Number Worlds® 2015 is a highly-engaging, research-proven, teacher-led math intervention program that was built on rigorous state standards to bring math-challenged PreK-8 students up to grade level with Real World Applications. Number Worlds helps struggling learners in Response to Intervention Tiers 2 and 3 achieve math success and quickly brings them up to grade level by intensively targeting the most important standards.
- JoAnne, Intervention Specialist, North Carolina
