Dyscalculia Evaluation Request Letter: Exactly What to Write to Your School

Why a Written Request Matters

A written request creates a clear record, but it does not by itself start the IDEA evaluation timeline. Under IDEA (34 CFR §300.301), when the school suspects a disability it must promptly seek informed parental consent for an evaluation; an RTI process cannot be used to delay or deny one. The evaluation timeline generally begins when the school receives your consent.

After receiving your request, the school should seek informed parental consent for an evaluation or provide Prior Written Notice explaining a refusal. Response timelines vary by state; IDEA generally requires the evaluation within 60 calendar days after consent, unless state law sets a different timeline. The school's child-find obligation does not depend on receiving a written request.

What Your Letter Must Include

An effective evaluation request letter doesn't need legal language or aggressive tone. It needs five elements:

Your child's identifying information. Full name, date of birth, grade, teacher name, and school. This prevents the letter from sitting in an inbox while someone figures out which student you mean.

A clear statement that you're requesting a comprehensive evaluation for a Specific Learning Disability. Use the language the school system recognizes: "I am requesting a comprehensive evaluation to determine whether my child qualifies for special education services under the Specific Learning Disability category, specifically in the areas of math calculation and math problem solving."

Observable evidence of the math difficulty. Describe specific, concrete behaviors: "She spends 90 minutes on 20 math problems that her teacher says should take 15 minutes." "He still counts on his fingers for single-digit addition in fifth grade." "She cannot read an analog clock or make change from a dollar." These ground your request in documented reality, not opinion.

A request for domain-specific testing. Ask explicitly for separate subscores in math calculation, math problem solving, and math fluency. Add a request for cognitive processing measures including working memory and processing speed. This prevents the evaluator from running a single broad achievement battery and reporting a combined composite that masks domain-specific deficits.

A reference to your rights under IDEA. One sentence is enough: "I understand that under IDEA, the school is required to respond to this request within the state-mandated timeline, and I am requesting Prior Written Notice if the district decides not to evaluate."

What to Avoid

Don't diagnose. Your letter requests an evaluation — it doesn't declare that your child has dyscalculia. Let the assessment data make the case.

Don't list accommodations yet. The evaluation comes first. Jumping to "I want a calculator on all tests" before the evaluation is complete gives the school room to dismiss the request as an accommodation issue rather than an eligibility concern.

Don't accept verbal responses. If the school calls to discuss your letter, listen — then follow up in writing: "Thank you for the conversation on [date]. I want to confirm that my written evaluation request dated [date] is being processed. Please send me the consent-to-evaluate form or Prior Written Notice in writing."

Don't wait for the RTI process to finish. If the school says they want to try more intervention first, cite OSEP Memo 11-07 in your response: the RTI process cannot delay or deny a parent-requested evaluation. The two tracks run in parallel.

Where to Send It

Address your letter to the building principal and the special education coordinator (or director of special education for your district). Send it by email with a read receipt, or hand-deliver a printed copy and ask the office to date-stamp your copy. The goal is a documented date of receipt.

Keep copies of everything: your original letter, any responses, and all follow-up correspondence. If the school misses an applicable state response or evaluation deadline, these records help document and follow up on the delay.

After You Send the Letter

The school will do one of three things:

1. Send a consent form. Sign it and return it promptly — the evaluation timeline starts when they receive your signed consent.
2. Send Prior Written Notice refusing to evaluate. This document must explain their reasoning. You can challenge it by requesting an IEP team meeting, contacting your state's Parent Training and Information Center, or filing a state complaint.
3. Nothing. If the district does not respond within the applicable state timeline, send a follow-up letter referencing the original date and asking for a written response. Copy the district special education director.

The Dyscalculia Support Kit includes ready-to-customize evaluation request letter templates, follow-up letter templates for non-responsive schools, and a complete checklist of what the evaluation should cover — so you don't have to build your advocacy from scratch. Get the templates.