Making World-Class Teaching Accessible to Every Learner.
Every missed lesson represents a lost opportunity. In the face of unprecedented teacher shortages and budgetary pressure, schools are struggling to maintain consistent, high-quality instruction. At 21C, we believe there’s a better way. We exist to ensure that every student has access to outstanding teaching, every single day, empowering schools to overcome the cover crisis and unlock pupil potential.
Addressing the Crises Facing UK Schools and Learners.
The Cover Crisis
Consistency Under Pressure
Teacher absence is a reality, but the high cost and variable quality of supply cover shouldn't compromise learning. Finding specialist maths teachers on short notice is increasingly difficult, leading to missed lessons, disrupted learning journeys, and immense pressure on school leaders. We saw a critical need for reliable, high-quality, and cost-effective cover that ensures continuity.
The Confidence Crisis
Unlocking Maths Potential
Beyond the classroom walls, too many students lack confidence in mathematics. GCSE resits remain stubbornly high, and access to effective, affordable support is inconsistent. This impacts not just individual attainment but future opportunities. We believe every learner deserves the tools and support to build fluency, revise effectively, and approach maths with confidence.
More Than Content - A Teaching Operating System
Evidence-Based Pedagogy
Every lesson, question, and module is built on proven teaching methodologies like cognitive load theory and retrieval practice, designed by experienced educators to maximise learning and retention.
Supporting Teachers, Not Replacing Them
Our platform handles lesson delivery when needed, freeing teachers to focus on targeted support, intervention, and relationship building. We provide data insights that empower professional judgment.
Seamless Integration & Data Insights
Designed for ease of use, 21C integrates with existing school systems. We provide clear, actionable data on student progress, enabling informed decision-making for teachers and leaders.
Our Guiding Principles
Pedagogy-Driven Approach
Our technology serves teaching, not the other way around. Every feature is grounded in sound educational research like cognitive load theory and retrieval practice. We design everything to genuinely enhance learning outcomes and support effective classroom practice.
Empowering Educators
We build tools designed to support and augment teachers, never replace them. Our platform aims to significantly reduce workload, provide actionable insights, and maintain teaching consistency, enabling educators to focus their valuable time on high-impact student interactions.
Accessible Excellence
We believe world-class teaching should be available to every learner, regardless of circumstance. Our platform is built for ease of use, affordability, and reliable scalability across diverse educational settings using existing school infrastructure.
Evidence-Driven Innovation
We leverage AI and data responsibly, always focusing on solutions that deliver measurable improvements for students and schools. We continuously refine our platform based on real-world classroom feedback, learning science, and performance data.
Real Results, Real Feedback from UK Schools
21C’s impact is best understood through the success stories of the schools, teachers, and students who use our platform.
Video Quality & Engagement
Pedagogy & Ease of Use
Intuitive Interface & Unique Features
Founded by Educators, Driven by Purpose
Rupert
Gather
Executive Chairman
Martin
Hoszowski
Chief Executive Officer
An MBA-qualified Chartered Marketer with two decades shaping digital strategy and AI innovation, Martin leads 21C’s mission. His experience, including time as a Google trainer, drives the development of a platform designed for real-world educational impact and global scale-up.
Robert
Wakeling
Director of Education
Alan
Judd, FCA
Commercial Director