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CHAPTER ASSESSMENTS

Test yourself.

Choose a published course below, or select a language, subject and level manually. Each chapter test has ten questions, five choices per question and ten seconds for each answer. Reading stays free; saving results requires student sign-in.

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These are self-assessments. A course-completion certificate is available only after every chapter test is passed with 10/10 and the entire book passes its editorial completion review. The certificate is not an accredited degree.

—completed test attempts · all time

Available courses with tests

Browse by course here, then choose a chapter below. Questions are tied to published teaching and source files.

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Published chapter tests

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Exercises in the public book

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Open an authored lesson or chapter to see its exercises. Reviewed five-choice practice questions show the result after a choice; where a question is still being authored, the prompt and worked answer remain available.