This was a fun website to show my student and have them figure out what is really happening behind the "magic."
I was very much freaked out that first few times I used this. Especially because I had headphones on and it makes a pretty creepy noise.
My students liked trying to figure out what the rule was. I did it as a whole group this year and asked students to pick a number and try out their theories on what was happening.
For this next year, I think I will make it a small group activity.
Anybody have anything similar to this to share? It is different way to get students thinking mathematically and start seeing patterns in numbers.