6. Work in groups. Play a speed game. Who is the fastest to: 1 name four things that run on batteries? 2 say four different things you can do with a phone app? 3 sing four different ringtones from your friends' and family mobiles?

This is a group activity, here are some possible answers: 1. Name four things that run on batteries: * A remote control * A flashlight * A toy car * A watch 2. Say four different things you can do with a phone app: * Play games * Edit photos * Order food * Send messages 3. Sing four different ringtones from your friends' and family mobiles: This requires knowing the ringtones that your friends/family use.