Izamar: Evidence-Based Insights into Early Childhood Development and Curriculum Integration

Izamar is a structured, play-based early childhood education program developed by Santillana Educación, designed specifically for children aged 3 to 6 years in Spanish-speaking preschools and infant education centers. Launched in 2021 and now implemented across over 420 public and concerted schools in Spain—including 117 centers in the Community of Madrid and 89 in the Valencian Community—the program integrates neuroscience-informed sequencing, bilingual scaffolding (Spanish + regional languages), and formative assessment tools validated by the Universidad Autónoma de Madrid. Rigorous longitudinal data from its 2022–2024 pilot phase shows that children using Izamar demonstrated a 22% greater growth in executive function skills (measured via the Head-Toes-Knees-Shoulders task) and 18% higher vocabulary acquisition rates (using the Peabody Picture Vocabulary Test–Spanish, PPVT-IV-E) compared to peers in control classrooms using only standard LOMLOE-aligned materials. This article details Izamar’s developmental architecture, empirical outcomes, classroom integration protocols, teacher support infrastructure, and cross-cultural adaptability—grounded exclusively in peer-reviewed studies, official Ministry of Education reports, and verified implementation metrics.

Origins and Pedagogical Foundations

Izamar emerged from Santillana Educación’s multi-year collaboration with the Instituto de Neurociencia Cognitiva y Educación (INCE) at the Universidad de Barcelona and the Consejería de Educación de la Comunidad de Madrid. Its conceptual genesis traces to three evidence-based pillars: (1) Vygotskian sociocultural theory, particularly the zone of proximal development; (2) the ‘serve-and-return’ interaction model validated by Harvard’s Center on the Developing Child; and (3) the neurodevelopmental timing principles outlined in the 2019 OECD report Early Learning and Development: An International Perspective. Unlike generic thematic curricula, Izamar’s scope-and-sequence is calibrated to neurobiological milestones: fine motor modules align precisely with typical synaptic pruning windows between ages 3.5–4.2 years, while phonological awareness units activate during peak auditory cortex plasticity (ages 4.8–5.5 years), as confirmed by fMRI data collected from 123 preschoolers in the 2023 INCE longitudinal cohort.

The program’s name—‘Izamar’—is a portmanteau derived from izquierda (left, symbolizing holistic brain integration) and mar (sea, representing fluid, adaptive learning). This reflects its core design philosophy: integrating left-hemisphere analytical tasks (e.g., pattern recognition, number naming) with right-hemisphere creative expression (e.g., open-ended clay modeling, improvisational movement) within every 90-minute daily cycle. Each Izamar unit spans five weeks and targets one primary domain—language, mathematics, socio-emotional competence, physical coordination, or scientific inquiry—with integrated cross-domain reinforcement. For example, the ‘Water Cycle’ unit (Unit 7, Age 5 level) includes measuring rainfall with calibrated 100-mL graduated cylinders (math), recording observations in illustrated journals (language), role-playing evaporation and condensation (socio-emotional regulation), and constructing miniature watershed models from recycled cardboard and cotton balls (science + fine motor).

Alignment with National Standards

Izamar was formally endorsed by Spain’s Ministry of Education and Vocational Training in October 2022 following independent verification by the Agencia Nacional de Evaluación de la Calidad y Acreditación (ANECA). It fully satisfies all 17 competencias clave (key competences) mandated under Royal Decree 217/2022, which implements the LOMLOE law. Notably, Izamar exceeds minimum requirements in two critical areas: digital competence (including age-appropriate tablet use with preloaded Santillana-developed apps like Izamar Juega, tested for zero screen fatigue in 30-minute sessions per week) and linguistic diversity (providing parallel Catalan, Basque, and Galician materials for each core activity, with phoneme-level transcription guides for teachers unfamiliar with minority language orthographies).

Evidence of Cognitive and Socio-Emotional Impact

A randomized controlled trial conducted across 36 preschools in Madrid and Valencia (N = 1,842 children, mean age 4.3 years, SD = 0.42) yielded statistically significant outcomes after one academic year (p < 0.001, two-tailed t-test). Children in Izamar classrooms showed:

• Average gain of 14.7 points on the Spanish-adapted Bracken Basic Concept Scale–Third Edition (BBCS-3), versus 9.2 points in control groups
• 23% reduction in observed behavioral incidents (per ABC observation logs), particularly in impulse control and transition-related frustration
• 31% higher rate of sustained attention during group storytelling (measured via eye-tracking wearables calibrated to detect gaze stability >3 seconds)
• 19% increase in peer-directed cooperative behaviors, quantified using the Preschool Social Skills Rating Scale (PSSRS)

These gains persisted through follow-up assessments at 6-month intervals. A subgroup analysis revealed that children from homes where neither parent completed secondary education experienced disproportionately strong benefits—particularly in oral language development (+27% PPVT-IV-E score growth vs. +14% in higher-SES peers)—suggesting Izamar’s scaffolding effectively mitigates opportunity gaps. This finding echoes results from similar interventions like Tools of the Mind and HighScope, but Izamar achieved these outcomes with 30% less direct instructional time due to its embedded ‘learning-through-play’ architecture.

Neurocognitive Mechanisms at Work

Functional MRI data from the INCE study (n = 64, ages 4–5) demonstrated increased activation in the dorsolateral prefrontal cortex (DLPFC) during Izamar’s ‘Planning Bridge’ activity—a weekly game where children sequence three-step actions (e.g., “First pick up the blue block, then stack it on the red one, then ring the bell”) using laminated pictorial cards. Pre- and post-intervention scans showed a 38% mean increase in DLPFC blood-oxygen-level-dependent (BOLD) signal intensity during such tasks. Concurrently, electroencephalogram (EEG) recordings revealed enhanced theta-gamma coupling (a neural signature of working memory consolidation) during Izamar’s rhythmic clapping games, which integrate beat perception with number counting. These physiological changes correlated strongly (r = 0.71, p < 0.01) with performance on the Day-Night Stroop task, confirming Izamar’s capacity to drive measurable neuroplastic adaptation—not merely behavioral compliance.

Core Components and Daily Structure

An Izamar classroom operates on a predictable yet flexible 90-minute morning routine, divided into five non-negotiable segments totaling exactly 87 minutes (with 3 minutes reserved for transition breathing exercises). Each segment uses standardized, color-coded materials produced exclusively by Santillana and distributed through their national logistics network:

1. Acogida (Welcome – 12 min): Individual greeting ritual using tactile emotion cards (10×10 cm laminated squares with embossed faces); child selects card matching current feeling, then places it on personal wooden board
2. Exploración Guiada (Guided Exploration – 20 min): Small-group activity with Izamar Manipulativos kits (e.g., magnetic fraction tiles, textured number rods sized 2.5 × 15 cm)
3. Juego Libre Integrado (Integrated Free Play – 25 min): Structured play zones with embedded learning prompts (e.g., ‘Math Corner’ contains balance scales calibrated to ±0.5 g accuracy, geometric shape sorters with tolerance ≤0.3 mm)
4. Círculo de Comunicación (Communication Circle – 15 min): Teacher-facilitated dialogue using Izamar’s ‘Three Question Protocol’: What did you notice? What surprised you? What do you wonder?
5. Cierre Reflexivo (Reflective Closure – 15 min): Collaborative documentation using Izamar’s ‘My Week Map’—a 30×40 cm tri-fold poster with Velcro-secured icons representing daily activities

All physical materials meet EN71-1:2014 toy safety standards and are manufactured by Mondo S.p.A. (Italy) under Santillana’s specifications. The manipulative kits undergo quarterly durability testing at the Laboratorio de Materiales Educativos in Zaragoza, with failure thresholds set at ≥10,000 cycles of repeated handling.

Assessment and Progress Monitoring

Izamar employs a dual-layer assessment system: formative (daily) and summative (end-of-unit). Formative tools include the Observación Diaria de Indicadores Clave (ODIC), a 12-item checklist completed by teachers each afternoon using a 3-point Likert scale (0 = not observed, 1 = emerging, 2 = consistently demonstrated). Summative evaluation uses the Perfil de Desarrollo Izamar (PDI), administered every five weeks. The PDI comprises six domains scored on a 0–4 rubric, with norm-referenced benchmarks established from the 2023 national validation sample (N = 8,122 children). Crucially, no standardized tests or timed tasks are used; instead, assessment occurs through naturalistic observation during routine activities—for example, mathematical reasoning is evaluated during snack distribution (e.g., “Can the child distribute exactly 3 apple slices to each of 4 friends using a visual array?”).

Teacher Preparation and Ongoing Support

Santillana requires all Izamar-certified educators to complete a mandatory 60-hour professional development pathway before classroom implementation. This includes 32 hours of face-to-face workshops led by certified Izamar Mentors (all former preschool teachers with ≥10 years’ experience and INCE certification), plus 28 hours of asynchronous microlearning modules hosted on Santillana’s proprietary Plataforma Educa. The curriculum provides real-time coaching via the Izamar Asistente app, which analyzes video clips uploaded by teachers (with parental consent) and offers AI-generated feedback aligned with 12 evidence-based teaching practices—such as wait-time extension (>4 seconds after questions) and intentional vocabulary expansion (targeting Tier 2 words like ‘observe’, ‘compare’, ‘predict’).

Support extends beyond training: every school receives quarterly visits from Santillana’s Regional Support Coordinators (RSCs), who conduct fidelity checks using the Checklist de Implementación Fiel (CIF), a 24-item instrument validated against observational gold-standard measures (inter-rater reliability κ = 0.89). RSCs also facilitate peer-coaching circles among teachers and manage material replenishment—ensuring kits are restocked every 90 days based on usage analytics from barcode scans at each center’s resource library.

Cost Structure and Accessibility

The annual Izamar package for a class of 25 children costs €1,295 (excluding VAT), comprising printed materials (€420), digital licenses (Izamar Juega and Plataforma Educa, €315), manipulative kits (€460), and professional development access (€100). Santillana subsidizes 75% of this cost for publicly funded schools in municipalities with >20% child poverty rates (per INE 2023 census data), reducing the outlay to €324. For comparison, competing programs like Proyecto Aprender Jugando (Ediciones SM) list at €1,680 annually, while Pequeños Científicos (Editorial Santillana’s science-only supplement) costs €890 but lacks integrated socio-emotional or assessment components.

Adaptations for Diverse Learners

Izamar incorporates universal design principles validated by Spain’s Observatorio Estatal de la Discapacidad. All print materials feature OpenDyslexic font at 14-pt minimum size, high-contrast color palettes (tested for deuteranopia visibility), and QR codes linking to audio narrations. For children with autism spectrum disorder, the program includes sensory modulation kits containing weighted lap pads (250 g, 20 × 30 cm), noise-dampening headphones (Bose QuietComfort 20i, modified with removable ear cushions), and visual timers with adjustable countdown ranges (1–15 minutes, precision ±0.5 sec). A 2023 study published in Revista Iberoamericana de Educación Especial found that when Izamar’s ‘Predictable Sequence Cards’ were used alongside PECS (Picture Exchange Communication System) symbols, expressive language output increased by 41% among nonverbal preschoolers (n = 37) over 12 weeks.

For multilingual learners, Izamar provides ‘Bridge Vocabulary’ flashcards with side-by-side translations (Spanish ↔ English, Arabic, Romanian, Ukrainian), phonetic spellings, and mouth-position diagrams. These were co-developed with linguists from the Instituto Cervantes and field-tested in 14 migrant reception centers across Andalusia and Catalonia. Teachers reported a 63% reduction in language-related anxiety behaviors during circle time when using these supports.

Research Limitations and Future Directions

While robust, current Izamar research has notable constraints. The majority of efficacy data derives from urban and semi-urban settings; only 12 of 36 RCT schools were located in rural municipalities (<5,000 inhabitants), limiting generalizability to geographically isolated communities. Additionally, longitudinal tracking beyond Year 1 remains incomplete: only 58% of the original 2022 cohort had verifiable primary school enrollment records for Grade 1 literacy and numeracy assessments. Santillana has committed €2.1 million to a 5-year follow-up study launching in September 2024, partnering with the Universidad de Salamanca to track academic trajectories through age 10.

Emerging adaptations include Izamar Digital+, piloted in 22 schools since January 2024. This version replaces 30% of physical manipulatives with AR-enabled tablets running Unity-built simulations (e.g., virtual magnifying glass revealing insect anatomy at 8× zoom, calibrated to match actual optical magnification of Bresser Junior 40× microscopes used in partner schools). Preliminary usability testing with 147 children showed no significant difference in engagement duration (M = 18.4 min, SD = 2.1) versus physical counterparts (M = 17.9 min, SD = 2.3), supporting equitable technology integration without displacing tactile learning.

Comparative Program Effectiveness

The following table compares Izamar with three widely adopted Spanish preschool curricula on key implementation metrics, based on aggregated data from ANECA’s 2023 Program Evaluation Report and Santillana’s internal quality assurance audits:

Notably, Izamar is the only program listed with both full LOMLOE certification and RCT-confirmed cognitive impact across multiple domains. Its cost-efficiency ratio—calculated as efficacy gain per euro invested—exceeds competitors by 29% according to the 2024 Universidad Carlos III cost-benefit analysis.

Implementation fidelity remains a critical variable: schools achieving ≥90% adherence to the daily 90-minute structure (as measured by RSC audits) demonstrated average cognitive gains 3.2× higher than those scoring <70% fidelity. This underscores that Izamar’s effectiveness is not inherent to the materials alone, but emerges from precise orchestration of time, adult responsiveness, and material affordances—an insight corroborated by classroom video analysis from the 2023 INCE observational study.

Practitioners should recognize that Izamar does not prescribe rigid lesson scripts. Instead, it offers ‘pedagogical guardrails’—non-negotiable structural elements—within which teachers exercise professional judgment. For instance, while the ‘Communication Circle’ must occur daily and use the Three Question Protocol, the specific topic (e.g., weather, garden growth, family stories) is locally determined. This balance of consistency and autonomy appears central to its scalability without dilution.

The program’s emphasis on embodied cognition—linking movement, gesture, and conceptual understanding—is particularly salient given recent findings from the 2024 European Early Childhood Research Journal meta-analysis showing that kinesthetic integration boosts retention of abstract concepts by 44% in preschoolers versus verbal-only instruction. Izamar’s ‘Number Walk’ (where children step on numbered floor mats while chanting ordinal sequences) exemplifies this principle in action, leveraging cerebellar-cortical pathways known to mature rapidly between ages 4 and 5.

As Spain continues refining its early education infrastructure under LOMLOE’s equity mandates, Izamar represents a rare convergence of rigorous developmental science, practical classroom feasibility, and systemic scalability. Its growing adoption—projected to reach 712 schools by 2025 per Santillana’s distribution forecast—reflects not marketing momentum, but documented returns on investment in foundational learning capacities. For educators, policymakers, and families alike, Izamar offers concrete, measurable pathways to nurture the cognitive, emotional, and social foundations upon which lifelong learning is built.