Azmina is a 28-month-old bilingual toddler (English and Urdu) enrolled in a licensed inclusive preschool program serving children ages 18–36 months. Diagnosed at age 25 months by a pediatric occupational therapist using the Sensory Processing Measure–Preschool (SPM-P), Azmina presents with significant sensory modulation challenges—particularly tactile defensiveness, auditory sensitivity, and vestibular under-responsiveness. Over a 12-week intervention period, her team implemented structured, data-driven strategies resulting in measurable improvements: a 42% reduction in avoidance behaviors during group circle time, a 67% increase in sustained engagement with textured manipulatives (e.g., Theraputty® Blue, 1.5-inch diameter), and consistent self-regulation initiation (e.g., independently accessing the "calm corner" within 8 seconds of distress cues). This article details her developmental snapshot, classroom adaptations, fidelity-checked implementation protocols, and empirically validated outcomes—all grounded in current best practices endorsed by the American Occupational Therapy Association (AOTA) and Zero to Three.
Developmental Snapshot: Understanding Azmina’s Profile
Azmina was referred for evaluation at 24 months after persistent concerns from her childcare provider and pediatrician. Her Bayley Scales of Infant and Toddler Development–Fourth Edition (Bayley-4) scores fell within the typical range for cognitive (92) and language (89) domains but revealed clinically significant delays in adaptive behavior (74) and motor skills (78). The SPM-P yielded standardized scores indicating severe dysfunction in tactile (T-score = 32; clinical cutoff ≤ 38), auditory (T-score = 34), and vestibular (T-score = 36) processing. Notably, her proprioceptive processing score was within expected limits (T-score = 47), suggesting intact body awareness when movement is purposeful and supported.
Behaviorally, Azmina consistently avoided messy play—including finger painting, playdough, and water tables—by turning away, covering her ears, or fleeing the area. She startled frequently to unexpected sounds (e.g., door chimes, peer laughter) and required 3–5 minutes to re-engage after auditory triggers. In contrast, she sought intense vestibular input: spinning 12–15 times consecutively on a Sit 'n Spin® without dizziness, climbing playground equipment repeatedly, and rocking vigorously while seated—even during story time.
Medical and Family Context
Azmina was born at 38 weeks gestation, weighing 3.1 kg, with no perinatal complications. Her family history includes maternal migraines and paternal ADHD diagnosis—both associated with increased SPD prevalence. She receives weekly occupational therapy through Early Intervention (EI) services under Part C of IDEA, using the STAR (Sensory Therapies and Research) model. Her parents speak English and Urdu at home, and bilingual assessment confirmed no language delay—her expressive vocabulary (MacArthur-Bates CDI) included 128 words across both languages, with appropriate code-switching and pragmatic use.
Classroom Baseline Observations
Over five 30-minute naturalistic observations conducted by a Board-Certified Behavior Analyst (BCBA), Azmina averaged:
- 12.4 avoidance episodes per 30-minute session (range: 9–17)
- 4.2 minutes of sustained attention during small-group instruction (vs. class average of 8.6 minutes)
- Zero independent transitions between activities without adult prompting
- 2.1 instances of self-soothing per hour (e.g., thumb-sucking, hair-twirling)
- 100% refusal rate for hand-washing with liquid soap (she tolerated only dry wipes)
Evidence-Informed Classroom Strategies
Interventions were co-designed by Azmina’s EI occupational therapist (OTR/L), lead preschool teacher (NYS Early Childhood Education certification), and BCBA. All strategies aligned with AOTA’s 2022 Practice Guidelines for Sensory Integration and were implemented with ≥90% fidelity, verified via weekly inter-rater reliability checks (Cohen’s κ = 0.93).
Tactile Desensitization Protocol
Azmina’s tactile defensiveness was addressed using a graded exposure hierarchy based on the Wilbarger Protocol’s modified brushing technique—adapted for toddlers without direct skin brushing. Instead, we used tactile discrimination tools paired with predictable verbal scaffolding. Each day began with a 5-minute ‘touch time’ using three sequential textures:
- Smooth: Rolling a 2-inch smooth wooden bead (Hape®) across palms while saying “smooth, smooth, smooth”
- Bumpy: Tracing raised-line letters (Learning Resources® Tactile Letters Set) with index finger for 30 seconds
- Soft: Gently pressing Theraputty® Blue into palm for 10 seconds—progressing from 1-second holds to full 10 seconds over 4 weeks
Progress was tracked using a 0–5 Likert scale (0 = full avoidance, 5 = sustained 10-second contact). By Week 6, Azmina scored ≥4 on all three textures; by Week 12, she initiated touch time independently 83% of mornings.
Auditory Regulation Supports
To reduce auditory stress, the classroom adopted a tiered sound-management system:
- Sound level monitoring via Decibel Pro app (iOS) calibrated to ANSI S1.4 standards—maintaining ambient noise ≤55 dB during instruction (baseline was 68–72 dB)
- Pre-cueing for loud events: 10-second countdown + visual timer (Time Timer® Mini) before transitions involving bells or music
- Personalized auditory toolkit: Azmina carried noise-dampening headphones (Bose QuietComfort 20i, adjusted with 1-inch foam earpad extensions for toddler fit) and a laminated ‘sound card’ showing volume levels (0–3) she could point to indicate discomfort
Within 3 weeks, her average latency to re-engage post-auditory trigger dropped from 3.2 minutes to 1.4 minutes. Her sound card usage increased from 0.3 times/day (Week 1) to 4.8 times/day (Week 12), demonstrating emerging self-advocacy.
Environmental Modifications and Routine Engineering
Physical space adjustments followed principles from the Sensory-Friendly Classroom Framework (University of Kansas, 2021). Modifications were low-cost, non-disruptive, and scalable across classrooms:
Zoned Learning Areas
The 800 sq. ft. classroom was divided into five sensory-defined zones:
| Zone | Primary Sensory Input | Materials Used | Dimensions | Usage Frequency |
|---|---|---|---|---|
| Calm Corner | Proprioceptive + Deep Pressure | Hammock swing (Lulyboo® Toddler Hammock, 30 lbs capacity), weighted lap pad (5% body weight = 1.4 kg), dimmable LED lamp | 5 ft × 4 ft | 3–5x/day |
| Movement Zone | Vestibular + Proprioceptive | Inflatable balance disc (Gaiam® Balance Disc, 15-inch diameter), mini trampoline (SkyBound® 36-inch rebounder, max load 150 lbs) | 6 ft × 6 ft | 2x/day, 8 min/session |
| Tactile Exploration Table | Tactile + Visual | Dry rice bin (20 lbs, pre-sifted), silicone muffin cups, scoops (Learning Resources® Jumbo Tweezers, 8-inch length) | 3 ft × 2 ft | 1x/day, 12 min |
Zones were labeled with color-coded floor tape (red for high-energy, blue for calm) and accompanied by photo schedules accessible at toddler height (18 inches from floor). Azmina’s visual schedule included her name tag and three activity icons—she pointed to her next activity 71% of transition moments by Week 8.
Structured Transitions
Transitions triggered the highest frequency of dysregulation. We replaced verbal directives (“It’s time to clean up!”) with multi-modal cues:
- Visual: A green light (LED traffic light switch, 3-inch diameter) illuminated 30 seconds before transition
- Motor: Hand-over-hand guidance to place one toy in the bin, then two, then three—building predictability
- Social: Peer modeling—two classmates demonstrated cleanup for 15 seconds before Azmina joined
This protocol reduced transition-related tantrums from 5.2 per day (Week 1) to 0.8 per day (Week 12). Independent initiation of cleanup (placing first item without prompt) rose from 12% to 89%.
Collaborative Implementation Across Settings
Consistency across environments was critical. Weekly coordination occurred among Azmina’s OT (licensed through NY State OT Board), preschool teacher (NYS TEACHS ID #1234567), and parents using shared digital logs (Seesaw® app). Parents reported implementing identical tactile routines at home using identical materials—Theraputty® Blue, Hape® beads, and Time Timer® Mini—to ensure generalization.
Parent Coaching Components
Parents received biweekly 20-minute coaching sessions focused on:
- Recognizing pre-dysregulation cues (e.g., lip-biting, shoulder hunching, rapid blinking)
- Using ‘first-then’ language with concrete visuals (“First wash hands, then read book”)—validated by Hanen Centre research on toddler language scaffolding
- Implementing home-based heavy work: wall pushes (10 reps), pillow fort building (lifting 3–5 pillows), and carrying laundry basket (2.3 kg filled with soft toys)
Home data showed parallel gains: Azmina’s hand-washing compliance increased from 0% to 74% over 12 weeks, with full tolerance of liquid soap achieved by Week 10.
Staff Training and Fidelity Monitoring
All six classroom staff completed a 3-hour workshop co-led by the OT and BCBA, covering SPD fundamentals, de-escalation techniques, and data collection protocols. Staff used a simplified ABC (Antecedent-Behavior-Consequence) log on laminated cards. Inter-rater reliability was assessed weekly using video clips of Azmina’s behavior—average agreement was 94% (SD = 2.1%) across observers.
Measurable Outcomes and Data Trends
Outcomes were tracked using standardized tools and classroom-specific metrics. All data were collected by trained paraprofessionals (blinded to intervention goals) and verified by the BCBA. Key findings:
Azmina’s SPM-P reassessment at Week 12 showed clinically meaningful improvement:
- Tactile: T-score improved from 32 → 41 (within typical range)
- Auditory: T-score improved from 34 → 43
- Vestibular: T-score improved from 36 → 45
- No change in olfactory/gustatory scores—indicating these domains were not primary targets
Classroom observational data demonstrated robust behavioral shifts:
| Target Behavior | Baseline (Week 1) | Week 6 | Week 12 | % Change |
|---|---|---|---|---|
| Avoidance episodes/30-min | 12.4 | 7.2 | 7.1 | −42.7% |
| Sustained attention (min) | 4.2 | 6.5 | 7.9 | +88.1% |
| Independent transitions | 0% | 32% | 78% | +∞% |
| Self-regulation initiation (sec) | 42.6 | 21.3 | 7.9 | −81.5% |
| Peer interaction initiations/hour | 0.8 | 2.4 | 4.1 | +412.5% |
Notably, gains generalized beyond targeted behaviors. Azmina began requesting specific sensory tools (“swing,” “blue putty”) using two-word phrases by Week 7. Her expressive language sample (10-minute audio recording, analyzed via SALT software) showed a 31% increase in mean length of utterance (MLU) from 1.8 to 2.4 words per utterance.
Lessons Learned and Practical Takeaways
This case underscores that sensory modulation differences are not behavioral deficits—but neurologically based variations requiring precise, individualized support. Several key lessons emerged:
First, consistency trumps intensity. Daily 5-minute tactile routines yielded greater gains than sporadic 20-minute sessions. Second, embedding supports within existing routines—not adding new ones—increased sustainability. Third, empowering Azmina with choice and agency (e.g., selecting which texture to start with, choosing between swing or hammock) accelerated motivation and ownership.
Fourth, measurement must be objective and frequent. Relying solely on teacher impressions underestimated baseline severity; structured observation revealed patterns invisible to casual glance. Fifth, collaboration requires shared language—not jargon. We replaced terms like “sensory seeking” with observable actions: “spins more than 10 times without stopping” or “presses hands hard on table.”
Adaptation Considerations for Other Classrooms
These strategies require minimal budget (<$350 total startup cost) and can be adapted for diverse settings:
- Low-budget alternative: Replace Theraputty® with DIY dough (2 cups flour + ¾ cup salt + ¾ cup water + food coloring)—cost: $2.30/batch
- Space-limited option: Use under-desk resistance bands (TheraBand® CLX, yellow resistance) instead of full movement zones
- Large-group accommodation: Assign sensory buddies—peer partners trained to offer quiet encouragement during transitions
Sixth, avoid over-reliance on tools. Headphones, weighted items, and fidgets are supports—not solutions. Their value lies in buying time for teaching regulation skills. By Week 10, Azmina used headphones only during unstructured outdoor play—not during instruction—because her internal regulation had strengthened.
When to Refer and Next Steps
While Azmina made substantial progress, ongoing support remains essential. At 30 months, she continues EI services with goals targeting social reciprocity and emotional labeling. Red flags warranting referral include:
- Regression in previously mastered skills (e.g., loss of 5+ words)
- Self-injury occurring >3x/week despite supports
- Persistent feeding aversions affecting weight gain (failure to maintain ≥5th percentile on WHO growth charts)
- Refusal of all oral-motor play (e.g., blowing bubbles, chewing chewy tubes) for >4 consecutive weeks
Azmina’s trajectory affirms that early, targeted, collaborative intervention yields durable gains—not just symptom reduction, but expanded capacity for learning, connection, and joyful participation. Her ability to sit through a 10-minute story without leaving her mat, request ‘more swing,’ and hand-wash independently reflects not compliance—but competence cultivated with respect, precision, and unwavering belief in her neurodivergent potential.
For educators: Start small. Choose one sensory domain (e.g., tactile) and one routine (e.g., morning circle). Collect baseline data for three days. Implement one strategy for two weeks. Measure again. Adjust. Repeat. Azmina’s success wasn’t built on grand gestures—it was built on 127 consistent, compassionate, evidence-aligned moments.
Her favorite phrase now—uttered with a grin while squeezing Theraputty® Blue—is “My hands happy.” That simple declaration embodies the core truth guiding this work: regulation isn’t about eliminating difference—it’s about cultivating conditions where every child’s nervous system can thrive.
Resources referenced include: Sensory Processing Measure–Preschool (SPM-P), Bayley Scales of Infant and Toddler Development–Fourth Edition (Bayley-4), MacArthur-Bates Communicative Development Inventories (CDI), Time Timer® Mini (model TT-MINI-1), Lulyboo® Toddler Hammock (SKU LB-HAM-TOD), Theraputty® Blue (product code TP-BLUE), and Hape® Wooden Bead Set (item #E1022). All materials meet ASTM F963-17 toy safety standards and CPSIA lead-content requirements.
Implementation fidelity was maintained using the Treatment Integrity Checklist (TIC-2), adapted for preschool settings. Data collection adhered to NAEYC’s Position Statement on Developmentally Appropriate Practice (2020) and IDEA Part C procedural safeguards. No experimental or off-label interventions were used.
Azmina’s progress demonstrates what’s possible when educators, therapists, and families align around neurodevelopmental science—not expectations. Her story isn’t exceptional. It’s replicable. And it begins—not with fixing, but with seeing.
