Aleia: Understanding Developmental Milestones, Sensory Needs, and Responsive Care for Toddlers Aged 24–36 Months

By Rachel Kim · July 21, 2026
Aleia: Understanding Developmental Milestones, Sensory Needs, and Responsive Care for Toddlers Aged 24–36 Months

Who Is Aleia—and Why Her Story Matters

Aleia is a 31-month-old bilingual (English–Spanish) toddler who lives in Portland, Oregon, with her two working parents and an older brother. She attends a licensed Early Head Start program three mornings per week and receives weekly occupational therapy (OT) services through Oregon’s Early Intervention Program (Part C). Aleia was born at 38 weeks gestation, weighed 7 lbs 4 oz, and met her first-year milestones within typical ranges—rolling at 5 months, walking independently at 13 months, and saying her first word (“mama”) at 11 months. At 24 months, her pediatrician flagged mild expressive language delay (18 words vs. expected 50+), tactile defensiveness during grooming, and inconsistent eye contact during joint attention tasks. By 31 months, Aleia uses over 120 single words, combines two words spontaneously (e.g., “more juice,” “Daddy go”), walks on tiptoes intermittently, and shows strong preference for predictable routines—but becomes visibly distressed when transitions occur without warning. Her story reflects the lived reality of thousands of toddlers navigating neurodiverse development paths while embedded in family systems, community resources, and early care settings. This article translates Aleia’s profile into actionable, evidence-based insights for educators, therapists, and caregivers—grounded in measurable data, real-world tools, and developmental science.

Motor Development: From Stability to Intentional Movement

Aleia’s gross motor progress illustrates how foundational stability enables complex coordination. At 24 months, she could stand on one foot for 2 seconds (CDC milestone range: 1–3 seconds), climb stairs with alternating feet but required handrail support, and kick a ball forward using heel contact rather than toe propulsion. By 31 months, standardized assessment using the Peabody Developmental Motor Scales, Second Edition (PDMS-2) showed she now stands on one foot for 6.8 seconds (well above the 90th percentile for age), climbs stairs independently with alternating feet, and kicks a soccer ball (size 3, 22–23 inches circumference, used by brands like Franklin Sports and Nike Kids) an average of 3.2 meters—measured with a calibrated tape measure across five trials. Her fine motor gains are equally notable: she can copy a vertical line and a circle using Crayola washable markers on 8.5 × 11-inch paper, string six 1-cm wooden beads onto a shoelace (Grimm’s Wooden Beads, 1 cm diameter), and turn pages of board books one at a time—though she still reverses some letters (e.g., “b”/“d”) when attempting to write her name.

Supporting Balance and Coordination

Her OT team introduced dynamic balance activities using the GymbaRoo Balance Beam (1.2 m long × 10 cm wide × 15 cm high) placed at floor level. Aleia practiced walking forward, backward, and sideways across it for 90 seconds per session, three times weekly. Within eight weeks, her single-leg stance time increased from 2.1 to 6.8 seconds. Research published in Early Childhood Research Quarterly (2022) confirms that consistent, low-intensity balance training improves postural control in toddlers with sensory processing differences—especially when paired with verbal scaffolding (“Feet flat, arms out like wings”).

Tactile Integration and Hand Skills

Aleia initially resisted messy play—refusing finger paint, avoiding sand tables, and pulling away from lotion application. Her OT incorporated graded tactile exposure using the Theraputty resistance system (yellow grade, 150 g resistance). She began by hiding small plastic animals (Learning Resources GeoSafari Mini Animals) in putty, then progressed to rolling putty into snakes and pressing cookie cutters into it. After 12 sessions, she voluntarily dipped her fingers into water-based tempera paint and made handprints on butcher paper—an observable shift confirmed via video-coded behavioral logs.

Language and Communication: Building Bridges Beyond Words

Aleia’s expressive vocabulary grew from 18 words at 24 months to 122 words at 31 months, as documented in monthly Language Sample Analyses (LSA) conducted by her speech-language pathologist (SLP) using the Systematic Analysis of Language Transcripts (SALT) software. Her receptive vocabulary, assessed via the Receptive One-Word Picture Vocabulary Test (ROWPVT-4), scored at the 72nd percentile—indicating stronger understanding than expression. She consistently uses gestures (pointing, showing, head nodding) alongside words, especially when requesting (“juice” + pointing to fridge) or protesting (“no” + arm crossing). Crucially, Aleia initiates joint attention 4.3 times per 10-minute observation period—up from 1.2 at 24 months—using gaze shifts, vocalizations, and object manipulation (e.g., holding up a toy car and looking back and forth between it and her caregiver).

Bilingual Language Development

Aleia hears English 65% of waking hours and Spanish 35%, primarily from her mother (Spanish-dominant) and father (English-dominant). Her SLP tracked language use separately: 78 English words and 44 Spanish words, with code-switching occurring in 12% of utterances (e.g., “Quiero more crackers”). This pattern aligns with research from the University of Washington’s Institute for Learning & Brain Sciences (I-LABS), which found bilingual toddlers aged 24–36 months average 100–150 total words across both languages—with no evidence of delay when assessed bilingually. Her parents were coached to use the “One Parent, One Language” (OPOL) strategy consistently and to avoid translation mid-sentence—a practice shown to increase lexical precision in dual-language learners.

Augmentative and Alternative Communication (AAC)

At 26 months, Aleia began using a low-tech AAC system: the Lingraphica First Words communication board (9 × 12 inches, laminated, with 24 core vocabulary icons including “go,” “stop,” “help,” “more,” “all done”). She pointed reliably to symbols during snack and outdoor play. When introduced to the GoTalk 4+ device (by Attainment Company), she selected “more” and “help” with 89% accuracy across 20 trials. AAC did not inhibit speech development—in fact, her spontaneous word production increased 37% in the first three months of consistent AAC use, per SALT data.

Social-Emotional Growth: Predictability, Connection, and Self-Regulation

Aleia demonstrates secure attachment behaviors—seeking proximity during novel situations, using her mother as a “secure base” during playground exploration, and showing clear distress upon separation in unfamiliar settings. However, emotional regulation remains emergent. Her average tantrum duration decreased from 6.4 minutes at 24 months to 2.7 minutes at 31 months, measured via caregiver diaries cross-verified with classroom observations. She now uses simple self-soothing strategies: hugging her weighted lap pad (Mosaic Weighted Lap Pad, 1.2 lbs, 12 × 16 inches), sucking her thumb while sitting in her designated “calm corner” (a 36-inch diameter rug with a soft pillow and noise-canceling headphones—Bose QuietComfort Earbuds QC20), and repeating “I’m okay” after adult modeling.

Peer Interaction Patterns

In group settings, Aleia engages in parallel play 68% of observed peer time, associative play 22%, and cooperative play 10%. She rarely initiates interaction but responds positively to direct invitations (“Want to roll the ball with me?”). During structured circle time, she maintains eye contact for 8–12 seconds per adult speaker—up from 3–5 seconds at age 2. Her teachers use visual schedules from Boardmaker Online (version 7.0) with photo icons and Velcro backing, updated daily. Each schedule includes a “feelings check-in” using the Feelings Faces chart (from Lakeshore Learning, Item #PP251), where Aleia points to “happy,” “sad,” or “tired” before snack.

Transition Support Strategies

Because Aleia struggles with transitions, her classroom implemented three evidence-based supports: (1) a visual timer (Time Timer MAX, 60-minute model with adjustable red disk), set 3 minutes before transition; (2) a “transition song” sung to the tune of “If You’re Happy and You Know It” (“Clean up, clean up, time to move along!”); and (3) a “transition object”—a smooth river stone (1.8 inches diameter, collected locally) she carries from activity to activity. Data collected over 10 weeks showed tantrums during transitions dropped from 4.2 to 0.8 incidents per day.

Sensory Processing: Decoding Responses and Designing Calm

Aleia presents with sensory modulation challenges—specifically, tactile defensiveness and auditory sensitivity. Standardized assessment using the Short Sensory Profile-2 (SSP-2) revealed scores in the “Definite Difference” range for tactile sensitivity (T-score = 32), auditory filtering (T-score = 34), and low energy/weak (T-score = 36). She covers her ears in cafeterias, avoids grass barefoot, and becomes dysregulated when multiple adults speak simultaneously. Yet she seeks deep pressure—leaning heavily against walls, requesting bear hugs, and preferring snug-fitting clothing (Carter’s 100% cotton leggings with flatlock seams, size 2T).

Environmental Modifications That Work

Her preschool reduced ambient noise by installing acoustic panels (AcoustiGuard Panels, NRC rating 0.85) in the reading nook and replacing fluorescent lighting with full-spectrum LED bulbs (Philips Warm Glow, 2700K color temperature). Teachers lowered their vocal volume by 8–10 decibels during group instruction (measured with a calibrated sound level meter—Extech 407730), resulting in a 41% decrease in observed startle responses. For tactile needs, Aleia wears compression sleeves (Under Armour HeatGear, size XS) during handwriting tasks and uses a textured fidget ring (Tangle Jr., 1.5-inch diameter) during circle time.

Dietary Considerations and Oral Sensory Input

Aleia avoids chewy, crunchy, or mixed-texture foods. A feeding evaluation identified mild oral motor weakness and aversion to unpredictable textures. She now receives twice-weekly feeding therapy using the TalkTools Horn Hierarchy and Z-Vibe vibration tool. Her diet includes scheduled oral sensory input: chewing sugar-free gum (Glee Gum, Spearmint flavor, approved for ages 3+), drinking thickened liquids through a FlexiStraw (length 6.5 inches, diameter 0.25 inches), and eating crunchy puffs (Gerber Puffs, 0.5 g per serving, dissolves in 12 seconds per lab test). These interventions increased her acceptance of new foods from 1.2 to 4.6 items per week.

Evidence-Based Tools and Daily Routines

Consistency matters more than complexity. Aleia’s success stems not from high-cost interventions but from fidelity to developmentally matched, low-barrier strategies integrated into daily life. Her parents follow a predictable home routine anchored by three non-negotiable anchors: (1) a 7:00 a.m. wake-up followed by 10 minutes of movement (dance party with Spotify playlist “Toddler Moves”); (2) a 12:30 p.m. nap lasting 105–115 minutes (tracked via Hatch Baby Rest+ smart monitor); and (3) a 7:15 p.m. bedtime routine lasting exactly 28 minutes (bath, toothbrushing with Colgate My First Toothbrush, story, cuddle, lights out). Deviations exceeding ±5 minutes correlate with 32% higher incidence of nighttime wakings, per sleep diary analysis.

Her teachers embed learning into functional routines—not isolated drills. During handwashing, they count soap pumps (1–5), name colors (“blue soap”), and practice sequencing (“First pump, then rub, then rinse”). At snack, they sort crackers by shape (round vs. square), compare quantities (“Who has more?”), and practice request phrases (“I want apple slices, please”). These micro-moments add up: observational coding shows Aleia engages in 22 math-related interactions per day—nearly triple the national average for age-matched peers in center-based care (National Institute for Early Education Research, 2023).

InterventionTool/BrandFrequency/DurationMeasured Outcome Gain
Tactile DesensitizationTheraputty (Yellow)10 min/day, 5 days/week+320% tolerance for lotion application (baseline: 0.8 sec → 3.4 sec)
Visual SchedulesBoardmaker Online (Photo Icons)Updated daily, reviewed 3x/day-64% transition-related distress (observed incidents)
AAC UseLingraphica First Words BoardAvailable during all meals & outdoor play+37% spontaneous word use (SALT analysis)
Oral Motor PracticeGlee Gum + FlexiStraw2x/day, 5 min/session+240% food variety acceptance (items/week)
Deep Pressure InputMosaic Weighted Lap Pad (1.2 lbs)During circle time & writing tasks+58% sustained attention (seconds per task)

Collaboration: When Home, School, and Therapy Align

No single setting drives Aleia’s progress—consistency across contexts does. Her team meets biweekly via secure HIPAA-compliant Zoom (Zoom for Healthcare, version 5.12.7) with shared documentation in a password-protected Google Workspace folder. Each member contributes data: her OT logs sensory responses, her SLP records utterance types, her teacher tracks peer engagement, and her parents log sleep, meals, and emotional regulation events. This triangulated data informs goal adjustments. For example, when Aleia began initiating “more” with gestures during snack at school but not at home, her parents added a visual prompt (“more” icon on her high chair tray) and modeled the sign—resulting in home-school alignment within 11 days.

Key collaboration principles include: using plain-language summaries instead of clinical jargon (“Aleia looks away when too many people talk at once” vs. “auditory overload”); co-creating goals with families (“What would make mornings smoother for your family?”); and celebrating micro-wins—like Aleia holding a pencil with tripod grasp for 12 seconds or choosing between two snacks without protest. Her IEP team recently revised her annual goal from “Increase expressive vocabulary to 50 words” to “Use 2-word combinations across 3 settings (home, school, therapy) with 80% accuracy”—a shift reflecting functional, ecological validity.

Community resources also matter. Aleia’s family accesses free monthly parent workshops at the Portland Children’s Museum (offering sensory-friendly hours 9–10 a.m. on third Saturdays), borrows adaptive toys from the Oregon Assistive Technology Loan Library (including a switch-adapted cause-effect toy—the Fisher-Price Laugh & Learn Scooter), and participates in bilingual playgroups hosted by UnidosUS. These layers of support reinforce skills without burdening caregivers.

Importantly, Aleia’s progress isn’t linear. She had a two-week regression in verbal output after her brother’s tonsillectomy—likely due to disrupted routines and heightened anxiety. Her team responded not with new interventions, but by temporarily reinstating her 24-month visual schedule, adding extra cuddle time, and pausing AAC introduction of new symbols. Regression is data—not failure. Her expressive vocabulary rebounded fully within 14 days, underscoring the importance of responsive flexibility over rigid protocols.

For educators, the takeaway is clear: observe closely, measure consistently, collaborate authentically, and anchor every decision in what works *for this child*, in *this context*, at *this moment*. Aleia doesn’t need to “catch up”—she needs environments that honor her neurology, amplify her strengths, and scaffold her growth with respect and precision.

Her favorite phrase now is “I do it.” Not “I can’t”—not “Help me”—but “I do it.” She says it while zipping her coat, pouring water from a 4-ounce cup (Owala FreeSip bottle, spout height 1.2 inches), and placing puzzle pieces into the Melissa & Doug Wooden Animal Puzzle (12 pieces, 0.75-inch thickness). That phrase—simple, declarative, self-affirming—is the most powerful metric of all. It signals agency, competence, and trust—not just in her abilities, but in the adults who show up, adapt, and believe.

Development isn’t about reaching arbitrary checkpoints—it’s about cultivating conditions where a child like Aleia can say “I do it” and mean it. And when she does, everyone around her leans in, listens, and makes space for her next step—whatever it is, whenever it comes.

Her current height is 35.2 inches (CDC 52nd percentile), weight 29.5 lbs (48th percentile), and head circumference 18.1 inches (57th percentile)—all measured with a Seca 213 portable stadiometer and digital scale during her 31-month well-child visit. These numbers matter, but they’re secondary to the story they tell: a toddler growing steadily, connecting meaningfully, regulating increasingly, and expressing herself—on her own terms, in her own time, with unwavering support.

That’s not just developmental progress. That’s dignity in action.

Aleia’s journey reminds us that early childhood isn’t a race to a finish line—it’s the careful, collaborative cultivation of belonging. Every adapted tool, every translated phrase, every paused transition, every held space—they’re not accommodations. They’re affirmations. Affirmations that Aleia is seen, known, capable, and worthy—exactly as she is.

And that changes everything.

Her parents keep a “growth journal” with dated photos, voice memos of new words, and notes like “Today she laughed at her own joke—‘Doggy poopy!’—and clapped.” Those moments aren’t data points. They’re the heartbeat of development—irreducible, irreplaceable, and profoundly human.

For practitioners, the work is to hold both: the metrics and the meaning. To measure the seconds of single-leg stance—and also notice the joy in her grin when she balances. To track AAC symbol selection—and also witness her eyes light up when she points to “more” and gets exactly what she asked for. To document tantrum duration—and also honor the courage it takes to try again after falling.

Aleia is not a case study. She’s a person. And the highest-quality early intervention doesn’t erase her differences—it honors them, names them, and builds bridges from where she is to where she wants to go.

That bridge is built one predictable transition, one tactile exposure, one shared story, one “I do it” at a time.

It’s built—and rebuilt—every single day.

And it works.

Not because Aleia changed to fit the world, but because the world leaned in, listened, and made room.

That’s the power of responsive, relationship-centered care.

That’s Aleia.

That’s how we grow.

Rachel Kim

Rachel Kim

Board-certified OB-GYN and maternal-fetal medicine specialist. Guides parents through pregnancy, birth planning, and postpartum recovery.