Introduce the concept of a number system base/radix, and define Decimal, Binary, Octal, and Hexadecimal.
Explain positional systems and the definition of radix.
You count in tens because you have 10 fingers. But what if you only had 2? Or 16? Welcome to the positional number system, where the value of every mathematical symbol depends completely on its position within a number.
Checkpoint explaining why we need Octal and Hex.
Explain the applications of Hexadecimal (Memory & RGB colors).
Why do we bother adding letters to math? Because hexadecimal makes massive strings of computer binary readable for humans. Here is how it is actively used in modern technology.
Image showing color swatches with their Hex codes.

Hexadecimal allows 24-bit RGB colors to be written compactly, such as (FF, FF, 00) for Yellow.
Flashcards for Radix, Hexadecimal, Binary, RGB.
Matching game for number systems.
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