1st level: STEM — The digital world
Does a computer know who I am?
Nina and her experimenters investigate how computers are able to recognise people.
They try searching for a toy cat called Lucky in a toybox, in the same way a computer would, and they visit a library to find out what the library computer knows about them.
The experimenters discover that computers only know information that they’ve already been told about each person. They can remember a lot of people, and can work very fast, but computers can't think for themselves and sometimes they can make mistakes.
Can computers talk to each other?
Nina and her experimenters explore how signals travel between computers.
They explore how messages can be sent from one computer to another across the internet, and find out how the message knows exactly where to go to.
Why are robots clever?
Nina and her experimenters investigate how robots work, with help from Belle the neuron.
They discover that robots are computers, and although they seem to know what they’re doing, they can’t think for themselves. They need instructions to follow, and these instructions are given to them by humans. The instructions can be changed if we need the robot to do something different.
The people who write instructions for robots are called computer programmers or 'coders'.
How do computers work?
Nina and her experimenters investigate computers with the help of Belle, the Hearing Neuron.
They discover that computers are tools that can do all sorts of things for us. They work when they're given a sign called an ‘input’, and they follow instructions they've been given by humans.
The experimenters also learn about machines like microwave ovens and automatic doors that have computer technology inside them.