Lattice Learning
K-12 assessment · 2 pilot districts
Lattice Learning · accommodations-aware assessment platform
Build an assessment platform that handles accommodations as first-class, not as an afterthought.
A K-12 EdTech wanted an assessment platform where accommodations (extended time, screen reader, alternate-format items) are first-class — not a settings page nobody finds. We built the platform with accessibility and accommodations in the schema from day one.
New · EdTech
Accessible K.
Build an assessment platform that handles accommodations as first-class, not as an afterthought.
Sample mockup · illustrative only
- Industry
- EdTech
- Timeline
- 7 weeks
- Team
- 3
- Service
- Web + Software
- Project tier
- Web App MVP / $19,995
The Problem
What was broken.
Existing platforms treated accommodations as a settings page. Teachers had to remember to toggle them per-student per-assessment. Alternate-format items lived in a different system. Reporting compliance was painful.
Our Approach
How we framed it.
Modeled accommodations as a per-student profile that travels with the student through every assessment. Item bank stores alt-format variants alongside the canonical version. Every screen passes axe-core in CI. Manual screen-reader pass on each item type.
Capability proof
What this case demonstrates.
This case makes the hidden work visible: strategy, architecture, delivery control, quality evidence, and handoff.
01 / Product judgment
Problem framed before UI
Existing platforms treated accommodations as a settings page. Teachers had to remember to toggle them per-student per-assessment. Alternate-format items lived in a different system. Reporting compliance was painful.
02 / Technical depth
8 stack decisions
Next.js 15, TypeScript, Postgres, Auth0, MathJax, axe-core
03 / Delivery discipline
5 delivery checkpoints
Accommodations workshop / Item + accommodations schema / Authoring + delivery
04 / Handoff quality
5 shipped artifacts
Item authoring UI with alt-format support / Per-student accommodations profile / Student-facing assessment delivery
Production artifacts
Inspect the work behind the visible result.
Each case exposes the surfaces, systems, evidence, and handoff package that make the shipped product usable after launch.
Experience layer
Buyer or user surface
Adaptive assessment with IRT scoring, mastery KPIs, and per-student concept tree visualization.
Proof 01
Build an assessment platform that handles accommodations as first-class, not as an afterthought.
Proof 02
Two days with a special-education coordinator and a screen-reader-using user.
Proof 03
Item authoring UI with alt-format support
Production signals
Observable
Errors, logs, alerts, or dashboards included.
Accessible
Accessibility treated as a shipping requirement.
Risk-aware
Security and compliance boundaries named.
Release-ready
Deployment or store-release path included.
Before / after · product UI mockup
Industry · EdTech
Before:Quizzes built in Moodle; results dumped to CSV; mastery tracked in a separate spreadsheet.
After:Adaptive assessment with IRT scoring, mastery KPIs, and per-student concept tree visualization.
How the engagement ran.
- 01Week 1
Accommodations workshop
Two days with a special-education coordinator and a screen-reader-using user.
- 02Week 2
Item + accommodations schema
Modeled items and per-student profiles as first-class data.
- 03Week 3-5
Authoring + delivery
Built the authoring UI for item authors and the student-facing delivery experience.
- 04Week 6
Accessibility CI + manual QA
axe-core in CI, manual screen-reader QA, fixed every issue surfaced.
- 05Week 7
Pilot + reporting
Pilot with two districts, compliance reporting flows tested with district administrators.
- 1
Week 1
Accommodations workshop
Two days with a special-education coordinator and a screen-reader-using user.
- 2
Week 2
Item + accommodations schema
Modeled items and per-student profiles as first-class data.
- 3
Week 3-5
Authoring + delivery
Built the authoring UI for item authors and the student-facing delivery experience.
- 4
Week 6
Accessibility CI + manual QA
axe-core in CI, manual screen-reader QA, fixed every issue surfaced.
- 5
Week 7
Pilot + reporting
Pilot with two districts, compliance reporting flows tested with district administrators.
Deliverables
What we shipped.
- ✓Item authoring UI with alt-format support
- ✓Per-student accommodations profile
- ✓Student-facing assessment delivery
- ✓axe-core CI on every PR
- ✓Compliance reporting dashboard
Outcomes.
engagement targetsPlan: accommodations are a per-student profile, not a per-assessment toggle
Plan: item bank stores alt-format variants alongside the canonical item
Plan: wCAG 2.2 AA pass on every screen, in CI on every PR
Plan: manual screen-reader QA on each item type
Plan: compliance reporting comes out of the same data, not a separate system
Honest challenges
What we got wrong (or almost wrong).
The pretty version of any case study skips this part. We don't.
- 01
MathJax + screen readers requires care; we shipped MathML with MathJax fallback, validated on JAWS and VoiceOver.
- 02
Some districts have legacy SSO; supported SAML in addition to Auth0's hosted login.
In our own words
Accommodations have to live in the schema, not in a settings page. Once a per-student profile travelled with every assessment, teachers stopped having to remember the right thing — the platform did.
From the Hayaiti team
Engineering · design · security
Technical blueprint
How the work holds together.
Buyers should see that the visual layer is backed by architecture, quality gates, and operational ownership.
Experience
1Application
2Data
3Operations
4Security
5Stack used
8 technologiesRelated
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