0.0 important iron scheme

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    0.1 lecture video part 1

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    0.1 homework part 1

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    0.2 lecture video part 2

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    0.3 answers essay questions

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    0.3 homework part 2

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    0.4 answers homework part 1

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    0.5 answers homework part 2

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    0.6 exam on chapter 1

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