Push Pull

  

I've been using hula hoops to help demonstrate Venn diagrams to infants children for a few years. It's really helpful for whole-class/group learning. 

Students sit in a circle with the hoops separated. We first categorise the images and make a pile of those which fit both. Then I have a students physically move the hoops and overlap them so that we can complete the Venn. 

Here is one we did recently on 'Push and Push' forces:

Here are some of the images I used for the Venn diagram (source: google images).