What Happens During Your First ABA Therapy Session? A Step-by-Step Guide
Most parents walk into the first session not really knowing what they’re about to see. That’s fine. It’s actually pretty common to get all the way through the intake process and still have only a vague idea of what therapy actually looks like day to day.
So let’s just walk through it.
Before Anything Else: The Assessment
The first real milestone isn’t the first therapy session. It’s the assessment, and it happens before direct therapy starts.
A BCBA sits down with your child and with you. They watch how your child plays, communicates, and responds to different situations. They ask you questions, real ones, about what daily life looks like at home, what your child struggles with, what they’re good at, what your family is hoping to get out of therapy. They’ll probably use some formal assessment tools alongside all of that to get a clearer baseline across things like communication, social skills, and daily functioning.
The whole point of this is to actually understand your child before designing a program for them. Sounds obvious, but not every provider takes it as seriously as they should. The assessment is what separates a generic program from one that’s genuinely built around your kid.
At Happy Strides ABA, nothing gets templated. The treatment plan that comes out of the assessment is written for your child specifically.
What the First Therapy Session Actually Looks Like
Okay, assessment done, treatment plan ready. Now the actual sessions begin. Here’s what tends to happen.
The first thing the therapist does is get to know your child. Not metaphorically. They genuinely spend time in that first session figuring out who your child is. What makes them laugh. What they love. What puts them at ease and what doesn’t. Some parents watch this and wonder when the “real” therapy is going to start. This is the real therapy. A child who feels comfortable with their therapist learns at a completely different rate than one who’s anxious or guarded. That relationship is everything.
They work out what actually motivates your child. ABA uses positive reinforcement as its engine. But reinforcement only works if it’s something your child genuinely cares about. For one kid that might be a specific toy. For another it’s a game, or physical movement, or just enthusiastic praise. The therapist figures this out early and it shapes how the whole session runs.
Then goals start getting introduced. Slowly and deliberately. The skills from the treatment plan get broken into small steps and introduced in a way that builds in success from the beginning. The first session isn’t about pushing hard. It’s about laying groundwork.
Data collection starts immediately. Every response, every prompt, every attempt gets recorded. That data goes to the BCBA who reviews it and decides whether the program is working or needs adjusting. This is what keeps therapy from just running on autopilot.
At the end, you hear how it went. A decent provider doesn’t just hand your child back and move on. You get a real update. What the therapist noticed, how your child responded, what to watch for at home.
Your Child Might Not Love It Right Away
Worth saying plainly: some kids take to therapy immediately and some really don’t, at least not at first.
Pushback, resistance, reluctance to engage. These things happen and they don’t mean therapy isn’t working or isn’t right for your child. Starting something new is hard for a lot of kids, especially kids who thrive on routine and predictability. A good therapist expects this and knows how to work through it without forcing things.
Most kids shift pretty noticeably within the first few weeks once the relationship builds and the routine starts feeling familiar. Some take a little longer. Both are okay.
Your Role in All of This
You’re not just a bystander in this process. What you do between sessions has a real effect on how fast your child progresses.
In the early weeks the most useful thing is to watch sessions when you can and ask questions freely. Your provider should be building parent training into the program as things get going, not as an occasional extra but as an actual component of what you’re doing together. The strategies your child’s therapist uses during sessions are things you can use at home too, and when you do, progress tends to move a lot faster.
Starting at Happy Strides ABA
We keep the process clear from the very first conversation. If you’re trying to figure out whether this is the right fit, or you’re ready to get started, just reach out.
Call (720) 702-0272 or email info@happystridesaba.com


100 Fillmore St 5th Floor Denver, CO 80206-4916
info@happystridesaba.com
720-702-0272
720-798-1080 