Montessori Teacher Certification: Training Levels, Cost and How to Choose a Program

Montessori certification is the credential you earn by completing a Montessori teacher education program.

The training organizations issue the credential themselves: AMS awards its credentials to graduates of AMS-affiliated teacher education programs, and AMI training centres award diplomas for their courses.

The credential comes from the training organization, not from a state licensing agency, and it sits separately from whatever your state requires of childcare staff.

Alongside the training organizations sits the accreditor.

MACTE — the Montessori Accreditation Council for Teacher Education — accredits Montessori teacher education programs across levels from Infant & Toddler through Secondary II, plus an Administrator level, and it has been recognized by the U.S. Secretary of Education since 1995.

MACTE's accreditation attaches to the program itself, not to the college, school or department that houses it.

That distinction matters when you compare options: the question to ask about any course is whether that specific program holds accreditation, not whether the institution it sits inside does.

The credential is also level-specific, which is why your first real decision is the age band you want to teach.

For what the job itself involves in a Montessori classroom, see the Montessori teacher career guide.

Montessori teacher education is organized by age level.

You enroll for a specific level, the credential you earn names that level, and the band you train for should match the classroom you want to lead.

AMI training centres offer diploma courses by age level: Assistants to Infancy for ages 0-3, Primary for ages 3-6 and Elementary for ages 6-12, plus a separate Montessori Classroom Assistant course.

Age band	AMI diploma course
0-3	Assistants to Infancy
3-6	Primary
6-12	Elementary

AMS and MACTE publish their own level names.

AMS offers its Associate credential at the Infant & Toddler and Early Childhood levels, and MACTE accredits programs from Infant & Toddler through Secondary II and Administrator.

The organizations label and divide their levels in their own ways — the ages in the table above are AMI's published bands for its diploma courses — so read each organization's level descriptions before you commit.

If you already know your classroom, the decision makes itself: infant and toddler rooms point to the Infant & Toddler or Assistants to Infancy level, classrooms for ages 3-6 — preschool and Children's House — to the 3-6 level, and elementary programs to the 6-12 level.

If you are unsure, read postings for the jobs you would want and train for the level those postings name.

This guide compares three routes to a Montessori credential: an AMI diploma course at an AMI training centre, an AMS credential at an AMS-affiliated teacher education program, and a course at another Montessori teacher education program accredited by MACTE.

They are not interchangeable labels — each organization runs its own training structure — so it pays to understand what each one is before you compare individual programs.

AMI runs diploma courses through training centres worldwide, organized by the age levels above.

AMI/USA describes the AMI diploma as recognized worldwide, and describes the training as covering educational theory, child developmental psychology, classroom observation, practice teaching and material preparation, taught by AMI-certified trainers.

AMS works through affiliated teacher education programs.

Full AMS credentials go to graduates of those programs who hold a bachelor's degree; high-school graduates without a bachelor's can earn an AMS Associate credential at the Infant & Toddler and Early Childhood levels.

Each AMS-affiliated program sets its own schedule and tuition.

MACTE accredits Montessori teacher education programs from Infant & Toddler through Secondary II and Administrator levels, has been recognized by the U.S. Secretary of Education since 1995, and accredits the program rather than the institution that houses it.

Whichever route you lean toward, the check before you pay is the same: confirm that specific program's accreditation status.

How many programs MACTE has accredited was not something our research could confirm — MACTE's directory is a dynamic search rather than a published list with a count.

Use the directory itself to find programs at your level and in your format.

For AMS credentials, plan on a year or two: AMS says earning its credential typically takes 1-2 years, with in-person or blended coursework and a yearlong mentored practicum — and the practicum can be completed at your current Montessori school if you already work in one.

The calendar varies with format.

One published example, Montessori Center of Minnesota's in-person AMI 3-6 Diploma Course, runs on a nine-month format.

Published prices give you the shape of the cost.

Montessori Center of Minnesota lists total tuition of $14,500 for that in-person AMI 3-6 Diploma Course in 2026-27, plus a $75 application fee.

Montessori Northwest, another AMI training centre, lists Primary tuition of $14,500-$14,750 depending on format, a $150 application fee, about $250-$300 for books, $300-$600 for supplies and $99 for AMI membership.

Its Primary trainees also complete at least 90 hours of observation as part of the course.

Those figures are two training centres' published prices — examples of what AMI training can cost, not an average and not a range across all programs.

AMS says each of its affiliated programs sets its own schedule and tuition, and these two AMI courses publish their own price lists.

When you compare programs, price the same line items at each: tuition, application fee, books and supplies, membership, and the time the practicum and observation hours take.

On the AMI side, AMI/USA runs a fund that awards partial scholarships — tuition reductions — toward AMI training in the U.S., and lists Montessori schools that offer to sponsor trainees.

Only in part, if you want an accredited credential.

AMS describes its coursework as in-person or blended, and MACTE has a specific rule for online delivery: a MACTE-accredited program that delivers most of its academic content online — more than 50% — must still require at least 120 residential hours, meaning time in person.

Even a mostly-online program therefore includes at least 120 hours of in-person time.

MACTE's directory filters programs by online share — more than 50% online, or 10-50% online — so if you need a format that fits around a job, that filter is the practical starting point.

Residential hours mean time on site, so confirm the in-person block's schedule and location with the program itself before you enroll.

The training background a school wants — an AMI diploma, an AMS credential, or a MACTE-accredited course — is something you can read from its job postings.

Read several postings for the age level you are targeting before you pay for training: they show which credential the schools you want to work for actually name.

The same logic applies beyond Montessori.

BLS notes that some states and employers require childcare workers to hold a nationally recognized credential, most often the CDA.

A Montessori credential is a different credential from the CDA, issued by a training organization — what a particular school or state wants is its own decision.

For how the role itself works day to day, the Montessori teacher career guide covers the job, and montessori teacher jobs on the board show what schools are asking for right now.

A Montessori credential and a state's childcare staff requirements are two separate systems.

The credential comes from the training organization; the training requirements for childcare staff come from the state child care licensing agency.

Where a state requires a nationally recognized credential, BLS reports that the CDA is the one most often named — a different credential from a Montessori certificate or diploma.

Whether a Montessori credential counts toward a given state's training requirement is that agency's decision.

Because those rules are set state by state, no general answer covers them: confirm the current requirements with your state child care licensing agency before you enroll, or before you count an existing credential toward a state requirement.

This page is career information, not licensing or legal advice. Training and credential rules are set state by state — confirm the current rules with your state child care licensing agency.