Master 5th grade math
A complete, California Standards-aligned 5th grade math curriculum that builds real fluency — from fractions and decimals to geometry and data, lesson by lesson.
"I built every lesson so that a parent, a homeschooler, or a 10-year-old can pick it up on any given day and know exactly what they're doing and why."— Cassi Gardei
What you'll learn
What you'll be able to do
- Understand and apply all five California Common Core Math domains for 5th grade
- Fluently multiply multi-digit whole numbers and divide with up to four-digit dividends
- Add, subtract, multiply, and divide fractions and mixed numbers with confidence
- Read, write, and operate with decimals to the thousandths place
- Classify 2D shapes, calculate volume of 3D figures, and apply measurement conversions
- Interpret and represent data using line plots, tables, and coordinate plane graphs
How it works
A school that adapts to you
This isn't a set of static videos. Every lesson is generated live and tuned to where you actually are.
We learn your level
A quick placement check tailors your starting point so you're never bored or lost.
Lessons adapt as you go
Each lesson is written for your pace and your goal, adjusting as your skills grow.
Your AI coach keeps you moving
Checkpoints, feedback, and gentle nudges turn progress into a real result.
The curriculum
What's inside your school
6 modules · 18 lessons
Multi-Digit Whole Number Operations
Students build deep fluency with multiplication and division of whole numbers, connecting place value understanding to efficient algorithms. This module establishes the computational foundation that supports all later work with fractions, decimals, and measurement.
- 1.1Place Value Patterns & Powers of 10Included
- 1.2Fluent Multi-Digit MultiplicationIncluded
- 1.3Division with Up to Four-Digit DividendsIncluded
Decimals — Understanding, Reading, and Operating
Students extend their place value knowledge through the thousandths, then apply all four operations to decimals. Concrete models (base-ten blocks, grids) anchor understanding before students transition to efficient written methods. Covers CA 5.NBT.A.1–4 and 5.NBT.B.7.
- 2.1Decimal Place Value to the ThousandthsIncluded
- 2.2Adding and Subtracting DecimalsIncluded
- 2.3Multiplying and Dividing DecimalsIncluded
Fractions — Addition, Subtraction, and Interpretation
Students move beyond basic fraction concepts to fluently add and subtract fractions and mixed numbers with unlike denominators, using visual models to build meaning before moving to algorithms. They also interpret fractions as division. Covers CA 5.NF.A.1–2 and 5.NF.B.3.
- 3.1Fractions as Division & Equivalent Fractions ReviewIncluded
- 3.2Adding and Subtracting Fractions with Unlike DenominatorsIncluded
- 3.3Adding and Subtracting Mixed NumbersIncluded
Fractions — Multiplication and Division
Students develop conceptual understanding and procedural fluency for multiplying and dividing fractions and mixed numbers, using area models and number lines before applying algorithms. Covers CA 5.NF.B.4–7.
- 4.1Multiplying Fractions and Whole NumbersIncluded
- 4.2Multiplying Mixed NumbersIncluded
- 4.3Dividing Fractions and Whole NumbersIncluded
Geometry — 2D Shapes, Volume, and Measurement
Students classify two-dimensional figures by their properties, understand volume as a measurable attribute of three-dimensional space, apply the volume formula, and convert measurement units within the same system. Covers CA 5.G.B.3–4, 5.MD.C.3–5, and 5.MD.A.1.
- 5.1Classifying 2D Shapes by PropertiesIncluded
- 5.2Understanding and Measuring VolumeIncluded
- 5.3Measurement Conversions within a SystemIncluded
Data, Graphing, and the Coordinate Plane
Students collect and display data on line plots (including fractional measurements), then move to the coordinate plane — plotting ordered pairs, interpreting graphs, and using coordinates to solve real-world problems. Covers CA 5.MD.B.2 and 5.G.A.1–2.
- 6.1Line Plots with Fractional DataIncluded
- 6.2Introduction to the Coordinate PlaneIncluded
- 6.3Interpreting Graphs and Solving Problems with CoordinatesIncluded
Who it's for
Is this you?
California School Parents
Their child is in a CA public school and needs a reliable at-home supplement that matches exactly what's being taught in class.
Homeschooling Families
They need a complete, standards-aligned math spine for the year so they're not piecing together mismatched resources.
Catch-Up Kids
A 5th grader who fell behind in math and needs a clear, patient re-explanation of every concept from the beginning of the year.
Ahead-of-the-Curve Students
A mathematically confident child whose parents want a rigorous, structured program to deepen mastery beyond the classroom pace.
Tutors & Learning Coaches
Independent tutors who want a fully-sequenced CA-standards curriculum to anchor their sessions rather than building their own plans.
New-to-CA Families
Families who recently moved to California and need to get their child aligned to California's specific standards quickly and confidently.
Questions
Frequently asked
Your teacher
A note from your teacher
Cassi Gardei
I know what it feels like to watch your child come home from school frustrated, homework in hand, with that look that says I have no idea what we're doing in math.
Maybe you've tried to help, but the way they're teaching long division — or fractions, or decimals — just looks different from how you learned it. You Google it. You find a worksheet. It doesn't quite match. And your child is no more confident the next morning than they were the night before.
That's exactly why I built this school. Not as a collection of random exercises, but as a complete curriculum — the kind that a classroom teacher would plan across an entire school year — rebuilt specifically for California's 5th grade standards, and designed so that parents, homeschoolers, and students can all use it without needing a teaching credential to follow along.
Every lesson has a clear goal, a plain-English explanation, and enough practice to actually cement the idea. Nothing is thrown in just to fill space. Nothing critical is left out. The sequence is intentional: each concept prepares the ground for the next, the way good math teaching always works.
If you're homeschooling, this gives you a complete, trustworthy spine so you're not stitching together three different resources and hoping they add up to a real education. If your child is in a California school and struggling — or excelling and bored — this gives them a reliable, standards-matched place to build or extend their skills on their own schedule.
I designed this for the parent who wants to do right by their kid, for the homeschooler who wants a rigorous-but-clear curriculum, and for the student who just wants to finally get it. If that's you, I'd love to be your guide through 5th grade math.
— Cassi Gardei
Start your journey today
Join get instant access — learn at your own pace with an AI coach in your corner.
- 6 modules, 18 lessons
- AI-adaptive lessons tuned to your level
- Quizzes & checkpoints to lock in progress
- Your own AI learning coach
- Learn on any device, at your pace
- Full access for as long as you're subscribed