sheet that I created to add into my students' interactive science notebooks. On the top portion we discuss that as heat is added the temperature increases, which causes molecules to move faster, collide more frequently and with more force, and spread out (become less dense) which results in either the pressure or the volume increasing as well. We also discuss that as the volume increases molecules become less dense and have fewer collisions, resulting in a decrease in pressure.
Cut off the bottom to use the PTV rectangle as a visual device to remember the relationship between the three variables. Cover the variable you are not using, then slide the independent variable up or down and see how the dependent variable will respond. (covering T, for instance, and raising the volume side makes the pressure side go down)