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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

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.

What's Included

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

Profile photo of Dr. Rocio del Castillo-Perez

Dr. Rocio del Castillo-Perez

Author of Teaching Reading in Spanish
Profile photo of Dr. Julia Stearns Cloat

Dr. Julia Stearns Cloat

Author of Teaching Reading in Spanish
Profile photo of Dr. James W. Cunningham

Dr. James W. Cunningham

Professor Emeritus of Literacy Studies, University of North Carolina at Chapel Hill
Profile photo of Dr. D. Ray Reutzel

Dr. D. Ray Reutzel

Dean of the College of Education, University of Wyoming
Profile photo of Jorge Cuevas Antillón

Jorge Cuevas Antillón

Adjunct Faculty/Lecturer, College of Education, San Diego State University
Profile photo of Doris L. Baker

Doris L. Baker

Associate Professor

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.