17,000+ skills covering all major subjects from Pre-K to 12th grade.
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Personalized learning paths for every student from Pre-K to 12th grade
Counting objects, shapes, letter names, rhyming words, and more.
Comparing numbers, shapes, letter sounds, plants and animals, communities.
Adding and subtracting, vowel words, light and sound, rules and laws.
Place-value models, contractions, plants and animals, historical figures.
Multiplying and dividing, pronouns, weather and climate, geography.
Fractions and decimals, synonyms, fossils and rock layers, government.
Multiplying fractions, idioms, photosynthesis, molecules, economics.
Ratios and percentages, Greek and Latin roots, genetics, ancient history.
Proportional relationships, phrases and clauses, engineering design, world history.
Linear functions, Pythagorean theorem, active voice, chemical formulas, civics.
Quadratic equations, figures of speech, biomolecules, cell division.
Congruent triangles, geometric constructions, chemical bonding, American Revolution.

From basic counting to advanced calculus

Reading, writing, grammar, and literature

Biology, chemistry, physics, and earth science
History, geography, civics, and culture