Unit 06 — Iteration & Accumulation

Prerequisite: Unit 05 — conditional execution

Learning goal: Use repetition with for/range and while; update running totals and counters.

#	Lesson	Focus	Points
1	Repeat an instruction	For loops and ranges	5
2	Add values as you go	Accumulator variable	10
3	Count matches in a range	Counters, modulo, and conditional loops	10
4	Build: Launch Countdown	Loops, conditions, strings and return values	15

Open the interactive lesson lab.

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