PreK Readiness
Counting Play
Touch each object once and hear number words in order.
Grade library
Lesson Library
Pick a grade, then a subject, then a lesson. The journey uses the same library in the right order; this page keeps the whole textbook-shaped map open.
Built from standards-aligned sequences
We use the public domain shape of strong K-6 math programs: coherent grade progression, visual models first, and focused practice outside the core journey.
6 lessons
PreK
Readiness through counting play, comparison, and simple shapes.
3
PreK Readiness
Shapes and More or Fewer
Notice simple shapes and compare small groups.
16 lessons
Kindergarten
Counting, teen numbers, early addition/subtraction, and shape foundations.
Kindergarten A
Numbers to 20
Count forward, find missing numbers, and name teen numbers.
Kindergarten A
One More and Shapes
Use next-number thinking and build with simple shapes.
Kindergarten B
Add and Take Away
Join groups and take some away with counters first.
Kindergarten B
Teens and Ten Frames
See ten and extras before first-grade facts.
67 lessons
Grade 1
Math Mammoth-style 1-A/1-B: addition, subtraction, place value, facts, clock, shapes, measuring, two-digit work, coins, and graphs.
Math Mammoth 1-A
Addition Concept
Join groups, count on, use number lines, and solve first addition stories.
CountingCounting to 10reviewAdditionPut groups togetherteachAdditionAdding within 5teachAdditionAdding within 10teachAdditionPlus 1 factsfact-rackAdditionPlus 2 factsfact-rackAdditionAdd on a number lineteachWord ProblemsFind the questionapplyWord ProblemsFind useful numbersapplyWord ProblemsJoining storiesapplyWord ProblemsMore storiesapply
Math Mammoth 1-A
Subtraction Concept
Take away, compare, count back, and connect subtraction to addition.
SubtractionTake awayteachSubtractionSubtracting within 5teachSubtractionSubtracting within 10teachSubtractionMinus 1 factsfact-rackSubtractionMinus 2 factsfact-rackSubtractionCount backteachSubtractionFind the differenceteachSubtractionUse addition to subtractteachWord ProblemsTake-away storiesapply
Math Mammoth 1-A
Place Value Within 100
Teen numbers, tens and ones, expanded form, compare, order, and ten more or less.
CountingTeen numbersreviewCountingBundles of tenteachPlace ValueOnes and tensteachPlace ValueMake a tenteachPlace ValueTeen numbersteachPlace ValueTens and onesteachPlace ValueExpanded form to 99teachPlace ValueCompare 2-digit numbersteachPlace ValueOrder 2-digit numbersteachPlace Value10 more, 10 lessteach
Math Mammoth 1-B
Addition and Subtraction Facts
Doubles, near doubles, make ten, subtract from ten, missing parts, and mixed fact fluency.
Math Mammoth 1-B
Clock and Calendar
Tell time to the hour and half hour, then use days, weeks, and months.
Math Mammoth 1-B
Shapes and Measuring
Compare and measure length, name shape attributes, compose shapes, and split equal parts.
Math Mammoth 1-B
Two-Digit Operations and Graphs
Add and subtract tens and ones without regrouping, then read simple picture and bar graphs.
Math Mammoth 1-B
Counting Coins
Recognize pennies, nickels, dimes, and quarters, then count simple coin sets.
80 lessons
Grade 2
Math Mammoth-style 2-A/2-B: review, clock, facts to 20, regrouping, geometry, hundreds, measuring, money, graphs, and multiplication.
Math Mammoth 2-A
Review and Fluency Foundations
Review two-digit work, fact families, skip counting, and early problem solving.
Math Mammoth 2-A
Clock
Read quarter hours, five-minute times, digital/analog clocks, AM/PM, and elapsed hours.
Math Mammoth 2-A
Addition and Subtraction Facts to 20
Make ten, use doubles, solve missing addends, and master facts to 20.
AdditionMake tenreviewAdditionAdding within 20teachAdditionThree addendsteachAdditionMissing addendsteachAdditionAddition Labfact-rackSubtractionSubtracting within 20teachSubtractionMissing partsteachSubtractionSubtraction Labfact-rackSubtractionAdd or subtract?applyWord ProblemsMissing part storiesapply
Math Mammoth 2-A
Regrouping in Addition
Use base-ten blocks for carrying, two-digit sums, and three-addend problems.
Math Mammoth 2-A
Geometry
Name plane and solid shapes, count sides and corners, partition shapes, and notice symmetry.
Math Mammoth 2-B
Three-Digit Numbers
Build hundreds, read and write numbers to 1,000, compare, order, and expand.
Math Mammoth 2-B
Measuring
Measure length, estimate, make line plots, compare weight and capacity, and solve measure stories.
Math Mammoth 2-B
Regrouping in Subtraction
Borrow across tens with base-ten blocks, missing parts, and story problems.
Math Mammoth 2-B
Money and Graphs
Count mixed coins, compare amounts, make equal values, and read bar, picture, and tally graphs.
Math Mammoth 2-B
Introduction to Multiplication
Use equal groups, arrays, repeated addition, and skip-counting to start the 2, 5, and 10 facts.
102 lessons
Grade 3
Math Mammoth-style 3-A/3-B: mental math, regrouping, multiplication, tables, time, money, thousands, division, measurement, geometry, and fractions.
Math Mammoth 3-A
Addition and Subtraction
Mental math, difference, missing numbers, patterns, and organized tables.
Math Mammoth 3-A
Regrouping and Rounding
Round to 10 and 100, regroup across hundreds and zeroes, and solve multistep stories.
Place ValueRound to nearest 10teachPlace ValueRound to nearest 100teachAdditionCarryingreviewSubtractionBorrowing across tensreviewSubtractionBorrowing with hundredsteachSubtractionBorrowing across zeroteachAlgebra ReadinessOrder of operationsteachWord ProblemsMulti-step word problemsextensionWord ProblemsEstimate firstextension
Math Mammoth 3-A
Multiplication Concept
Model equal groups, arrays, number-line jumps, times zero/one, and multiplication stories.
Math Mammoth 3-A
Multiplication Tables
Build all core facts through 12 using patterns, arrays, and fact-rack fluency.
MultiplicationTimes 2fact-rackMultiplicationTimes 4teachMultiplicationTimes 10fact-rackMultiplicationTimes 5fact-rackMultiplication×2 through ×5fact-rackMultiplicationTimes 3teachMultiplicationTimes 6teachMultiplicationTimes 9teachMultiplicationTimes 7teachMultiplicationTimes 8teachMultiplication×6 through ×9fact-rackMultiplicationTimes 11fact-rackMultiplicationTimes 12fact-rackMultiplicationMultiplication Tables Labfact-rack
Math Mammoth 3-A
Time
Read minutes before/after the hour, elapsed time, schedules, and time stories.
Math Mammoth 3-A
Money
Count coins and dollars, add and subtract money, make change, and solve shopping stories.
Math Mammoth 3-B
Four-Digit Numbers
Build thousands, add/subtract four-digit numbers, read graphs, and use place-value clues.
Math Mammoth 3-B
Division
Share fairly, form groups, use multiplication/division families, and handle remainders.
DivisionSharing fairlyteachDivisionHow many groups?teachDivisionMultiplication and division familiesteachDivisionDivide by 2fact-rackDivisionDivide by 10fact-rackDivisionDivide by 5fact-rackDivisionDivide by 4fact-rackDivisionDivide by 3fact-rackDivisionDivide by 6fact-rackDivisionDivide by 7fact-rackDivisionDivide by 8fact-rackDivisionDivide by 9fact-rackDivisionRemaindersteachWord ProblemsSharing storiesapply
Math Mammoth 3-B
Measuring
Measure length, weight, capacity, and temperature, then solve practical measurement problems.
Math Mammoth 3-B
Area and Perimeter
Find perimeter, count square units, use arrays for area, and solve shape stories.
Math Mammoth 3-B
Fractions
Use fraction bars, number lines, equivalent fractions, comparisons, mixed numbers, and like denominators.
FractionsEqual partsreviewFractionsHalves & quartersreviewFractionsThirdsteachFractionsQuartersteachFractionsUnit fractionsteachFractionsTop and bottom numbersteachFractionsFractions on a number lineteachFractionsEquivalent fractionsteachFractionsComparing fractionsteachFractionsMixed numbersextensionFractionsAdd like denominatorsextensionFractionsSubtract like denominatorsextension
77 lessons
Grade 4
Math Mammoth-style 4-A/4-B: large numbers, multi-digit multiplication, time and measuring, division, geometry, fractions, and decimals.
Math Mammoth 4-A
Large Numbers
Read, compare, round, and operate with thousands through millions.
Place ValueThousandsreviewPlace ValueHundred thousandsteachPlace ValueMillions and beyondextensionPlace ValueRound large numbersteachPlace ValuePlace value reviewreviewAdditionAddition reviewreviewSubtractionBorrowing with hundredsreviewSubtractionBorrowing across zeroreviewWord ProblemsEstimate firstapply
Math Mammoth 4-A
Multiplication
Review tables, learn factors and multiples, and multiply multi-digit numbers with area models and columns.
Multiplication×6 through ×9reviewMultiplicationTimes 11reviewMultiplicationTimes 12reviewMultiplicationUnknown factorteachAlgebra ReadinessFactors and multiplesteachMultiplicationMultiply by tensteachMultiplicationMultiply by hundredsteachMultiplicationColumn multiplication: 2-digit × 1-digitteachMultiplicationColumn multiplication: 3-digit × 1-digitteachMultiplicationTwo-digit × two-digitteachMultiplicationMultiplication storiesapplyWord ProblemsEqual-group storiesreviewWord ProblemsMulti-step word problemsapply
Math Mammoth 4-A
Time and Measuring
Use elapsed time, schedules, temperature, and customary/metric conversions.
Math Mammoth 4-B
Division
Move from fact families to divisibility, remainders, short division, and long division.
DivisionMultiplication and division familiesreviewDivisionUnknown divisorteachDivisionUnknown totalteachDivisionRemaindersteachDivisionDivisibility rulesteachDivisionDivide tensteachDivisionOne-digit quotientsteachDivisionLong divisionteachDivisionLong division with 2-digit answersteachDivisionCheck divisionteachWord ProblemsGrouping storiesapplyDivisionDivision storiesapply
Math Mammoth 4-B
Geometry
Work with lines, angles, protractors, triangles, quadrilaterals, symmetry, perimeter, and area.
GeometryLines and segmentsteachGeometryAngle basicsteachGeometryRight anglesteachGeometryMeasure angles with a protractorteachGeometryAcute, right, obtuse anglesteachGeometryTriangle typesteachGeometryQuadrilateralsteachGeometrySymmetryreviewGeometryPerimeterreviewGeometryAreareviewGeometryGeometry reviewmixed-review
Math Mammoth 4-B
Fractions
Review equivalent fractions, compare, use mixed numbers, and add/subtract like denominators.
FractionsWhich fraction is bigger?teachFractionsArea modelsteachFractionsFractions on a number linereviewFractionsEquivalent fractionsteachFractionsComparing fractionsteachFractionsCompare same numeratorsteachFractionsWhole numbers as fractionsteachFractionsMixed numbersteachFractionsAdd like denominatorsteachFractionsSubtract like denominatorsteachFractionsFraction × whole numberextensionFractionsFraction storiesapply
Math Mammoth 4-B
Decimals
Connect tenths/hundredths to fractions, compare decimals, and solve money-style decimal problems.
DecimalsTenthsteachDecimalsHundredthsteachDecimalsDecimal place valueteachDecimalsFractions and decimalsteachDecimalsCompare decimalsteachDecimalsAdd decimalsextensionDecimalsSubtract decimalsextensionDecimalsDecimal times whole numberextensionDecimalsDecimal storiesextensionDecimalsDecimal reviewmixed-reviewData & GraphsLine graphsextension
76 lessons
Grade 5
Math Mammoth-style 5-A/5-B: four operations, large numbers, decimals, graphing/statistics, fractions, and geometry.
Math Mammoth 5-A
The Four Operations
Review whole-number operations, order of operations, exponents, estimation, and multi-step problems.
AdditionAddition reviewreviewSubtractionSubtraction reviewreviewMultiplicationTwo-digit × two-digitreviewMultiplicationMultiply mentally with tens & hundredsteachDivisionLong divisionreviewDivisionLong division with 2-digit answersteachDivisionCheck divisionreviewDivisionDivisibility rulesextensionAlgebra ReadinessOrder of operationsteachAlgebra ReadinessExponentsteachAlgebra ReadinessPatternsreviewAlgebra ReadinessFactors and multiplesteachAlgebra ReadinessPrime and composite numbersteachWord ProblemsEstimate firstapplyWord ProblemsMulti-step word problemsapplyWord ProblemsChoose the operationreviewWord ProblemsIgnore extra informationreviewWord ProblemsWord problem reviewreview
Math Mammoth 5-A
Large Numbers and Place Value
Read, write, compare, round, and scale large numbers using powers of ten.
Math Mammoth 5-A
Decimals, Part 1
Understand decimal place value, compare, round, add, and subtract decimals.
Math Mammoth 5-A
Graphing and Statistics
Read line graphs, plot coordinates, find mean, reason from tables, and solve data stories.
Math Mammoth 5-B
Decimals, Part 2
Multiply and divide decimals, connect money contexts, and review all decimal operations.
Math Mammoth 5-B
Fractions, Part 1
Use models and number lines for equivalence, comparison, mixed numbers, and unlike denominators.
FractionsWhich fraction is bigger?reviewFractionsArea modelsreviewFractionsEquivalent fractionsteachFractionsComparing fractionsteachFractionsMixed numbersteachFractionsAdd like denominatorsreviewFractionsSubtract like denominatorsreviewFractionsAdd unlike denominatorsteachFractionsSubtract unlike denominatorsteachFractionsFraction storiesapply
Math Mammoth 5-B
Fractions, Part 2
Multiply fractions, divide with unit fractions, solve fraction equations, and apply fraction operations.
FractionsFraction × whole numberteachFractionsMultiply fraction × fractionteachFractionsMultiply mixed numbersextensionFractionsDivide with unit fractionsteachFractionsDivide fraction by fractionextensionFractionsEquations with fractionsextensionFractionsFraction reviewmixed-reviewWord ProblemsFraction storiesapply
Math Mammoth 5-B
Geometry
Measure and classify angles, classify 2D shapes, use coordinates, and find volume of rectangular prisms.
GeometryMeasure angles with a protractorreviewGeometryAcute, right, obtuse anglesreviewGeometryQuadrilateralsreviewGeometryTriangle typesreviewGeometryQuadrilaterals reviewmixed-reviewGeometryClassify 2D shapes by attributesteachGeometryCoordinate plane (Quadrant I)teachGeometryVolume with unit cubesteachGeometryVolume of a rectangular prismteachGeometryVolume problemsextensionGeometryGeometry reviewmixed-review
88 lessons
Grade 6
Math Mammoth-style 6-A/6-B: operations, expressions, decimals, ratios, percent, number theory, fractions, integers, geometry, and statistics.
Math Mammoth 6-A
Review of Basic Operations
Review whole-number operations, place value, rounding, exponents, and problem solving.
AdditionAddition reviewreviewSubtractionSubtraction reviewreviewMultiplicationTwo-digit × two-digitreviewDivisionLong division with 2-digit answersreviewPlace ValueMillions and beyondreviewPlace ValuePowers of tenreviewPlace ValueRound large numbersreviewAlgebra ReadinessOrder of operationsteachAlgebra ReadinessExponentsteachWord ProblemsMulti-step word problemsapply
Math Mammoth 6-A
Expressions and Equations
Use variables, evaluate expressions, solve one- and two-step equations, and reason with inequalities.
Algebra ReadinessExpressionsteachAlgebra ReadinessVariablesteachAlgebra ReadinessOne-step equations: addteachAlgebra ReadinessOne-step equations: multiplyteachAlgebra ReadinessTwo-step equationsteachAlgebra ReadinessDistributive propertyteachAlgebra ReadinessInequalitiesteachAlgebra ReadinessTwo-variable patternsteachAlgebra ReadinessAlgebra storiesapply
Math Mammoth 6-A
Decimals
Operate fluently with decimal addition, subtraction, multiplication, division, rounding, and real contexts.
Math Mammoth 6-A
Ratios
Use ratios, equivalent ratio tables, rates, unit rates, and bar models for ratio stories.
Math Mammoth 6-A
Percent
Connect percent to fractions and decimals, reason out of 100, calculate discounts, and solve percent stories.
Math Mammoth 6-B
Number Theory
Use factors, multiples, primes, prime factorization, GCF, and LCM to prepare for fraction work.
Math Mammoth 6-B
Fractions
Review fraction models, add/subtract unlike denominators, multiply/divide fractions, and solve equations.
FractionsFraction reviewreviewFractionsEquivalent fractionsreviewFractionsAdd unlike denominatorsteachFractionsSubtract unlike denominatorsteachFractionsMultiply fraction × fractionteachFractionsMultiply mixed numbersteachFractionsDivide with unit fractionsreviewFractionsDivide fraction by fractionteachFractionsEquations with fractionsteachFractionsFraction Labreview
Math Mammoth 6-B
Integers
Work with negative numbers, absolute value, integer operations, and all four coordinate quadrants.
Integers & CoordinatesNegative numbersteachIntegers & CoordinatesInteger number lineteachIntegers & CoordinatesCompare integersteachIntegers & CoordinatesDistance from zeroteachIntegers & CoordinatesAdd integersteachIntegers & CoordinatesSubtract integersteachIntegers & CoordinatesCoordinate planeteachIntegers & CoordinatesFour quadrantsteachIntegers & CoordinatesInteger storiesapplyIntegers & CoordinatesInteger reviewmixed-review
Math Mammoth 6-B
Geometry
Draw and classify figures, find area, use nets, surface area, and volume of prisms.
GeometryQuadrilaterals reviewmixed-reviewGeometryDraw geometric figuresteachGeometryArea of a right triangleteachGeometryArea of a parallelogramteachGeometryArea of any triangleteachGeometryArea of composite polygonsteachGeometryArea & perimeter problemsapplyGeometryNets of prisms & pyramidsteachGeometrySurface area of prismsteachGeometryVolume with fractional edgesteachGeometryVolume problemsapplyGeometryGrade 6 geometry reviewmixed-review
Math Mammoth 6-B
Statistics
Ask statistical questions, display distributions, and describe center and variability.
Specialty exercises live in Practice Lab
These are not the journey. They are focused workouts for facts, tables, clocks, measurement, fractions, and tools.