Early reading curriculum
Recognized by
Trusted by school districts nationwide
The method
With Once's scripted curriculum and video coaching, instructional aides, assistants, and parents have taught tens of thousands of children to be confident, successful readers.
Every learner
The Once curriculum starts with learning sounds and progresses through chapter books at a mid-2nd grade level. Our in-person model provides one-on-one reading tutoring for any child from age 3 to 2nd grade, including children learning English for the first time.
Independent and district-wide studies show reading growth across different schools, assessments, and implementation models.
Explore all researchLXD Research · 2024–25
Quasi-experimental0.46
Standard-deviation effect at 80+ Once sessions
Moved into a higher national quartile
The analysis included 748 kindergarteners across 13 schools who started below the 50th percentile. The 0.46 result applies to 568 students who completed at least 80 sessions and was statistically significant at p<0.001.
Read the Fastbridge studyTangipahoa Parish · 2025–26
District-wide study24%
Fall benchmark
+44 points
68%
Spring benchmark
43rd → 61st
Median national percentile
1,263
Kindergarteners across 14 schools
The teachers, the Once instructors, the principals were just pleasantly surprised at the results of just one year with Once—which is why we decided to extend that into the first grade.
Our kids in Once grew almost twice as fast as kids that did not receive Once. That was the number one reason why we have it in every school now.
This program has been amazing!! We started our daughter on it ~3 months before she turned 3 and she's reading words already... I was floored.
The limited prep work that I have to do before each lesson has allowed me to be more present in my daughter's learning and celebrate each milestone.
After doing a trial with Once, I knew it was the right fit. My daughter now recognizes letters and words in the 'wild' and enjoys pointing them out or trying to sound them out.
Narrative curriculum
Most early-reading content is boring because early readers can't read enough words to tell a real story. Once chains the practice text of all 200 cycles into a single, cohesive narrative with consistent characters, so children are genuinely excited to read to find out what happens next.
Get started
Join thousands of families and schools using Once's reading program to teach early literacy in 15 minutes a day.