Developmental

Intellectual / Developmental Disability

A slower path to learning — with a destination that still includes independence, work, and a life your child chooses.

If you're here because you're scared, that's okay. You're not alone, and noticing is the first act of advocacy.

Read as much or as little of this page as you have room for today. It will still be here tomorrow.

What this is

Understanding Intellectual / Developmental Disability

Intellectual disability involves significant differences in both intellectual functioning and adaptive behavior — the practical, social, and daily-living skills people use every day. It's identified through testing plus a picture of how your child functions in real life.

The most important thing an IEP can do here is teach skills that transfer: communication, self-care, safety, self-advocacy, and eventually work. Academic content still matters, and so does belonging with peers.

Presume competence, insist on high expectations, and start transition planning early. Adults with intellectual disability work, live independently with support, and have full lives when the planning starts in childhood rather than at graduation.

Could this be it?

Early signs, by age

None of these are a diagnosis, and no child shows all of them. This is a list to help you notice patterns and describe them clearly to someone who can evaluate.

Toddler & preschool

Milestones consistently later across several areas — motor, language, play
Learning new skills takes many more repetitions than expected
Trouble with pretend play and simple problem solving

Early elementary

Academic skills significantly behind peers across subjects
Difficulty generalizing a learned skill to a new setting
Self-care skills (dressing, toileting, organization) behind peers

Older kids & teens

Growing gap in abstract reasoning and academic content
Needs explicit teaching for money, time, safety, and social judgment
Vulnerable to being talked into things; needs self-advocacy instruction

What to do next

In this order, when you're ready

1
Request a full evaluation including adaptive behavior
Eligibility requires adaptive behavior measures, not just an IQ score. Ask that a parent-report adaptive scale be included so your home observations count.
2
Ask about medical and genetic evaluation
A developmental pediatrician or geneticist may identify an underlying cause, which sometimes changes the medical plan and connects you to a specific community.
3
Get on your state's disability services waiting list now
Many states have Medicaid waiver programs with waiting lists measured in years. Applying early costs you nothing and can matter enormously later.
4
Insist on high expectations and inclusion with support
Ask what would need to be true for your child to participate in general education for part of the day, rather than accepting a separate placement as the starting point.
5
Write down what you're seeing
Dates, examples, the exact words your child used, how long homework took. You don't need a diagnosis to keep a record — you just need a notebook. This becomes the backbone of every conversation that follows.
6
If your child is under 3, call early intervention today
IDEA Part C gives every state a free early intervention program for babies and toddlers from birth to age 3. You do not need a doctor's referral and you do not need a diagnosis — a parent can refer their own child. Search "[your state] early intervention Part C" or ask your pediatrician for the number. For ages 3 and up, the same law (IDEA Part B) makes your local public school district responsible, even if your child doesn't attend school there yet.
7
Put your request for an evaluation in writing
Email or hand-deliver a dated letter to the school principal and the special education director asking for a full initial evaluation, and say what you're worried about. Writing it down starts the legal clock. Ask for a copy of your Procedural Safeguards at the same time.
8
Talk with your pediatrician
A medical visit can rule things in or out — hearing, vision, sleep, iron levels, anxiety — and can open the door to outside evaluations and therapies that run alongside anything school provides.
9
Say it out loud to your child, gently
Kids usually already know something is harder for them. Naming it kindly — "your brain works in a particular way and we're figuring out what helps" — turns shame into a plan.

Try this at home

Small things you can do this week

These are everyday activities, not therapy or instruction. Ten warm minutes beats an hour that ends in tears — stop before either of you is done being pleasant.

Ages 5+20 min to set up

Break one task into photos

Handwashing, making a sandwich, packing a bag — photograph each step in order and post it where the task happens. Visual task strips build independence that verbal reminders don't.

Ages 8+15 min

Practice money at the real store

Give a five-dollar bill and one item to buy. Life skills learned in the actual place transfer; the same skill taught at the kitchen table often doesn't.

All agesOngoing

Same words, every time

Pick one phrase for each routine and keep it identical — "shoes on, door open, car." Consistency of language is what makes the routine learnable.

These ideas are general parenting suggestions for families reading about Intellectual / Developmental Disability. They aren't therapy, instruction, or medical advice — follow the plan your child's team has set.

A resource worth knowing about

Special Olympics — more than the games you've seen on TV

Most parents picture the competitions. Two of their year-round programs matter far earlier than that, and both are free to families.

Young Athletes — ages 2 to 7A free play-based program for running, jumping, catching, balance, and taking turns. It's built for children with intellectual disabilities and it deliberately includes typically-developing siblings and peers, so it's often the first group activity where nobody has to be separated out.Unified Sports & Unified Champion Schools — school ageAthletes with and without intellectual disabilities train and compete on the same team. Many districts run it through the school itself, which is why it's worth naming out loud at an IEP meeting — participation can be written into extracurricular, social, or communication goals rather than left to chance.

Find a local program specialolympics.org

Firm Footing is not affiliated with, endorsed by, or partnered with Special Olympics. We recommend them the same way we'd recommend them to a friend — because their programs are real, free, and easy to miss. Availability varies by state and local program.

Looking ahead

When your child reaches their teens

Starting somewhere between 14 and 16, the IEP has to begin planning for life after school: postsecondary goals, independent living skills, vocational training, and connecting with adult services before school ends. Decision-making changes at 18, too.

Read the transition planning guide

Where to read more

Organizations we trust

These are national nonprofits, university centers, and government resources. Firm Footing isn't affiliated with any of them — we just think they're worth your time.

Your IEP meeting

Before, during, and after

An IEP meeting is a working meeting, not a verdict. You are a full member of the team, and you can ask for another meeting any time.

Evaluations to ask for

Name these specifically in your written request — a general request gets a general answer.

Cognitive assessment by a school psychologist
Adaptive behavior assessment with parent and teacher input
Speech-language evaluation, including AAC if needed
Occupational and physical therapy evaluations
Functional Behavior Assessment if behavior affects learning
Transition assessment (interests, work skills, independent living) by age 16

Before the meeting

Ask for a copy of the draft IEP, the evaluation report, and any progress data at least a few days ahead. You are allowed to read before you decide.
Send a short list of your concerns and questions in writing before the meeting so they must be addressed on the record.
Write your own one-page "parent input statement" — who your child is, what's working, what isn't, what you want by the end of the year. Ask that it be attached to the IEP.
Bring someone: a partner, a friend, a note-taker, or an advocate. You are allowed to bring anyone with knowledge or special expertise about your child.
Check your state's rules on recording, and give written notice if you plan to record.

During the meeting

Ask how each goal will be used in real life. If nobody can answer that, it's the wrong goal.
Ask each person to say what data they used. "What is that based on?" is a complete, polite question.
Slow the meeting down when a term goes by that you don't know. "Can you say that in plain language?" is your right, not an interruption.
Test every goal out loud: What exact skill? How will it be measured? What's the target number? Under what conditions? By when?
Check that the services page matches the needs page — every need described in the PLAAFP should have a goal, a service, or an accommodation attached to it.
If you disagree, don't refuse to sign in silence. Ask for your disagreement to be written into the meeting notes, and ask what the school proposes instead.

Services to ask about

Specially designed instruction with explicit, repeated, systematic teaching
Speech, OT, and PT as related services with stated minutes
Functional life skills and community-based instruction
Self-advocacy and self-determination instruction
Transition services, job sampling, and agency linkage before graduation
Extended School Year when regression over breaks is documented

Accommodations to ask about

Modified curriculum with the same subject content at an accessible level
Visual supports, task analysis, and step-by-step checklists
Repetition and practice across settings for generalization
Extra time and reduced volume
Peer supports and inclusive opportunities daily
Assistive technology for communication and academics

After the meeting

Send a same-day follow-up email summarizing what was agreed and what's still open. A friendly written summary becomes the record.
Read the final IEP against your notes when it arrives. If something is missing or different, say so in writing within days, not months.
Calendar the progress reporting dates and ask for the actual data, not just "making progress."
If services aren't being delivered, ask for the service log in writing. Missed minutes can mean compensatory services.
If you disagree with the school's evaluation, you can request an Independent Educational Evaluation (IEE) at public expense — ask in writing.

Still not sure

Bring the document, or bring the question

If you already have an IEP or evaluation in hand, Decode My IEP will read it with you and flag the vague goals. If you just want to ask something out loud, Sprout answers in plain language.

Decode my IEP Ask Sprout a question

Related guides

Firm Footing is an independent resource. Nothing on this page is medical, psychological, or legal advice, and none of the organizations linked here are affiliated with us. Special education rules vary by state and district — your state's Parent Training and Information Center can help you with local specifics for free.