Common questions, in plain language.

Parents of children roughly 0–5, plus the adults who care for and support them: partners, co-parents, grandparents, and caregivers who want to understand what's developmentally happening underneath behavior. The toddler class is built for parents of children between 12 and 36 months; the infant class is for parents of babies in the first year.

Yes. Every class is fully self-paced and asynchronous, with no live sessions to attend. Lessons are short and designed to be watched in 10–20 minute pieces, during a nap or after bedtime. You can return to anything as often as you like.

Yes. The classes draw on peer-reviewed developmental science across cognitive development, language development, environmental influences on skill development, emotion regulation, and parenting behaviors. Where the research is strong, that's reflected. Where it's mixed or uncertain, that's said honestly, instead of being flattened into false certainty.

The primary audience is parents, but the work is useful to anyone who wants developmental science explained clearly: partners, co-parents, grandparents, caregivers, and professionals who work with families. The tone assumes you're already paying attention and capable of nuance.

The free tools live on the Tools for Parents page. The milestone tracker is live and available now. Behavior, sleep, screen-time, and regulation guides are in development: short, plain-language references organized by topic, not a blog archive. The Articles page is for longer pieces that translate research and patterns from coaching.

Join the waitlist on the toddler class page and you'll get the milestone tracker plus a short note when classes open. We don't run launch-date countdowns or urgency tactics, just one calm email when something is genuinely ready.

No. Growing Minds Science is parent education only. It is not a substitute for medical, psychological, or developmental advice from your child's clinicians. If you have a specific concern about your child, the right next step is a conversation with their pediatrician or a developmental specialist.

Matthew McArthur, a Child Development Specialist and parent coach who has coached over 100 parents in Los Angeles, with two years of coaching and six years of study behind the work. More about Matthew →

Classes are delivered through Thinkific, a dedicated online course platform. Once you enroll, you'll receive an email with your Thinkific login; lessons, course materials, and your progress are all managed there. You don't need to create an account in advance; it's set up as part of enrollment.

Primarily short video lessons, designed to be watched in 10–20 minute pieces. Each lesson is paired with written summaries and practical guides so you can revisit the key ideas without re-watching if you prefer. The format is built around real parenting schedules: nap time, after bedtime, or a quiet 20 minutes whenever you have one.

The toddler class is built around the developmental window from 12 to 36 months: what's happening in your child's brain, body, and emotional life, and why it shows up as the behaviors you see every day. Topics include language development, the emergence of autonomy and identity, emotion regulation (and why co-regulation comes first), tantrums, sleep, limits, and the transition out of toddlerhood. Full curriculum details are on the class details page.

Enrollment details and any refund policy will be clearly stated at the point of purchase when classes open. If you have a question about a specific situation, reply to the waitlist email and it will go directly to Matthew.