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Illustrative Math: Grade 6, Unit 3, Lesson 11: Percentages and Double Number Lines
Illustrative Math: Grade 7, Unit 2, Lesson 12: Using Graphs to Compare Relationships
Illustrative Math: Grade 8, Unit 5, Lessons 2 & 3: Introduction to Functions and Equations for Functions
Illustrative Math: Algebra 1, Unit 6, Lesson 8: Equivalent Quadratic Expressions
Changing Seas: The Fate of Carbon
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Korea: The Never-Ending War