teaching number theory as remediation and enrichment

Yesterday I had a difficult day, my brain was not working completely. Although I'm on medication I thought "I want a pill." But I still went on and gave my facultative lesson of number theory to four elementary school children that have each different challenges. Although the first thing that leaves me when my brain has 'one of those days' is order (I'm more disorganized) and one child immediately felt more disorganised, they still enjoyed talking about numbers. One couldn't remember what it was what we are doing. Maybe I should write it down for him. We talked about if it's possible to divide by zero and why not. We talked about that even scientists can make mistakes with numbers. I was afraid one of the children might find it too difficult, because I tried to raise the level, but they followed. I made it easy enough and difficult enough at the same time. Don't ask me to put it on paper...