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Check the prerequisites, follow a worked example and try your own exercise. Compare your answer with the explanation; keep progress on your device or download a workbook.
3 learning paths, 13 original lessons and 26 explained quiz questions. All foundation lessons and solutions are free.
Four stages take a study-planner page from meaningful HTML to a responsive layout, validated calculations and keyboard testing.
4 stages · 150 suggested minutes + project
Three stages teach data representation, functions, edge cases and a reproducible CSV summary using only Python’s standard library.
3 stages · 120 suggested minutes + project
Six original lessons connect ratios, algebra, functions, data and right triangles. Show your working, check units and use mistakes to choose the next practice topic.
6 stages · 205 suggested minutes + project
Exam material is independent instruction with partial topic alignment; it is not endorsed by College Board or ACT. No official test, complete exam syllabus, certification or score prediction is provided.
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