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Sample Programs Online
Request a Print Sample
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Sample Programs Online
Request a Print Sample
Contact a Rep
Sample Programs Online
Request a Print Sample
Contact a Rep
Sample Programs Online
Request a Print Sample
Contact a Rep
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Sample Programs Online
Request a Print Sample
Contact a Rep
Sample Programs Online
Request a Print Sample
Contact a Rep

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Our Principles


Explore Number Worlds ©2024

Welcome to Number Worlds—a PreK–8 intervention program that supports students where it counts. Rooted in decades of research and proven classroom results, Number Worlds accelerates mathematical understanding and effectively brings all students up to grade-level proficiency and beyond.

Our latest program update includes Building Blocks™ Adaptive software, which provides students with differentiated, independent practice—as well as conceptual development and remediation—along individualized learning pathways.

"Students are much more confident, they are excited about math, their participation has increased, and their behavior has improved because they understand the material."

—Lindsey Mayer, Ladue School District, Missouri
Number Worlds Program Overview, Research-Proven math Intervention for Grades PreK-8

To Proficiency and Beyond

Seamlessly pairing with any core math program, Number Worlds empowers students to build conceptual understanding, procedural skills, and fluency while applying their knowledge to real-life scenarios. Every teacher is equipped with effective, differentiated instructional tools to lead their class with confidence and meet the needs of every learner. Embedded with hands-on explorations, interactive activities, adaptive learning technology, and more, Number Worlds transforms math learning into an immersive and exciting experience.


Designed for Your Intervention Needs

Research-Proven Instruction

Number Worlds with Building Blocks Adaptive is a proven intervention solution created to bring students up to grade-level proficiency in math concepts and skills. Rooted in research and rigorously vetted with field tests, effectiveness studies, and more, this comprehensive solution helps you confidently prepare students to succeed and meet state standards.

Flexible Lessons with Easy
Implementation

Whether you have 60, 45, or only 30 minutes for targeted intervention each day, Number Worlds has a lesson plan option available for successful implementation—perfect for busy teachers who want to spend less time planning and more time doing. Each lesson follows an engaging four-part structure to routinize instruction and further simplify time-management.

Adaptive, Personalized Learning

The Building Blocks Adaptive digital experience, integrated within Number Worlds, is proven to increase students’ knowledge of essential mathematical concepts and skills. Using adaptive, personalized technology, Building Blocks guides each student down a unique learning path based on their performance that teachers can easily monitor and derive data from as needed.

Designed for Your Intervention Needs

Number Worlds is a proven effective curriculum intervention solution created to bring students up to grade-level proficiency in math fluency and literacy. Rooted in research and rigorously vetted with field tests, effectiveness studies, and more, Number Worlds helps you confidently prepare students to succeed and meet state standards.

Whether you have 60, 45, or only 30 minutes for targeted intervention each day, Number Worlds has a lesson plan option available for successful implementation—perfect for busy teachers who want to spend less time planning and more time doing. Each lesson follows an engaging four-part structure to routinize instruction and further simplify time-management.

The Building Blocks Adaptive digital experience, integrated within Number Worlds, is proven to increase students’ knowledge of essential mathematical concepts and skills. Using adaptive, personalized technology, Building Blocks guides each student down a unique learning path based on their performance that teachers can easily monitor and derive data from as needed.

Number Worlds Placement Test Guide cover

Download Placement Tests

Take the guesswork out of where to start students within the program by downloading our Placement Test and Number Knowledge Test PDF.

Number Worlds Placement Test Guide cover