Pictured below is a map of the world that describes how many mobile phones are in each country.
What patterns do you notice? What countries have the most mobile phones?
There are more than 3 billion mobile phones in the world today. Below is a bar graph illustrating the number of smartphones that people have bought per year between 2007 and 2023.
- What story does this data tell you?
- What do you think are some real-world causes for the trends you notice?
Before and after lithium-ion batteries
New interactive: Checklist of mobile phone functionalities
Can you think of anything else you can do with your phone? Which phone do you think would be able to do that?
- Alarm clock
- Check schedule
- Check messages
- Unplug your phone
- Put it in backpack for school
- Dropped it
- Check time
- Message friends
- Access assignments
- Flashcards stored on phone
- Record data in lab
- Timer
- It’s time to stand up
- Use weird charger from friend – phone gets hot
- GPS/Maps
- Play music
- Track your location
- Play games
- Stream shows
- Charging station
- Friend shows off their new phone – now you’re jealous
- QR code menu
- Text friends to ask their order
- Pay for food with cc on phone – data privacy alert!!
- Vlog your outing
- Watch videos while out
- Check the bus schedule
- Phone runs out of battery while out
Based on the scenes above, create a list of benefits and drawbacks of li-ion batteries in our mobile devices.
The average lifespan of a phone is between 15 months and 2.5 years.
The lifespan of your smartphone depends on how you handle your device.
Broken Phone Fast Facts
