21C POCKET ADAPTIVE STEM LEARNING
When a pupil gets stuck, the teaching should change.
Not another set of questions. A more responsive way to understand Mathematics and Science, designed especially for pupils who need a different explanation.
21C Pocket brings curriculum knowledge, diagnostic assessment and accessible teaching together, so the next step responds to what a learner actually needs.
For schools, academy trusts, educators and education partners.
THE QUESTION WE STARTED WITH
A wrong answer tells you something. But not necessarily what.
Did a pupil misunderstand the Science? Forget a mathematical step? Misread the question? Or make a one-off slip?
Those difficulties deserve different responses. Repeating the same exercise may never address the real obstacle.
21C Pocket is designed to move beyond right or wrong, towards understanding what should happen next.
QUESTION-FIRST
Incorrect.Show the answer. Try another question.TEACHING-FIRST
Why was it difficult?Check the underlying skill. Explain differently. Try again independently.WHAT ADAPTIVE MEANS HERE
Not just a different difficulty. A different teaching response.
At the centre is a curriculum-led learning engine. It selects relevant teaching and questions from structured content, adjusting challenge and support to the evidence a pupil provides.
- 01
Find the obstacle
Starting checks and targeted questions help distinguish a misconception, a prerequisite gap and an isolated mistake.
- 02
Explain in a way that helps
Clear teaching, carefully worked examples and alternative representations address the difficulty, not just the symptom.
- 03
Build independence
Guidance gradually falls away. Fresh, unaided questions test whether the pupil can now apply the idea.
- 04
Return and retain
Later checks revisit important knowledge. Supported success and independent performance remain distinct.

The approach is informed by explicit instruction, formative assessment, worked examples, reasoning and retrieval practice. Completing questions alone is not treated as proof of mastery.
CONNECTED STEM, NOT ISOLATED SUBJECTS
What if the Physics problem is actually Maths?
Sometimes the scientific idea is understood, but a pupil cannot rearrange the equation. Our connected-subject design is intended to identify the missing prerequisite, teach it appropriately and return the learner to Physics.
One connected learning experience, with the right support at the right moment.
A COMPLETE STEM AMBITION
Four core subjects. One approach to learning.
We are building towards a connected GCSE and International GCSE learning environment for Mathematics and the sciences, designed to extend into further qualifications and STEM pathways.
Maths
Number, Algebra, Geometry, Statistics and more, with typed mathematical answers where appropriate.
Early accessPhysics
Foundational concepts, calculations, graphs, adaptive explanations and carefully differentiated checks.
Early accessBiology
From cells and systems to the wider living world, with accessible scientific diagrams and targeted practice.
ExpandingChemistry
Particles, reactions and quantitative reasoning, with connections to the mathematics behind the science.
Expanding
Coverage is being expanded and reviewed subject by subject. Availability differs by module, awarding body and qualification route. Future pathways include Functional Skills Mathematics and selected international curricula.
ACCESSIBILITY IS PART OF THE TEACHING
Not just access to a lesson. A better opportunity to understand it.
A pupil’s difficulty may begin with dense wording, a complicated diagram or a presentation that does not suit their needs. We want the experience to reduce those barriers, particularly for pupils with SEND and those who have struggled with conventional approaches.
- Read aloud for page content and questions, with descriptions for graphs and diagrams.
- Adjustable text sizes, high-contrast options and clearer display preferences.
- Keyboard-accessible interactions and screen-reader-conscious presentation.
- Plain-language explanations, worked steps and more than one way to represent difficult ideas.
- Support that can be revisited without rushing a pupil on.
WCAG 2.2 Level AA informs the design and testing standard. This is a target, not a claim of independently certified compliance.

DESIGNED FOR REAL SCHOOL LIFE
One learning journey. Every perspective that matters.
21C Pocket is more than a pupil-facing app. Role-specific workspaces connect learning, support, administration and appropriate family oversight.
Pupils
Lessons, adaptive practice, targeted help, accessible controls and honest progress.
Teachers
Class progress, learning evidence, misconceptions and support requests.
School leaders
School and department insights to inform intervention and teaching priorities.
School administrators
Classes, users, roles, roster imports and school-managed account settings.
Parents and carers
Appropriate progress views and parent-led accounts for private home learners.
Tutors
Authorised access to relevant pupil progress, within defined permissions.
Platform administrators
School onboarding, operational oversight and permission-controlled, audited support.

SCHOOL-READY INFRASTRUCTURE
Useful to educators. Practical to administer.
- School-controlled Microsoft and Google sign-in pathways, where configured and authorised.
- Roster import, stable learner identities and scoped permissions.
- School separation, controlled sharing and logged support access.
- Personal learning evidence kept distinct by subject.
RESEARCH-INFORMED, NOT RESEARCH-WASHED
Serious about the science of teaching.
Ofsted has documented the consequences of moving pupils forward without secure prerequisite knowledge. Evidence-informed guidance also emphasises explicit instruction, scaffolding and self-regulated learning.
Our aim is to translate these principles into a practical, adaptive experience, then test what actually improves fresh unaided performance and later retention. We do not claim outcomes that have yet to be independently demonstrated.
GOOD QUESTIONS
A few things you may want to know.
Is 21C Pocket another AI chatbot or revision question bank?
No. It is a structured learning experience designed around curriculum skills, diagnostic questions, targeted teaching and independent evidence of learning. AI can support the wider content-development process, but a chatbot response is not our assessment method.
Does it cover the full GCSE and IGCSE curriculum today?
Not yet. The platform has early-access Maths and Physics pathways, with Biology and Chemistry in development. Available content and qualifications are identified as coverage is expanded and reviewed.
Can pupils learn at home without a school?
Yes, the platform includes a family-managed route for private learners. Access and onboarding arrangements depend on the stage of the early-access programme and relevant safeguards.
Can schools request a walkthrough or discuss a pilot?
Yes. We welcome conversations with schools, academy trusts, teachers, SEND specialists and education partners. Use the contact link below and mention 21C Pocket.
LET’S TALK ABOUT BETTER LEARNING
What could responsive teaching change for your pupils?
If you lead a school, support pupils with additional needs or are exploring an education partnership, we’d welcome the opportunity to show you the experience and hear what your learners need.
On the contact form, mention 21C Pocket and your school or organisation.