Computing & AI Class 7
Punched Cards & a Lights Puzzle
Read numbers on punched cards, sort cards with a needle, solve a lights puzzle.
7 lessons · ~39 min total
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Lessons in this topic
- 0 Start here A roadmap: numbers, letters, sorting with a needle, a lights puzzle. · 3 min You are here
- 1 Numbers in five holes Each hole is worth twice the hole on its right. · 6 min
- 2 A letter in five holes Five holes make 32 patterns. That is enough for 26 letters. · 6 min
- 3 Sort cards with a needle Sort cards one hole at a time, starting with the 1 hole. · 7 min
- 4 Five lights, one answer Clues drop settings that break them. One setting left is the answer. · 7 min
- 5 The big picture Four ideas: binary places, letters, sorting, a lights puzzle. · 3 min
- 6 Track quiz A cheat sheet for the four ideas, then twelve questions. · 7 min
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