From crayon graffiti on the walls to one-sided food fights, toddlers love to get messy. While putting their hands—and mouths—on everything may seem chaotic to the adult observer, toddlers are simply using their sense of touch (and taste) to explore the world around them. In fact, it’s exactly this type of hands-on experiential learning that lays the foundation for future success in rigorous subjects like science, technology, engineering, and math.
For most toddlers, a structured physics or chemistry experiment that closely follows the scientific method will come much later in their educational journey. Instead, engaging kids ages 18 months to 3.5 years in some of those same steps helps meet them where they are. And incorporating creative play hones their sense of wonder as their bodies grow and their brains develop.
So how can busy parents and caregivers offer enrichment that keeps their little ones interested without a lot of equipment and elaborate setups? We’ll explain how simple, age-appropriate STEAM (science, technology, engineering, art, and math) activities can do just that.
“Asking” Questions, Experimenting, and Observing the Results
The scientific method starts by posing a question about something, then continues by experimenting, observing, and making a hypothesis. While toddlers may not explicitly ask, their actions parallel the same process of inquiry. For example, when a child engaged in a paint-mixing activity chooses two colors at random, they’re asking, “What happens when I add this to that?”
As they observe what happens and continue to explore their palette, kids begin to understand how color and light function, even if they don’t quite have the language for the big concepts yet. And by gently guiding kids through exploring the science of color, parents and caregivers can help them learn the fundamentals of what each shade looks like and what it’s called, honing their little ones’ identification and language skills.
Whether they’re naturals at color matching or choose to take creative license and change what they see in the world around them by drawing blue cats or purple dogs, kids are learning how colors of the spectrum behave, preparing them for more structured learning about color theory, which encompasses physics and chemistry, in the future.1
The Building Blocks of Engineering
Playing with blocks is a time-honored childhood activity, and just about any household object with a flat surface can be turned into a construction material. As little builders sort and stack their blocks, they are using their hands and mouths to explore texture and shapes and how they relate to one another.
Parents and caregivers can help kids explore by asking them to describe what things feel and look like as toddlers experiment with how objects fit together. Can a ball stack on top of a flat block? How about a block with a cutout? What can go under and what can go over?
As kids create towers and bridges and delight in the sounds and mess their structures make when they fall over, they learn what works and what doesn’t. This is another step of the scientific method, where results help form a hypothesis and the experiment is retried with new information. And as kids “hypothesize” and rebuild, they learn through repetition.
The Math of Sorting and Scooping
While many adults may remember learning math as complex systems of abstractions and symbols, the reality is that kids can pick up mathematical concepts almost anywhere, no textbooks or apps required. And by sorting household objects like socks and toys or scooping water or play sand, kids learn about measurements, numbers, and geometry.2
Parents and caregivers can turn almost anything into a math activity to engage little kids’ curiosity without structure or preplanning. Adults can guide kids simply by “narrating” objects, naming what they are, asking kids to describe their shape and nudging them along while they use number words to count them. Kids can learn about patterns and shapes by playing with their caregivers, who can guide them by lining up two blocks of two different colors or shapes in a series and asking kids to choose the one that comes next. Puzzles can help kids practice these skills as well.3
These are just a few activities parents and caregivers can employ to foster kids’ learning at home. Looking for a little more guidance and structure? STEMful can help!
Toddler STEAM at STEMful
STEMful’s toddler program offers a more structured play environment with a program of STEM-themed educational activities specially designed for toddlers. Each September and January, we host our Toddler STEAM class once a week for 8-10 weeks.
In our STEAM classes for toddlers ages 18 months to 3.5 years, we introduce children and their attending caregivers to basic kid-friendly physics, chemistry, and engineering concepts with activities and sensory play that help develop fine and gross motor skills and cognition.
With songs, storytime, demonstrations, and experiments the child and caregiver can explore together, families with toddlers can rely on STEMful for an additional opportunity to engage kids’ curiosity.
Curious about Toddler STEAM? Try a demo class to see what it’s all about, or build a consistent, engaging routine for your little one by enrolling in our full series. Need more flexibility? We also offer convenient drop-in days to fit your busy schedule!
Footnotes:
1. Smithsonian Libraries, “The Science of Color,” accessed July 7, 2026, https://library.si.edu/exhibition/color-in-a-new-light/science.
2. HeadStart, “Supporting Math Skills in Infants and Toddlers,” HeadStart, last updated July 15, 2025, https://headstart.gov/publication/supporting-math-skills-infants-toddlers.
3. HeadStart, “Supporting Math Skills.”