PROMETHEAN Activity: Images hidden behind TIC TAC TOE

This week, I trained new teachers how to make lessons for the  Promethean IWBs we have at school.
There are several features you can use and one of them is hiding/showing. A friend of mine , Rita, sent me a message yesterday asking for help because she wants to prepare an activity where she hides images behind numbers.

This is a tutorial I've made to show her how to do it.
http://screencast.com/t/7z7IwU0vPoO

The same software can be used in other IWBs, all you have to do is download the free version of ACTIVINSPIRE from http://www.prometheanplanet.com/en-gb/support/