Interactive CK-12 Course
A field-guide style course for reading, recalling, and testing the chemistry that moves through air, water, rock, and living systems.
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Each lesson maps to local CK-12 FlexBook sections with a chapter table of contents, section anchors, readable text, and source links.
The SDUSD unit guides organize the lesson order, while the student reading content stays anchored in the CK-12 textbook.
Every lesson ships a flashcard set of its key terms — flip to self-test until recall is quick.
A multiple-choice homework set per lesson, scored instantly with an explanation. Distractors are built from realistic chemistry mistakes.