9th grade Alabama curriculum
What 9th grade students practice in Gradelings, unit by unit, matched to the Alabama Course of Study. Tap any unit to see what it covers and try sample questions.
Math
- Number SetsWhole, rational and irrational
- Rearranging FormulasSolve for any letter
- Lines & IntersectionsGraphs, inequalities and transformations
- Linear RelationsSlope, intercepts and graphs
- Coordinate GeometryDistance, midpoint and slope
- Similarity & ScaleScale factors and similar figures
- Right Triangles & ScalingPythagoras and changing dimensions
- Right-Triangle TrigSine, cosine and tangent
- Circle PropertiesChords, tangents and angles
- Line & Rotation SymmetryFold lines, turns and the order of symmetry.
- Surface Area of ObjectsPrisms, cylinders and joined shapes
- Volume & UnitsPyramids, cones and conversions
- Data & Scatter PlotsQuartiles, box plots and correlation
- Statistics in SocietySamples, bias and misleading graphs
- Two-Way Tables & CausationRelative frequency and correlation
- Function Notationf(x), domain and range
- Solving SystemsElimination and substitution
- Factoring & QuadraticsFactor and solve x² equations
English Language Arts(“Language Arts” in the app)
- Close ReadingInference, theme and author's craft
- Literary ElementsIrony, motif, tone and mood
- Grammar & StylePunctuation, agreement and register
- Word DetectiveRoots, prefixes and meaning in context
- Literary DevicesAllusion, analogy, juxtaposition, flashback
- Digital SmartsTrust, privacy and credible sources
- Forms & FeaturesText patterns, visuals and media
- Summarizing TextsFind the main ideas and put them in your own words.
- Form & ComposingPick the right form for your audience and shape a clear text.
- Research & CredibilityPeer review, AI output and synthesis
- ProofreadingSpelling and word choice in final drafts
- Media AnalysisRhetoric, framing and synthetic media
Science
- Cell Types, Transport & SpecializationProkaryotes and eukaryotes, moving molecules across membranes, and how cells specialize.
- Biomolecules & EnzymesCarbohydrates, lipids, proteins and nucleic acids, and how enzymes speed up reactions.
- DNA, RNA & ProteinsDNA's structure, how genes become proteins, mutations and DNA technology.
- Cells from CellsDNA, mitosis and growth
- Systems in Animals & PlantsHow body systems work together, and how plant systems transport, reproduce and respond.
- Photosynthesis & RespirationHow cells make and use energy
- Carbon & Nitrogen CyclesHow carbon and nitrogen move through living things, air, water and soil, and what happens when the cycles are disrupted.
- Genetic CrossesPunnett squares, dominance, codominance, incomplete dominance and sex-linked traits.
- ReproductionAsexual and sexual reproduction
- Evidence & Mechanisms of EvolutionFossils, biogeography and homologies, rates of change, speciation, drift and gene flow.
- Evolution & SelectionVariation, adaptation and how populations change over time.
- Alabama's BiodiversityAlabama's rivers, delta, forests and coast, and the services their living things give us.
- Populations & StabilityLimiting factors, carrying capacity, succession and how ecosystems recover.
- Ecosystem StabilityRelationships among organisms, succession, and how ecosystems recover from disturbance.
Social Studies
- Age of RevolutionsScience, rights and revolutions to 1900
- The French Revolution & NapoleonEstates, the Terror and Napoleon
- The Industrial RevolutionSteam, factories and new ideas
- Nationalism, 1848–1914New nations and new rivalries
- The Age of ImperialismEmpires in Africa and Asia, and resistance
- World War ICauses, trenches and the peace
- Between the WarsDepression and dictators
- World War IILeaders, turning points and the end
- The HolocaustPersecution and genocide, 1933–1945
- The Cold WarSuperpowers, alliances and the Space Race
- The End of EmpiresIndependence after World War II
- Our Connected WorldGlobalization, conflict and the environment
- Revolution to TodayPut modern world history in order
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