ACT
Glossary & Topic Index
Every ACT topic covered on AnvayaPrep, A–Z — 543 topics.
A
Absolute valueAbsolute value equationsAbsolute value inequalitiesAcid base dataACT conflicting viewpoints strategyACT coordinate trapsACT data representation strategyACT integration trapsACT probability trapsACT punctuation trap answersACT Reading evidence strategyACT reading pacingACT reading section strategyACT research summaries strategyACT science elimination strategyACT science pacingACT statistics trapsACT structure trapsACT trigonometry trapsACT writing argument trapsACT writing revision strategyACT writing scoring domainsACT writing time managementActive voiceAdding supporting detailsAddressing multiple perspectivesAdverb clausesAffect versus effectAgreement between viewpointsAgreement with intervening phrasesAlgebraic expressionsAlternate interior anglesAmount versus numberAmplitudeAnalogyAngle basicsAngle of depressionAngle of elevationApostrophes for possessionApostrophes in contractionsApplication questionsAppositive phrasesApproximationArc lengthArea in the coordinate planeArea of a circleArea of polygonsArea of quadrilateralsArea of trianglesArgument depthArithmetic sequencesAssumptions in viewpointsAudience awarenessAuthor attitudeAuthor would agree questionsAuthor's purposeAuthor's purposeAvoiding choppy sentencesAvoiding rambling sentencesAvoiding unsupported claimsAvoiding vague languageAxis labelsAxis of symmetry
B
C
CausationCause and effectCause and effect relationshipsCause and effect structureCentral claim in humanitiesCentral claim in natural scienceCentral claim in social scienceChanging variablesCharacter motivationChemistry dataChoosing a thesisChoosing contradicting evidenceChoosing supporting evidenceChronological structureCircle diameterCircle radiusCircles in coordinate planeCircumferenceClaim developmentClarityClause boundary decisionsCoherenceCoherenceCohesionCollective nounsCollinearityColon after independent clauseColon before explanationColon before listsColon usageCombinationsCombining like termsCombining short sentencesComma splicesComma usageCommas after introductory elementsCommas between adjectivesCommas in a seriesCommas with appositivesCommas with nonessential clausesComparative formsCompare and contrast structureComparing data setsComparing evidenceComparing explanationsComparing passage genresComparing perspectivesComparing viewpointsCompeting hypothesesComplement ruleComplementary anglesComplete sentence recognitionCompleting the squareComplex numbers basicsComplex sentencesCompound inequalitiesCompound sentencesCompound subject agreementConcessionConcisenessConcisionConditional probabilityConfounding variablesCongruent trianglesConnecting evidence to thesisConnecting ideas across passageConstantsControl groupControl variablesCoordinate geometry word problemsCoordinate planeCoordination and subordinationCorrelationCorrelation versus causationCorresponding anglesCosecantCosineCotangentCounterargumentCounting principle
D
Dangling modifiersDash usageDashes for emphasisDashes for interruptionData in reading passagesData interpretationData interpretationData tablesData-based predictionsDecimalsDegrees and radiansDeleting irrelevant sentencesDensity dataDependent clausesDependent eventsDependent variableDetail location strategyDetail trap answersDeveloping a positionDictionDilationsDimensional analysisDirect relationshipsDisagreement between viewpointsDistance formulaDistributive propertyDivisibility rulesDrawing conclusions
E
Earth science dataEcology dataEffective verbsElimination methodElimination strategy for readingEnergy dataEnvironmental science dataEquation of a circleEquilateral trianglesError bars basicsEssay conclusionEssay introductionEssential clausesEstimationEvaluating claimsEvaluating claimsEvaluating functionsEvaluating perspectivesEvidence against viewpointEvidence consistencyEvidence contradictionEvidence for viewpointExpected valueExperimental controlsExperimental designExperimental graphsExperimental groupExperimental resultsExplaining evidenceExplicit informationExponential equationsExponentsExterior angle theoremExtrapolationExtreme wording
F
G
I
Identifying assumptionsIdentifying conclusionsIdentifying perspectivesIdentifying the issueIdentifying variablesIdiomsImplication questionsIndefinite pronoun agreementIndependent clausesIndependent eventsIndependent variableInequality notationInference from detailsInformal styleInscribed anglesIntegersInterceptsInterior angles of polygonsInterpolationInterpreting argumentsInterpreting charts in readingInterpreting equationsInterquartile rangeIntroductory phrasesInverse relationshipsIronyIrrational numbersIrregular verbsIsosceles trianglesIts versus it's
L
Law of cosines basicsLaw of sines basicsLeast common multipleLine equationsLine of best fitLine reference strategyLinear equationsLinear functionsLinear inequalitiesLinear trendsLiteral comprehensionLiteral equationsLiterary narrative passagesLogarithm basicsLogical comparisonsLogical flowLogical orderLogical reasoningLogical sentence flow
M
Main ideaMaintaining focusMaking inferencesMeanMeasurementMedianMetaphorMethod comparisonMidpoint formulaMinimal punctuation principleMisplaced modifiersModeModel comparisonModeling scientific systemsModifier placementMoodMotion dataMulti-step equationsMultiple data seriesMultiplesMutually exclusive events
N
O
P
Paired passage comparisonParabolas in coordinate planeParagraph organizationParagraph placementParagraph unityParallel comparisonsParallel line equationsParallel linesParallel lines and transversalsParallel listsParallel structureParallelogramsParaphrasing detailsParentheses usageParenthetical informationPassage mappingPassage organizationPassage summaryPassive voicePattern recognitionPercent change in dataPercent change in dataPercentsPerimeter in the coordinate planePeriodPermutationsPerpendicular line equationsPerpendicular linesPhysics dataPlanning the essayPlural possessivesPoint of viewPoint-slope formPoints lines and planesPolygonsPolynomial expressionsPrecisionPrecisionPredicting experimental outcomesPredictions from viewpointsPrimary purposePrime numbersProbability basicsProblem and solution structureProcedurePronoun casePronoun clarityPronoun-antecedent agreementProportional reasoningProportionsProse fiction passagesPunctuation and sentence meaningPunctuation with datesPunctuation with namesPunctuation with titlesPurpose of an experimentPythagorean identityPythagorean theorem
Q
R
Radical equationsRangeRatesRational expressionsRational numbersRatiosReading chartsReading dense proseReading for argumentReading for conflictReading for experimentReading for structureReading for viewpointReading graphsReading tablesReal numbersRebuttalReciprocal trig ratiosRectanglesRedundancyReference anglesReflectionsRelative clausesRelevance of informationRelevant examplesReliabilityRemaindersReplicationRevision for clarityRevision for emphasisRhetorical purposeRhetorical questions on ACT EnglishRhombusesRight triangle trigonometryRight trianglesRoots and radicalsRotationsRoundingRun-on sentences
S
Sample sizeScale interpretationScatterplotsScience passage mappingScientific methodScientific notationScientific reasoningScientist viewpointsSecantSector areaSemicolon between independent clausesSemicolon usageSentence combiningSentence emphasisSentence fragmentsSentence interruptionSentence placementSentence separationSentence varietySentence varietySequence of eventsSimilar trianglesSimplifying expressionsSineSingular possessivesSkimming strategySlopeSlope formulaSlope-intercept formSocial science passagesSOHCAHTOASolving for a variableSpecial right trianglesSpecific evidenceSpecific word choiceSquaresSquinting modifiersStandard deviation basicsStandard form of a lineStrengthening a claimStructural shiftsStudent viewpointsStyle consistencySubject and predicate completenessSubject-verb agreementSubordinate clausesSubstitution methodSuperlative formsSupplementary anglesSupporting an argumentSupporting conclusionsSupporting detailsSupporting reasonsSymbolismSyntaxSystems of equationsSystems of inequalitiesSystems on graphs
T
TangentTangents and chordsTemperature dataText structureTheir there they'reTheme in prose fictionTheory comparisonThesis statementTime management in readingToneTone consistencyTopic of a passageTopic sentence selectionTopic sentencesTransformations on coordinate planeTransitionsTransitions in essaysTranslationsTrapezoidsTrends in dataTrial comparisonsTriangle angle sumTriangle inequalityTrigonometric identities basicsTrigonometric word problems