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Mosaico: Fundamentos por i-Ready

Authentic Spanish-Language Foundational Skills

Support bilingual learners with structured, research-based early literacy instruction.

Overview

Building Confident Spanish Readers

This program delivers authentic Spanish-language foundational skills instruction for young learners. When paired with Magnetic Foundations, it creates a seamless bilingual teaching experience that strengthens skills in both languages and supports biliteracy.

Explicit, systematic instruction and high-quality resources equip educators to develop reading fluency and build confident learners. Original content by authentic voices engages students, reinforces key skills, and honors a variety of cultural experiences.

Together, Mosaico: Fundamentos and Magnetic Foundations provide an aligned approach to biliteracy, preparing students to thrive in a multilingual world.

Program Type:Instruction
Curriculum Type:Supplemental
Subject:Literacy
Grade(s):K–2
Language:Spanish
Format:Print, Digital
Copyright:2026

Program Features

Build a Foundation for Spanish Reading

Explicit, systematic instruction guides students to learn to read fluently and develop a lifelong love of reading.

Comprehensive Teacher Supports Simplify Instruction

Step-by-step guidance and embedded resources help teachers deliver effective lessons tailored to a variety of learning needs.

Rigorous, Standards-Aligned Instruction Supports Learning

Research-based best practices ensure instruction is structured and developmentally appropriate.

Targeted Callouts and Tools Enhance Understanding

Instructional scaffolds, callouts, language variations, and cognates highlight essential literacy skills, making learning more accessible and engaging.

Structured Instructional Routines Strengthen Skills

Systematic lessons provide a clear path for skills development, reinforcing prior knowledge while introducing new concepts.

Bilingual Articulation Videos Develop Accurate Pronunciation

Modeled pronunciation and phonetic comparisons between Spanish and English support clear articulation and confident reading.

Engage Students with Relatable Content

Original content by authentic voices deepens student connections by honoring their cultural experiences and sparking curiosity.

Stories by Spanish-Speaking Authors Ensure Authenticity

Stories written by native Spanish-speaking authors maintain linguistic authenticity and celebrate a variety of cultural narratives.

Decodable Texts Reinforce Key Skills and Guide Literacy Growth

Thoughtfully written texts, aligned to the scope and sequence, create opportunities to apply phonics knowledge in context, building confidence and fluency.

Culturally Rich Illustrations Bring Stories to Life

Artwork by illustrators from around the Spanish-speaking world enhances storytelling, allowing students to see themselves reflected in the content.

Connected Texts Create a Cohesive Learning Experience

Intentionally linked texts, evenly split between fiction and nonfiction, provide opportunities for students to apply what they’ve learned while reinforcing vocabulary and content knowledge.

Provide a Unified Approach to Biliteracy

Spanish and English foundational skills instruction pairs seamlessly to empower Multilingual Learners.

Structured Leadership Support Strengthens Implementation

Administrators receive detailed guidance to ensure a smooth and consistent biliteracy program across classrooms.

Aligned Units and Topics Support Language Transfer

Lessons are intentionally designed to connect topics across both languages, reinforcing understanding and skills application.

Bilingual Instructional Supports Enhance Learning across Languages

Resources designed for both Spanish and English instruction help teachers meet the needs of bilingual learners while maintaining linguistic integrity.

Language Links Support Metalinguistic Connections

Designed to highlight cross-linguistic connections, this resource facilitates skill transfer and deepens language understanding.

Expert-Driven Design Ensures Research-Based Instruction

Developed with insights from biliteracy advisors, the program incorporates best practices to support strong, effective literacy growth in both languages.

Implementation Guides Help Teachers Navigate Instruction

Clear, research-based strategies make it easier for teachers to deliver effective biliteracy lessons with confidence.

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What's Included

Buying Information

Guía del maestro (Teacher's Guide)

30 weeks of explicit, systematic foundational skills lessons
Easy-to-follow routines

Cuaderno del estudiante (Student Worktext)

Daily purposeful practice opportunities
Weekly cumulative review
Connected texts for every lesson

Classroom Decodable Set

Grade K

El gran libro de lectura (Alphabet Tales Big Book)
30 Los sonidos del español (Alphabet Books)
15 Mis libros de lectura (Magnetic Readers)

Grades 1 and 2

30 Mis libros de lectura (Magnetic Readers)

Foundational Skills Cards

Tarjetas de sonido y ortografía (Sound Spelling Cards)
Tarjetas de articulación de sonidos (Articulation Cards)
Tarjetas para formar palabras (Word Building Cards)
Tarjetas de Superpalabras (Super Word Cards)

Digital Access through Teacher Toolbox

Lesson slides
Bilingual articulation videos
Support for families
Additional practice and resources for differentiation
Language Links
Implementation Guide for Teachers
Implementation Guide for School Leaders

Related Resources

Leveraging Language Connections in Biliteracy Programs

In this whitepaper, Mosaico authors Dr. Rocio del Castillo-Perez and Dr. Julia Stearns Cloat provide a pr...

Meet the Experts Behind the Program

Dr. Rocio del Castillo-Perez

Author of Teaching Reading in Spanish

Dr. Julia Stearns Cloat

Author of Teaching Reading in Spanish

Dr. James W. Cunningham

Professor Emeritus of Literacy Studies, University of North Carolina at Chapel Hill

Dr. D. Ray Reutzel

Dean of the College of Education, University of Wyoming

Jorge Cuevas Antillón

Adjunct Faculty/Lecturer, College of Education, San Diego State University

Doris L. Baker

Associate Professor

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Related Programs

Magnetic Foundations

Develop early literacy in Grades K–2 with explicit, systematic foundational skills instruction grounded in the Science of Reading and supported by high-quality decodable texts that begin to build background knowledge.