
Teach binary, hexadecimal, and decimal number systems with this IB Computer Science A1.2.1 presentation. Students learn place value, convert between bases, follow worked examples, avoid common errors, and practise IB-style exam questions. Includes clear explanations, conversion tables, step-by-step methods, classroom activities, assessment guidance, and teacher notes. Suitable for IB Diploma Computer Science SL and HL, first assessment 2027.
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