Switching Between Private and Public Schools in Potomac? What to Expect From the Math Placement

At Mathnasium of Potomac, we regularly work with students switching between top local private schools, like Bullis or Holy Child, and Montgomery County Public Schools (MCPS). 

We know this transition can bring confusion because even when parents expect a course title to mean the same thing everywhere, different schools sequence and credit concepts differently.

With this in mind, today we’ll break down what to expect when switching between public and private schools in Montgomery County, along with what to ask and do to make sure their math placement fits.

Why Math Placement Can Change When a Child Changes Schools in Potomac

Your student's math placement may change after a school switch because the new school may follow a different course sequence or use different criteria to decide which class fits. As a result, a completed course may not lead to the same next class.

1. MCPS Is Changing Its Math Pathway

The mismatch is harder to predict this year because Montgomery County Public Schools (MCPS) is changing the pathway itself. After over a decade, MCPS is phasing out Compacted Math, which combines Grades 4 through 6 into a two-year sequence. The district is replacing it with cluster grouping:

• 2026–2027: The new model begins in Grade 4.

• 2027–2028: It expands to Grade 5 (along with changes in Grade 3).

For your family, this means a private school may be comparing your child’s MCPS coursework with a pathway that is still changing. “What a compacted-math student should know” may no longer refer to one fixed sequence.

2. Matching Course Titles May Cover Different Material

Two schools may both offer Algebra 1 or Geometry but teach the course differently. One version may:

• include different topics

• cover concepts in a different order

• move at a faster pace

• go into greater depth

Your learner may encounter this mismatch whether they are moving from a private school into MCPS or from MCPS into a private school.

Private School to MCPS: What to Expect

Under MCPS Regulation JEB-RA, the principal has final responsibility for grade and course placement, with input from staff such as a math teacher or department representative.

The school will usually look at several pieces of information rather than relying on the previous course title alone:

• recent math grades

• standardized math scores, such as Measures of Academic Progress (MAP) Math or Maryland Comprehensive Assessment Program (MCAP) Math

• recommendations from your child’s math teacher

Because MCPS is changing how it groups and paces students, the key question is less about which "track" your learner was on and more about which specific skills they've mastered. If some records are missing at enrollment, the school may make a temporary placement and revisit it once the full information is available.

Before you enroll, gather:

• a transcript showing math course titles and grades

• recent report cards

• a syllabus or topic list from the previous math course

• records of any high school math credit already earned, especially if your child completed Algebra 1 before ninth grade

MCPS may use a math diagnostic in some cases, but the process can vary. Ask the receiving school directly whether your child will complete one as part of placement.

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MCPS to Private School: What to Expect

Your child’s new school will set its own math placement and credit policies. Potomac-area independent schools, such as Bullis, Connelly School of the Holy Child, The Heights School, and McLean School, do not follow one shared process, so the requirements can differ from school to school.

Most schools will ask for:

• a transcript showing math course titles and grades

• recent report cards

• a course description or syllabus from your child’s previous math class

The school may also use its own placement test or admissions assessment. It may review an accelerated MCPS course, such as Algebra 1 completed in seventh or eighth grade, differently from another private school nearby.

Before enrollment, ask the receiving school:

• which math records it reviews

• whether your child will take a math placement test

• how it evaluates accelerated or compacted MCPS coursework

• whether previously earned high school math credit will transfer

We believe these questions can give you a clearer picture of your child’s likely placement before the school makes its final decision.

When changing schools, focus on the math skills your child has mastered rather than the track they were previously assigned. 

Questions to Ask Before the School Finalizes Math Placement

Ask questions that reveal how the school will compare your child’s previous course with its own math sequence:

1. Which records will carry the most weight in the placement decision: grades, test scores, teacher recommendations, or course content?

2. Will the school check what topics my student completed or rely mainly on the course title?

3. If a learner completed Algebra 1 or Geometry elsewhere, which units or skills must match the school’s version of that course?

4. Will my child take a math placement test, and will the results affect the initial course assignment?

5. Can the school review the placement after the first few weeks if the work is clearly too repetitive or assumes material my student has not learned?

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How to Help Your Student During a School Transition

You can take a few practical steps around the time of the switch between public and private schools to catch a math placement mismatch early:  

1. Ask for the current syllabus before your learner leaves: Request the course outline or unit list while your child is still enrolled. It is usually much easier to get those materials before the school closes out their records.

2. Keep graded tests and quizzes: Completed assessments show which skills your student has already mastered and where they may still need support.

3. Ask what the first unit assumes: You can contact the new teacher and ask which skills students are expected to know before the course begins. That gives you a short, concrete checklist instead of a vague worry about whether your learner will be behind.

4. Watch the first two or three weeks closely: If the work repeats material your child already knows or relies on a topic they have never studied, bring that information back to the school before the mismatch starts affecting progress.

5. Consider an outside perspective if your child’s placement still feels unclear: You can use a diagnostic assessment to see which skills your child has secured and where they may need support. That gives you a clearer, independent reference point for conversations with either school. 

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Mathnasium’s diagnostic assessment identifies each student’s skills and gaps, offering a clear starting point when changing schools.

How Mathnasium Can Support Your Child’s Math During School Transition

Mathnasium is a math-only learning center dedicated to empowering K–12 students of all skill levels to excel in math. 

We help students build a solid math foundation so that they feel confident through course changes, new schools, and placement decisions.

To do that, we use the Mathnasium Method™, our proprietary teaching approach, to meet students where they are and guide them forward step by step.

Each student begins with a diagnostic assessment that helps us understand their current skill level, knowledge gaps, and how they think and feel about math. During a school transition, it can show which skills are secure and where support should begin to help your child adjust more smoothly. 

Using these insights, we create a personalized learning plan focused on the student’s specific learning needs. That may mean catching up on a skill the new school assumes they already have, keeping pace with a sequence that moved faster than their last school, or getting ahead on material the receiving school will cover next.

Our specially trained tutors follow the plan closely and provide live, face-to-face instruction in a caring and fun group environment, both in-center and online. They use mental, verbal, visual, tactile, and written techniques to connect new material with the student’s existing understanding.

Students also get room to work through problems before tutors step in. Our tutors ask guiding questions, help students explain their reasoning, and encourage them to check whether an answer makes sense. This helps students adjust to new expectations while building problem-solving skills and greater independence.

The impact is clear in the results:

• 94% of parents report an improvement in their child's math skills and understanding

• 93% of parents report their child's improved attitude toward math after attending Mathnasium

• 90% of students saw an improvement in their school grades

With over 1,100 learning centers across North America, there is likely a Mathnasium close to you.

For families in and near Potomac, Maryland, Mathnasium of Potomac is a trusted source of focused math support, helping students adjust to a new school sequence and feel prepared for the placement ahead.

If your child is switching schools and their new math placement does not fully match what they have already learned, a free diagnostic assessment is a great place to start. Using what we learn, we create a personalized learning plan that helps your child master the skills they need next.

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