Three problems you own. One platform that addresses all three.
LESSO isn't an AI tool. It's three institutional outcomes wrapped in one platform.
Built for Head Teachers, Deputy Heads, and MAT Directors — not for demos.
Meet Mrs J. Your school AI co-teacher.
Unlike general AI tools, she connects natively to your Microsoft 365 and learns your school's curriculum framework, colours scheme, fonts, and each teacher's individual voice. She has ove 100 tools built in for admin, planning, resources, support and leadership. The longer your school uses LESSO, the sharper she gets.
Over 100 tools · UK curriculum-aligned · School-branded
Your teachers arrive prepared.
Every teacher in your school opens LESSO on Monday with their week already planned, to the same standard. Mrs J works overnight — your staff walk in ready to teach.
Across 28 staff · Curriculum-aligned · Ready to approve
From topic to taught. In under 10 minutes.
Complete lesson bundles — plans, slides, activities, and differentiated resources — built to your school's brand and curriculum framework. Every teacher. Every subject.
National Curriculum aligned · School-branded · Differentiated
One dashboard. Every teacher.
See adoption, output quality, time returned, and governor-ready reporting in one place. No chasing staff. No guessing. A live picture of how your school is running on AI — and what it's giving back.
Hours returned · Active teachers · Documents created · AI policy status
100% UK data. Full stop.
Your data never leaves the UK. LESSO is UK-GDPR compliant, built for UK schools, and generates a DfE-aligned AI policy in seconds. The only platform your governors can actually approve.
UK-GDPR compliant · No US servers · DfE-aligned · School-specific
How LESSO rolls out across your school
From a co-design kickoff to a ratified AI strategy in eight weeks — with a governor-ready impact report at the end of your pilot.
Configure LESSO for your school
We sit alongside your senior leaders in a kickoff workshop and set your school's brand, curriculum standards, and institutional context together. Every output Mrs J produces — across every teacher, every subject, every year group — then arrives on-brand, curriculum-aligned, and ready for review and approve.
Live today: BrandKit (logo, colours, fonts) with live preview, curriculum framework, Mrs J house tone, and tenant provisioning on Civo LON1. The SLT-facing self-serve setup console is being co-designed with our pilot cohort.
Deploy to your teaching staff
Roll out accounts to your teachers. Each teacher is guided through their own setup — uploading past examples, templates and frameworks, and tuning Mrs J's tone, length, and learning preferences so she writes the way they teach.
Live now: per-teacher onboarding, My Materials uploads, and Mrs J Preferences. Bulk-invite tooling and pilot-cohort tracking land alongside.
Teachers plan a week, a half-term, or the whole year
Teachers plan their week in the calendar — connected to Microsoft 365 today. The multi-lesson prep wizard handles whole sequences in one pass. LESSO's planning engine then prepares each upcoming day overnight, so teachers wake to lessons, slides and resources ready for review and approve.
Live now: Planner with Microsoft 365 calendar, multi-lesson prep wizard, and overnight lesson preparation. Google Calendar joins for the pilot cohort, alongside a long-range term-and-year view.
SLT oversee the whole school from one dashboard
Head teachers and MAT leaders will get a single source of truth: who's planning, what's being produced, where engagement is strong or weak — plus a direct comms channel to every teacher. We're shaping this dashboard with our pilot heads so it answers the questions inspections actually ask.
Foundation live: per-teacher activity, document and request counts, AutoPrep success rates, and direct voice comms already power our internal ops view. The SLT-facing dashboard is being co-designed with the pilot cohort and ships to them in-pilot.
Grow your school's AI capability over time
LESSO is both the platform and your school's AI strategy. The Academy is being built as the home for ongoing CPD on responsible AI use in education — co-curated with our pilot schools — so your AI policy isn't a document, it's a practice. By Q3 2026, every pilot classroom will have a shared, evolving baseline.
Live today: the Academy shell inside LESSO. CPD modules, the SLT curation console, and termly enablement are being co-designed with the pilot cohort so the content reflects what schools actually need.
Watch Mrs J plan a real lesson. Right now.
Pick a subject, year group and topic. Mrs J retrieves the relevant National Curriculum statements and produces a full lesson plan with citations — live, in under 30 seconds. This is the same engine that runs across your school.
Your lesson plan will appear here — structured, curriculum-aligned, and ready to use.
One upload. Everything your school needs.
Mrs J doesn't just write lesson plans. She builds the complete teaching week — automatically.
Complete, curriculum-aligned lesson plans for every teacher in your school — personalised to their year group, subject, and your school's pedagogical approach.
On-brand slide decks delivered straight to every teacher's workspace, built from their lesson plan — ready to teach, no design skills needed.
Differentiated classroom activities for all attainment levels. LESSO generates stretch tasks and scaffolded versions simultaneously.
Ready-to-print and digital worksheets, assessment tasks, and exit tickets — aligned to what was taught, not generic content from the internet.
Parent and carer communications drafted and ready to send — curriculum updates, trip reminders, and safeguarding notices — all on-brand and GDPR-aware.
LESSO organises everything into your Microsoft 365 structure automatically — the right files, in the right folders, for every teacher, every week.
A curation framework for staff CPD on responsible AI use — co-designed with our pilot schools so the modules match how your teachers actually learn. The Academy shell is live; the modules are being built with the cohort.
Complete, curriculum-aligned lesson plans for every teacher in your school — personalised to their year group, subject, and your school's pedagogical approach.
We're new. So is responsible AI in education.
We don't have testimonials from twenty schools yet — we work with a small number of schools each term and use those terms to build the case studies. Here is what you can verify about how we're built, and what the sector is saying about why this matters now. See if your school qualifies below.
Workload remains the most commonly cited reason teachers and leaders consider leaving the profession.
Generative AI has the potential to reduce workload across the public sector, freeing up teachers' time to focus on delivering excellent teaching.
Teachers in England work around 50 hours per week on average, significantly higher than comparable graduate professions.
Findings paraphrased from publicly available sector reports. We're happy to walk your governors through the originals.
The seven questions every head teacher asks us.
Plain answers, in writing, before you ever speak to a founder. If yours isn't here, ask it on the call.