Curriculum comparison
Wilson Fundations vs IMSE Orton-Gillingham: which structured-literacy program?
Both are Orton-Gillingham-derived. Both are explicit, systematic, cumulative, multi-sensory. The choice usually comes down to scope: a published K-3 turnkey core, or a K-12 trained-teacher methodology that scales from Tier 1 into intensive intervention.
Storytime aligns to each program's K-2 phonics band.
Quick reference
Wilson Fundations
- Publisher
- Wilson Language Training
- Grade range
- K-3 core (Levels K, 1, 2, 3)
- Cost
- $200-400/student/year (materials + required training amortized)
- Pedagogy
- Orton-Gillingham-derived; multi-sensory; explicit, systematic, cumulative
IMSE Orton-Gillingham
- Publisher
- Institute for Multi-Sensory Education (IMSE)
- Grade range
- K-2
- Cost
- Training-driven cost model; materials moderate
- Pedagogy
- Orton-Gillingham-derived; multi-sensory; explicit, systematic, cumulative; emphasizes the trained-teacher delivery model
Where they actually differ.
14 dimensions district leaders care about — pedagogy, cost, training, scope, intervention.
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| Dimension | Wilson Fundations | IMSE Orton-Gillingham |
|---|---|---|
| Origin year | 1990s; current edition (3rd) released 2020 | Founded 1996; multi-decade refinement of the O-G method for classroom use |
| Pedagogical lineage | Orton-Gillingham + research-informed adaptations | Orton-Gillingham, delivered via certified-teacher model |
| Grade scope | K-3 core (4 levels); separate Wilson Reading System for intensive intervention | K-12 — same O-G methodology scales from early core into upper-grade intervention |
| Lessons / structure | ~140 lessons per level, structured weekly with published scope | Routine-based daily lessons built from O-G procedures; pacing set by trained teacher |
| Daily time | 30 min core + word-study time | 30-60 min depending on tier and grade band |
| Training requirements | Required Wilson-certified PD; multi-day institute typical | Training-first model: 30-hour comprehensive course is the entry point; deeper certification pathways available |
| Cost per student | $200-400/year/student (materials + training amortized) | Training-driven cost; materials moderate — per-student total varies by training depth and class size |
| Decodable text included | Yes — leveled decodable readers per level included | Decodable practice text provided through training materials; districts often supplement |
| Phonemic-awareness component | Embedded daily in 'Drill Sounds' and 'Echo Find Letter' routines | Embedded — PA is part of the standard O-G multi-sensory routine |
| Differentiation built-in | Whole-group with built-in differentiation activities per lesson | Designed for flexible delivery: whole-group, small-group, and 1:1 intervention from the same playbook |
| Assessment built-in | Unit checkpoints + Wilson 'Trick Word' assessments; pairs with screeners | Diagnostic and progress-monitoring tools provided through training; pairs with universal screeners |
| State-mandate friendliness | Cited in many state implementation guides; explicit SoR-aligned | Cited in many state implementation guides; explicit O-G / SoR-aligned |
| Intervention capability | Tier 1/2 in K-3; intensive intervention deferred to Wilson Reading System | Same methodology spans Tier 1, Tier 2, and Tier 3 across K-12 — single program, scaled by tier |
| SPED / dyslexia overlap | Strong fit; many SPED teams pair Fundations (core) with Wilson Reading System (intensive) | Strong fit; widely adopted by SPED and dyslexia-focused programs for its trained-teacher model |
Which one fits which district profile.
Both produce good outcomes when implemented with fidelity. The choice is usually about context — grade-band coverage, intervention needs, and whether the district leans on a published program or a trained-teacher delivery model.
Choose Wilson Fundations if you…
- Schools/districts wanting a published, branded, turnkey K-3 core with materials bundled
- Settings where Wilson Reading System is already in use for intensive intervention
- Districts that want a multi-year (K-3) cohesive scope from a single publisher
- Teams that prefer a fixed scope-and-sequence and per-level student workbooks
Choose IMSE Orton-Gillingham if you…
- Districts needing K-12 intervention coverage from a single methodology
- Schools already in an Orton-Gillingham certification pipeline (or building one)
- Settings prioritizing dyslexia-focused intervention with deeply trained teachers
- SPED and resource-room contexts where the same trained teacher serves multiple grade bands
- Districts that value the trained-teacher delivery model over a published-program model
How Storytime works with both
You don't have to pick one to use Storytime — we cross-tag both scopes.
Storytime's decodable library is cross-tagged against the phonics scope of both Wilson Fundations (K-3 core, by level) and IMSE Orton-Gillingham (K-12 by concept). On-demand decodable generation respects each curriculum's caps — generate a book inside Wilson Fundations Step 2.3's inventory, or inside an IMSE concept currently in instruction, and the model won't reach for untaught patterns. Whichever delivery model you adopt, the practice layer fits.
FAQ
Common questions about the comparison.
- What's the actual cost difference between Wilson Fundations and IMSE?
- Wilson Fundations is typically $200-400 per student per year when training and materials are amortized — there's a clear materials/workbooks line item per level. IMSE's cost is training-driven rather than per-student materials: the 30-hour comprehensive course (and any deeper certification) is the dominant line item, with materials at a moderate cost. Districts comparing the two usually find Wilson easier to budget per student and IMSE easier to budget per teacher.
- How does the training requirement compare?
- Both require professional development — neither is a 'pick up and teach' program. Wilson Fundations requires Wilson-certified PD (a multi-day institute typical for new adopters). IMSE leads with training: the 30-hour comprehensive course is the entry point, with optional deeper certification pathways. The IMSE model assumes the teacher's training is the primary driver of fidelity; the Wilson Fundations model leans on both the training and the published scope/materials.
- Do the K-3 and K-12 scopes overlap?
- Yes, in K-3 specifically — both programs cover the same foundational phonics terrain (letter sounds, short vowels, blends, digraphs, syllable types) in the K-3 band. IMSE then continues the same O-G methodology into upper elementary, middle, and high school for intervention; Wilson Fundations stops at grade 3 and hands off to Wilson Reading System for older striving readers.
- Which is better for dyslexia-focused intervention?
- Both have strong SPED traction, but they're built for different delivery models. IMSE's entire program is structured around the trained Orton-Gillingham teacher serving students 1:1 or in small groups across K-12 — that's a natural fit for dyslexia-focused intervention. Wilson Fundations is the K-3 core piece of the Wilson family; the intensive dyslexia-focused intervention in that family is Wilson Reading System, not Fundations.
- Can a school use one for core and the other for intervention?
- Yes, and it's a common pattern. A school can run Wilson Fundations as the K-3 Tier 1 core and use IMSE Orton-Gillingham (delivered by certified teachers) as Tier 2/3 intervention across the grade bands. The methodologies are compatible — both are O-G-derived and multi-sensory — so students moving between them aren't seeing fundamentally different procedures.
- Are they really both Orton-Gillingham?
- Yes. Both trace their lineage to the Orton-Gillingham approach: explicit, systematic, cumulative, multi-sensory phonics taught with diagnostic precision. Wilson Fundations packages O-G into a published K-3 program with materials and a fixed scope. IMSE delivers O-G primarily through trained teachers, with materials supporting the trained delivery. Both reflect the same underlying methodology; they differ in delivery model rather than pedagogy.
- How does Storytime support both?
- Storytime cross-tags every decodable book in its 2,000+ book library against the phonics scope of both programs. On-demand decodable generation respects each curriculum's caps — generate a book inside Wilson Fundations Step 2.3's inventory, or inside an IMSE concept currently in instruction, and the model won't reach for an untaught pattern. Whether a school is running Wilson Fundations as a K-3 core or IMSE O-G across K-12, the practice layer fits.