Two lessons’ worth of KS3 data representation: binary place value both ways, binary addition including one that overflows, hexadecimal and why it exists at all, hex colour codes, ASCII, and how to ...

Full lesson - Introduction to representing negative numbers in binary. This lesson recaps binary representation and then introduces negative numbers. To aid understanding of two’s complement, binary ...

We may receive a commission on purchases made from links. If you don't already know how computers work, it may seem like an unapproachable subject. It's the kind of high-level science and math that ...