01
Explicit sound instruction
Teach sound-symbol relationships directly, then review them often enough to become automatic.
Phonics curriculum for ages 3–7
A complete phonics curriculum you can teach in 15 minutes a day
Once gives you a scripted, Science of Reading–aligned sequence that builds from first sounds to independent reading in short, 15 minute sessions.Free until your child reads their first 3-letter word. No credit card required.
Inside the Once curriculum
200 carefully spiraled lessons
- Complete adult script
- Sound-to-story sequence
- Writing and decoding
- Mastery-paced progress
The quick answer
What should a complete phonics curriculum include?
More than letter sounds. Families comparing phonics programs, including phonics based reading programs, should look for a cumulative path from hearing sounds to reading words, sentences, and connected stories, plus a clear way for the adult to teach each step. That is the difference between isolated activities and a program grounded in the Science of Reading.
02
Phonemic awareness
Practice hearing, segmenting, blending, and working with sounds in spoken words.
03
Cumulative decoding
Build new words from phonics patterns the child has learned instead of asking them to guess.
04
Connected, decodable reading
Move from isolated words into sentences and stories that apply the code already taught.
05
Encoding and writing
Strengthen reading by asking the child to say sounds while forming letters and spelling words.
06
A sequenced, mastery-paced path
Make what comes next explicit while letting the child move as quickly as they can or as slowly as they need.
Once’s 200-lesson worked example
A scope and sequence that keeps building
Once’s 200 lessons are carefully spiraled, so earlier skills keep returning as new ones are introduced. Each lesson contains roughly five to ten short tasks selected from sound review, segmenting, blending, rhyming, word reading, non-phonetic words, story reading, finger tracking, and writing.
0–101
Start the routine
Learn the lesson routines, connect letters and sounds, and begin blending simple words.
30+2
Read first decodables
Apply taught sounds in lesson-aligned booklets and connected text.
843
First-grade skills
Once’s internal reference point for the content needed to read at a first-grade level.
1404
Complex connected text
Read longer sentences with varied syntax, vocabulary, and taught patterns.
1665
Second-grade skills
Once’s internal reference point for the content needed to read at a second-grade level.
2006
Complete the sequence
Finish the full spiraled early-reading progression.
Curriculum landmarks, not deadlines. Children advance based on mastery and may complete more or less than one lesson in a 15-minute session.
See the curriculum guideInside a 15-minute session
How one lesson turns phonics knowledge into reading
A lesson is not a worksheet or a single drill. Depending on what the child is learning, the script selects five to ten short tasks and connects them to skills taught earlier. Here is a representative flow.
1
Review a sound
Reconnect with a previously taught letter-sound relationship so the learning stays cumulative.
2
Hear and work with sounds
Practice a task such as segmenting, blending, or rhyming before print adds another layer.
3
Blend and read words
Use known sounds from left to right to decode words instead of guessing from a picture or sentence.
4
Read connected text
Apply the same knowledge in sentences and an ongoing story, alongside taught non-phonetic words.
5
Write what was learned
Say sounds while forming letters or spelling words to strengthen the reading-writing connection.
A strong sequence reduces guessing for the child and the parent
Without a cumulative sequence, phonics activities can become disconnected: a worksheet on one sound, a book with untaught patterns, then a game practicing something else. The strongest phonics programs connect those moments so each new task rests on knowledge the child has already secured.
Once combines the sequence with one-to-one delivery and coaching. The script makes the daily lesson usable; the curriculum makes it cumulative; the coaching gives the adult support when a child needs more practice or a different pace. Families can see how that model fits a full homeschool reading program, while children can apply taught patterns with Once’s free decodable books.
Research and evidence
Once's curriculum and model is being studied rigorously in schools
LXD Research · ESSA Tier II
0.46SD effect
In a 2024–25 quasi-experimental study, LXD Research examined kindergarten students who began below the national median on Fastbridge and completed 80 or more Once sessions. The estimate was statistically significant at p<0.001, compared with matched students receiving their schools’ typical reading support.
Important qualifier: the study was quasi-experimental rather than randomized, so unmeasured differences could still have influenced the result.
Read the LXD Research studyStudy in progress
Johns Hopkins randomized controlled trial
Once is partnering with Johns Hopkins University’s Center for Research and Reform in Education on a multi-year randomized controlled trial of kindergarten reading outcomes.
The published brief explains the design, timeline, and treatment/control matching. Results have not yet been published.
Read the JHU randomization briefStart with Lesson 1
Try a complete phonics lesson before you choose a curriculum
Start Once at Home at your child’s pace. It is free until your child reads their first 3-letter word, with no credit card required. Continue for $49/month when you are ready.
Phonics curriculum questions
What families ask before starting
What is a phonics curriculum?
A phonics curriculum is a planned sequence for teaching how written letters and spelling patterns represent spoken sounds. A complete program also connects that code to phonemic awareness, decoding, connected reading, and writing.
How should I compare phonics programs?
Look beyond the number of activities or books. Strong phonics based reading programs provide an explicit, cumulative sequence; phonemic-awareness practice; decoding and encoding; connected text; clear mastery checks; and instructions an adult can use consistently.
Can I use Once as a homeschool phonics curriculum?
Yes. Once at Home is designed for a parent or other trusted adult to teach one child at a time. The lesson script supplies the language, sequence, and activities, while coaching is available for support.
Do I need teaching experience?
No teaching credential is required. Once provides a complete script for each session, so the adult can focus on the child rather than writing lesson plans.
Does each lesson take one day?
Not necessarily. A lesson is a spiraled unit of instruction, not a fixed daily assignment. Children move as quickly as they can or as slowly as they need; one 15-minute session may cover part of a lesson or more than one.
Is Once only phonics?
Once uses explicit phonics as a core part of early reading instruction, while also including phonemic awareness, word reading, non-phonetic words, connected story reading, finger tracking, and writing.
How long is the Once phonics curriculum?
The full sequence contains 200 lessons. Progress is mastery-paced, so families should not treat the lesson count as a fixed 200-day schedule.