For Grades 3-6 Teachers

Multiplication & fractions, actually understood.

Students who can name the unit, draw the model, and explain the math — starting with the two topics where upper-elementary understanding goes to die. Free to start, today.

7 days free
Start My 7-Day Free TrialThen $21/month. Cancel anytime.

Not ready? Try the free Grade 4 demo lesson first →

A 4th grader matching fraction bar cards on her desk
Unit fraction matching — 4th grade, mid-argument about fourths
244%
test score gains*
300+
schools
30+ yrs
of classroom research

*Iowa Elementary, Nampa, Idaho: 16% to 55% math proficiency over four years — read the principal's account →

Sound like your Tuesday?

We know what the upper grades actually feel like — because we've been in the room.

“Timed tests paper over the multiplication gaps — until 24 × 6 exposes them in front of everyone.”— the fluency façade
“Every year, fractions start from zero. Bigger denominator ‘means’ bigger fraction. Again.”— the September re-teach
“I want them to draw the model and defend it — not guess my rule for them.”— the real goal
Kids are not the problem. Teachers are not the problem. The system is the problem — and systems can be fixed.

It all turns on the word “unit”

Three fourths is three units of one fourth — and the day students can say that, draw it, and defend it, fractions stop being a rule pile. Multiplication is the same idea at whole-number scale: 6 × 24 is six units of 24, drawn with an area model they can take apart.

That's why our lessons put the model first and the procedure second — and why students stop rebuilding fractions every September. Watch the free Grade 4 lesson →

From real classrooms, on tape

Teachers who watched understanding arrive — and said so.

“I saw light bulbs turn on and thinking turn on that I had never seen with math.”

ANGELA WILLIAMS · TEACHER

“This is it. This is how to teach math.”

MOLLY YORK · TEACHER

“These kids aren't just saying math words anymore. They can explain them and show models to back it up.” — Rosie Ashcraft · and Ms. Hochstrasser's 4th graders made dramatic gains — the kind you can point to on the assessments and see in how students talk about the math.

Start free — keep it either way

The Grades 3-6 Pack is open right now, no trial needed. Yours to keep whether or not you ever enroll.

Grade 4 Demo Lesson

Equivalence & unit fractions — a full lesson taught, with the interactive practice that goes with it.

Watch it free →

Unit Fraction Match

The game your students play against the board — matching fraction bars, naming the unit.

Play it free →

Fraction Misconceptions

What goes wrong and when — first learning, then operations — with the fixes that work.

Read it free →
Plus: Five Interpretations of a Fraction — Dr. Brendefur's teaching video.
Dr. Jonathan Brendefur laughing with math manipulatives
Dr. Jonathan Brendefur, founder

Thirty years of research.
And he still answers the weekly call himself.

“Fractions are where understanding goes to die in the upper grades — and it is never the kids' fault. Let me show you the unit-first version where it finally clicks.”

Our service promise to teachers

  • Real people answer — portal Q&A and live weekly Zooms with Dr. Brendefur & Dr. Ismail
  • Start yourself today — no contract, no district decision, no purchase order
  • One click to leave — cancel anytime, no forms

Not a program. Actual math learning experts, on your side.

The people behind 30+ years of classroom research don't hand you a binder and disappear. They're in the portal, on the weekly calls, and — when you need it — building a plan for your students with you.

A DMTI math specialist teaching an open number line lesson — students' hands up, everyone in Coach in the room, number line up
Dr. Jackie Ismail leading a teacher workshop PD that respects your time
Dr. Sam Strother teaching fractions at the board Fraction questions? He's got them.
1

We listen first

Your classroom, your students, your constraints. You tell us what Tuesday actually looks like — we start there, not with a script.

2

We build the plan together

Diagnostic → instruction → intervention, mapped to your roster. You'll know exactly what to do tomorrow and why it works.

3

We stay in the room

Weekly live calls with Dr. Brendefur & Dr. Ismail, portal Q&A answered by people who've taught the lesson. When you hit a wall, we're there.

Dr. Jonathan Brendefur
“Fractions are where understanding goes to die — never the kids' fault. Tell us about the lesson that keeps falling flat and we'll build the fix with you. Teacher-led, expert-backed.”

Tell us about one student who's stuck — or one lesson that keeps falling flat — and we'll help you build the plan for it. That's the partnership: teacher-led, expert-backed. We don't push a system downward; we listen, advise, question, and support.

— Dr. Jonathan Brendefur, founder, DMTI

Everything below is included. Here's the honest math.

This is what each part is worth on its own. Inside the Complete Math Success Program, it's all yours — built around you, the teacher.

What you get, and what each part is worth

Every line is included in your membership

Complete K-6 curriculum & unit resourceslesson plans, printables, varied practice — print them and keep them FOREVER$250+
Foundations Masterclassthe full research foundation, taught by Dr. Brendefur$895
MLP Assessments with targeted intervention strategiesfind the gap, teach the gap$1,495
Games & Reportsmathematical play that reinforces the ideas$195
Coaching, live & on demandreal math experts on the weekly calls — coaching runs $100/hr elsewhere$100/hr
The Coaching Natalie series8 full coaching sessions, from flat scores to breakthrough$395
All of it, valued atover $3,000
Yours included: $21/mo or $210/yr

Plus at least an hour of expert time free — and as many questions as you can ask, answered. Start with 7 days free, and everything you download is yours to print and keep — FOREVER.

It's the level of a Masters program in the grades where math gets real — for less than a class pizza party a month.

Fractions get to click. You don't need one more thing on your plate — you need the model that makes them click. One routine this week; the rest builds from there.

Questions teachers ask before they join

Straight answers — the same ones we'd give you on a call.

Does this replace my district's required curriculum?

No — it supplements it. The models, routines, and assessments deepen how your students think about the math you're already required to teach, alongside your adopted curriculum.

Is it aligned to my standards?

The lessons target the concepts your grade-level standards expect — number sense, place value, the operations, fractions — and we'll help you map them onto your district's pacing.

How much prep does this take each week?

Less than you'd think. Lessons come with plans, printables, and practice built in — most teachers start with one routine a week and grow from there.

Do I need special tech or a printer?

Printables print on any printer; the demo lessons and interactive games run in your browser. Nothing to install.

What if I can't make the live calls?

Coaching is live and on demand — sessions live in the portal, so you can catch up whenever it works.

How does billing and canceling work?

Start with 7 days free. Then it's $21/month or $210/year, month to month — cancel anytime in one click, and everything you've downloaded is yours to keep. If it doesn't make your teaching clearer within 30 days of your first charge, we refund you. No forms.

Try it with your students

Teachers don't need another commitment. Start free, watch a student defend a fraction with a model, feel more confident walking into class tomorrow.

Start My 7-Day Free TrialThen $21/month. Cancel anytime.

Month-to-month after your trial · no contract · cancel anytime.

Plus the 30-day money-back guarantee: if it doesn't make your teaching clearer within 30 days of your first charge, email us and we refund you. No forms, no explanation required — and you keep the materials you already downloaded.

P.S. — for the skippers

Here's what you get instantly when you join the Complete Math Success Program (7 days free, then $21/month):

The Grades 3-6 Pack, free on this page: the Grade 4 demo lesson, Unit Fraction Match, fraction misconceptions, and Five Interpretations of a Fraction — yours either way.
Deeper dive whenever you want it: Five Interpretations of a Fraction — Dr. Brendefur on the five meanings that make every fraction topic click.
Full K-6 curriculum map + lesson example videos from real classrooms — exactly how to teach each lesson, not just what to say.
Weekly Office Hours + diagnostics & intervention activities — fix the misconception, not reteach the whole unit.