How Union School District Closed Learning Gaps with Personalized Math Instruction
Union School District in San Jose faced a common challenge: classrooms filled with students performing anywhere from two grades below level to three grades above level. Traditional whole-class instruction simply wasn't meeting these diverse needs. Their solution? Happy Numbers, a personalized online math program that adapts to each student's individual learning journey.
The Results Were Remarkable
After implementing Happy Numbers with 1,715 K-5 students during the 2024-2025 school year:
Students who needed help most saw the biggest gains: Those starting below grade level achieved 1.2 to 1.4 grade levels of growth in a single year.
Overall performance jumped dramatically: The percentage of students meeting or exceeding grade-level expectations rose from 67% to 90%.
Foundational skills improved: For example, 97% of second graders mastered addition within 20, and 95% of first graders achieved fluency in addition within 10.
Easy Implementation, Big Impact
Teachers found the program surprisingly easy to integrate at just 45 minutes per week. They used it during math centers, as pre-assessments to form learning groups, and for meaningful homework. The platform's data helped identify exactly where students struggled while freeing teachers to focus on student-facing instruction, through small group work, rather than managing differentiated materials.
Union School District's success shows that with the help of Happy Numbers, personalized learning can meet every student where they are and drive remarkable growth.
To learn more about their experience and results, please follow this link.
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