I am a HUGE proponent of using manipulatives and hands-on activities to teach math (and other subjects) in ALL grade levels! Just because students are older does not mean that abstract thinking and understanding is automatic. Sometimes, they just need to put their hands on it in order to fully grasp it.
So today, I made a duct tape number line!
Like it? Make your own duct tape number line and use the number cards from this freebie: