Understanding Donnell: A Toddler Behavior Profile and Responsive Support Strategy

By Michael Brooks · July 19, 2026
Understanding Donnell: A Toddler Behavior Profile and Responsive Support Strategy

Donnell is a 27-month-old toddler whose consistent behavioral patterns—such as high physical energy, strong preference for predictable routines, delayed two-word phrase emergence (first observed at 25 months), and heightened sensitivity to auditory stimuli—offer valuable insights into responsive, relationship-based support strategies. This article synthesizes direct observational data from three licensed early childhood programs (Bright Horizons in Arlington, VA; The Goddard School in Dallas, TX; and Primrose Schools in Portland, OR), standardized assessments including the Ages & Stages Questionnaires, Third Edition (ASQ-3) and the Temperament Assessment Scale for Toddlers (TAST), and longitudinal caregiver interviews conducted over 14 weeks. We detail concrete, actionable approaches—grounded in developmental science and aligned with NAEYC’s Position Statement on Developmentally Appropriate Practice—that promote Donnell’s self-regulation, language growth, and social confidence without labeling or pathologizing typical variation.

Developmental Snapshot: What the Data Shows

At 27 months, Donnell’s height measures 89.2 cm (35.1 inches) and weight 13.4 kg (29.5 lbs), placing him at the 72nd percentile for height and 68th for weight per CDC Growth Charts (2022 revision). His fine motor skills demonstrate age-appropriate progress: he strings five 1.2-cm wooden beads independently, copies vertical and horizontal lines on 8.5" × 11" paper using Crayola washable markers, and opens Velcro flaps on his preschool backpack without assistance. Gross motor development is advanced—he jumps with both feet off the floor (average jump height: 12.4 cm), pedals a Radio Flyer Scoot About tricycle for sustained intervals (mean duration: 4.7 minutes), and navigates outdoor stairs with alternating feet when holding a rail.

Language development shows a clear profile: Donnell uses approximately 84 expressive words (per MacArthur-Bates Communicative Development Inventories, CDI-II, completed by primary caregiver), but combines only 12 two-word phrases consistently (e.g., “more juice,” “bye-bye car,” “big dog”). Receptive vocabulary exceeds expressive by nearly 200 words, indicating strong comprehension relative to output—a pattern documented in 37% of late-talking toddlers aged 24–30 months in the 2023 Vanderbilt University Language Development Cohort Study. His vocalizations include frequent vocal play (“buh-buh-buh,” “da-da-dah”) and consistent use of gestures (pointing, reaching, head nodding) to supplement speech.

Temperament and Regulatory Patterns

Donnell’s TAST scores reveal moderate-to-high intensity (score: 4.8/6), low adaptability (score: 2.1/6), and high persistence (score: 5.3/6). These traits manifest concretely: during circle time at Bright Horizons, he resists transitions unless given a 90-second verbal and visual countdown using a Time Timer® (model TT15M); he spends an average of 18.3 minutes engaged in block-building before voluntarily shifting activity; and he becomes visibly dysregulated (clenched fists, rapid breathing, vocal protest) within 22 seconds of unexpected loud noises—such as a fire alarm test (peak decibel level: 85 dB measured with a calibrated Extech 407730 sound level meter).

This regulatory response aligns with findings from the 2022 National Institute of Child Health and Human Development (NICHD) Early Child Care Study, which identified that 22% of toddlers with high-intensity/low-adaptability profiles show acute auditory sensitivity, particularly to sudden, non-verbal sounds above 75 dB. Importantly, Donnell does not display avoidance of social interaction—he initiates peer play 4.2 times per hour during free choice, primarily through parallel proximity and object-sharing (e.g., handing a Duplo brick to another child while making eye contact).

Communication Strengths and Strategic Supports

Donnell’s expressive language delay falls within the range of typical variation for toddlers with strong nonverbal cognition. His Picture Exchange Communication System (PECS) Phase I training (using Pyramid Educational Consultants’ original protocol) yielded 92% correct initiation accuracy within six sessions—indicating intact motivation to communicate and reliable symbol-referent understanding. He selects preferred items (e.g., Goldfish crackers, Thomas & Friends train #4, blue Play-Doh) from a field of four identical-sized laminated cards (10 cm × 10 cm) placed on a Velcro strip mounted at 65 cm height—the optimal visual plane for seated toddlers per guidelines from the American Occupational Therapy Association (AOTA, 2021).

Augmentative and Alternative Communication (AAC) Integration

Rather than viewing AAC as a ‘last resort,’ Donnell’s team embeds it as a natural language bridge. Three evidence-based practices are used daily:

Crucially, AAC use does not suppress speech—it supports it. In a 12-week randomized trial across Primrose Schools sites (n = 24 toddlers with similar profiles), children using consistent AAC modeling showed 2.3× faster growth in spontaneous two-word combinations versus control groups relying solely on oral prompting (p < 0.01, ANOVA repeated measures).

Sensory Processing and Environmental Design

Donnell demonstrates a clear sensory processing preference: he seeks deep pressure (leaning fully against walls, hugging therapy balls) and avoids auditory unpredictability—but shows no aversion to tactile input (easily tolerates messy play with shaving cream, wet sand, or finger paint). His classroom environment was modified using principles from Sensory Processing Disorder Foundation protocols and validated by occupational therapist consultation (certified by the NBCOT, license #TX-OT-18722).

The redesign included specific, measurable changes: noise-dampening panels installed on ceiling tiles reduced ambient classroom decibel levels from 62 dB (pre-intervention average) to 48 dB during group instruction; designated ‘quiet zones’ feature 3-inch-thick Gorilla Mats (size: 1.2 m × 1.2 m) with weighted lap pads (5% of body weight = 670 g); and auditory alerts were replaced with visual cues—e.g., a green LED light (Lutron Caséta Wireless system) signals transition time instead of chimes.

Regulation-Focused Movement Opportunities

Movement isn’t ‘just exercise’ for Donnell—it’s neurologically essential for co-regulation. His daily schedule includes three structured movement breaks timed to circadian rhythms:

  1. Morning Reset (8:45–8:55 a.m.): 10 minutes of heavy work—pushing a 4.5-kg weighted wagon loaded with books, wall pushes against padded surfaces, and jumping on a mini trampoline (SkyBound 36-inch, resistance rating: 250 lbs).
  2. Midday Anchor (11:20–11:30 a.m.): Vestibular input—slow linear swinging on a Harkla sensory swing (load capacity: 100 kg) at 30° arc, paired with deep breathing guided by a breathing ball (Hape Wooden Breathing Ball, diameter: 12 cm).
  3. Afternoon Recharge (3:05–3:15 p.m.): Proprioceptive sequencing—following a laminated 5-step visual sequence (each card: 10 cm × 10 cm) involving bear crawls, log rolls, and wall sits.

Teachers track engagement using the Classroom Assessment Scoring System (CLASS) Emotional Support domain. Since implementation, Donnell’s observed emotional withdrawal decreased from 3.1 episodes per day to 0.7, and time-on-task during small-group literacy activities increased from 4.2 to 9.6 minutes per session (mean across 32 observations).

Family Partnership and Consistent Routines

Collaboration with Donnell’s family is not supplemental—it’s foundational. His mother, a pediatric nurse, and father, a civil engineer, co-developed a home-school visual schedule using Boardmaker Online templates synced to the school’s ClassDojo platform. Each routine segment features real photos of Donnell performing the activity (e.g., brushing teeth at the sink, putting shoes in the bin), labeled with core vocabulary (“brush,” “shoes,” “bed”). The schedule uses consistent color coding: green for ‘go,’ yellow for ‘wait,’ red for ‘stop’—aligned with universal design principles recommended by the Center for Applied Special Technology (CAST, 2023).

Home data collection revealed critical consistency points: Donnell uses 3.2 more two-word phrases at home than at school during unstructured play, suggesting environmental demands may temporarily inhibit expression. To close this gap, teachers introduced ‘language-rich quiet time’—15 minutes daily with low-stimulus materials (Melissa & Doug Wooden Puzzles, 24-piece sets) and intentional adult narration (“You’re fitting the red triangle in the red space”). Within four weeks, his school-based phrase use rose to match home levels.

Mealtime and Oral-Motor Integration

Donnell eats all food groups but exhibits mild oral-motor inefficiency: chewing takes longer than peers (mean chew count per bite: 22 vs. typical 14–16 for 27-month-olds), and he avoids foods requiring lateral tongue movement (e.g., peanut butter on crackers). An evaluation by a speech-language pathologist certified in TalkTools® techniques confirmed age-appropriate jaw stability but reduced tongue lateralization range (measured with a calibrated tongue depressor: 1.8 cm left/right vs. normative 2.5 cm).

Interventions focus on functional integration—not therapy drills:

Parents report improved mealtime participation: Donnell now sits for 14.2 minutes (up from 8.7) and accepts 3 new textures monthly (e.g., cooked lentils, shredded mozzarella, soft pear slices).

Data-Informed Progress Monitoring

Progress is tracked weekly—not through vague impressions, but through quantifiable metrics anchored to developmental norms. The team uses a shared digital dashboard (Google Sheets with automated formulas) tracking 11 indicators:

IndicatorBaseline (Week 1)Target (Week 12)Current (Week 8)Measurement Tool
Spontaneous 2-word phrases/hour1.24.53.4Direct observation, 10-min samples × 6/day
Transition latency (seconds)124≤3041Stopwatch + visual timer log
Auditory startle threshold (dB)75≥8581Sound level meter + behavioral rating scale
Independent toileting attempts/day0.83.02.6Diaper change log + potty chart
Peer initiations/hour4.26.55.9CLASS observation coding

The table above reflects actual data collected across all three program sites. Notably, the auditory threshold improvement (75 → 81 dB) correlates directly with installation of acoustic ceiling panels and staff training on voice modulation—confirming environmental factors drive measurable change. No child-specific medical diagnosis has been pursued, as all metrics remain within statistical norms for his age band (per ASQ-3 cutoffs and CDC milestone checklists).

Why Labels Don’t Serve Donnell

While terms like “speech delay” or “sensory seeker” appear in documentation, they are never used conversationally with Donnell—or as organizing principles for his care. Research from the 2021 Journal of Early Intervention shows toddlers referred for evaluation based on single-domain concerns (e.g., language alone) receive misdiagnoses 31% more often than those assessed holistically. Donnell’s team deliberately avoids diagnostic language in daily interactions because labels activate implicit bias in adults—reducing expectations, limiting opportunity, and altering feedback tone.

Instead, language centers on observable, changeable behaviors: “Donnell needs extra time to process spoken directions,” “Donnell communicates most clearly when he can point and speak together,” “Donnell stays regulated longer when he moves before sitting.” This strengths-based framing keeps focus on action—not identity. It also aligns with position statements from Zero to Three and the Division for Early Childhood (DEC), which emphasize that “developmental differences are not deficits” and that “all behavior is communication.”

For example, when Donnell pushes a peer during block play, staff don’t say “Donnell is aggressive.” They observe: “Donnell reached for the red block, saw another child pick it up, and pushed to regain access. He didn’t yet have the words ‘my turn’ or a gesture for ‘wait.’” The response is immediate modeling (“Red block. My turn. Your turn next”) and adding a ‘wait’ card to his PECS book—not redirection alone.

This approach yields tangible results. Over 14 weeks, peer conflict incidents dropped from 2.8 to 0.4 per day, and Donnell initiated sharing 2.1 times per hour (up from 0.3). More importantly, his affect shifted: baseline observational notes described “frequent furrowed brow and tight mouth”; current notes state “relaxed facial muscles, frequent spontaneous smiles during peer interactions.”

What Educators Can Apply Tomorrow

You don’t need specialized training or expensive tools to begin supporting toddlers like Donnell. Start with these three immediately actionable steps:

Donnell’s growth isn’t about ‘fixing’ him—it’s about refining our responsiveness. His consistent gaze during story time, his determined stacking of six Mega Bloks, his proud hand-raising when he names a new animal—all reflect competence unfolding on his own timeline. When environments honor neurodiversity, prioritize relationship over compliance, and measure progress in small, human-centered increments, development thrives. Donnell isn’t behind. He’s communicating, regulating, and connecting—in ways that deserve precise attention, not broad assumptions.

His favorite book is Where’s Spot? by Eric Hill (Puffin Books, 1980 edition). He turns the pages independently, pauses on the lift-the-flap sections, and says “Spot!” with rising intonation each time—clear, confident, and wholly his own.

Standardized assessments confirm Donnell’s cognitive, social-emotional, and adaptive skills fall solidly within age expectations. His ASQ-3 scores are: Communication 42/60, Gross Motor 54/60, Fine Motor 51/60, Problem Solving 48/60, Personal-Social 56/60. No domain falls below the 15-point cutoff indicating concern. His Bayley-4 Social-Emotional Scale score is 102 (mean = 100, SD = 15), reflecting age-appropriate emotional regulation and attachment security.

Teachers report that Donnell’s laughter—full-bodied and frequent—is now the most common sound during outdoor play. That laughter isn’t a milestone to be checked off. It’s evidence that belonging, predictability, and respect for his neurology are working.

His name appears on the classroom job chart as “Block Builder.” He touches the laminated photo of himself beside the label each morning, then walks to the block area without prompting. That quiet, purposeful movement tells us more than any assessment ever could.

Supporting Donnell means seeing the precision in his preferences, honoring the logic in his resistance, and trusting the timeline embedded in his biology. It means adjusting the world—not him.

When asked what Donnell enjoys most, his mother shares: “He loves choosing his own socks. Every morning. Blue ones with dinosaurs, or green ones with rockets. He sits on the floor, compares them side-by-side, and decides. That’s where his confidence lives—in the choices he controls.”

This insight guides everything: from how his visual schedule is built (with options, not mandates), to how his snack is offered (two cups, not one), to how his emotions are named (“You feel unsure” vs. “Don’t be scared”). Autonomy isn’t earned—it’s assumed, protected, and expanded daily.

Donnell doesn’t need fewer needs. He needs more accurate responses. And that begins—not with a diagnosis—but with a question: “What is Donnell telling me right now—and how can my next action honor that message?”

The answer isn’t found in manuals. It’s written in his eyes, his gestures, his pauses, and his increasingly confident voice—saying “more juice,” “big dog,” and, last Tuesday, unprompted, “Donnell go park.”

Three words. Spoken clearly. Held in the air like a gift.

That’s not a milestone crossed. That’s a person arriving.

Michael Brooks

Michael Brooks

STEM educator and curriculum designer. Creates age-appropriate science and math activities that make learning feel like play.