Loading...
Loading...
In 1984, educational psychologist Benjamin Bloom discovered that students who received one-on-one tutoring with mastery learning performed two standard deviations (2σ) better than students in conventional classrooms. That means the average tutored student outperformed 98% of their conventionally-taught peers.
Bloom called this the “2 Sigma Problem” because the challenge was clear: one-on-one tutoring is the most effective form of teaching ever measured, but it's economically impossible to provide a personal tutor for every student. Schools across the Global South face this challenge most acutely — large class sizes, limited resources, and high student-to-teacher ratios make personalized attention a distant dream.
One teacher lectures to 30-40 students. Fixed pace. Students who fall behind stay behind.
Students must demonstrate mastery before advancing. Corrective feedback loops. Self-paced.
Personal tutor adapts in real time. Socratic questioning. Immediate feedback. Deep understanding.
Bloom identified three elements that together produce the dramatic 2-sigma improvement. Learnify implements all three through AI:
Students must achieve 90% mastery on each concept before moving forward. No student is left behind, and no student is held back. This eliminates knowledge gaps that compound over time.
Mastery Gates enforce 90% comprehension thresholds on every concept. Spaced repetition ensures long-term retention.
A tutor who adapts to the individual student's understanding, misconceptions, and pace. The tutor uses Socratic questioning rather than direct instruction to build genuine comprehension.
Our AI Socratic Tutor, powered by advanced language models, adapts to each student in real time. It never gives direct answers — instead asking guiding questions that lead to understanding.
Immediate, specific feedback on errors with formative assessments throughout the learning process. Students know exactly what they need to improve and receive targeted help.
AI-generated question banks with auto-grading provide instant feedback. Detailed explanations, partial credit scoring, and targeted remediation address each misconception.
Learnify uses AI to deliver the three conditions of Bloom's 2-sigma effect at scale, making personalized mastery learning accessible to every student — not just those who can afford private tutors.
“The average student under tutoring was about two standard deviations above the average of the control class (the average tutored student was above 98% of the students in the control class).”
— Benjamin S. Bloom, “The 2 Sigma Problem: The Search for Methods of Group Instruction as Effective as One-to-One Tutoring,” Educational Researcher, Vol. 13, No. 6, 1984
In many schools across Africa, Latin America, and South Asia, a single teacher may be responsible for 50 to 80 students. Private tutoring is a luxury reserved for the wealthy. The result is a widening achievement gap where talent is wasted simply because of circumstances.
Learnify was built to change this. By using AI to deliver Bloom's proven tutoring methodology at scale, we can give every student access to the kind of personalized, mastery-based education that was previously only available to the privileged few.
Our platform works on low-bandwidth connections, supports offline access, and is designed for the realities of schools in resource-constrained environments. The science is clear — personalized mastery learning works. AI makes it possible for everyone.
Join Learnify and see what happens when every student gets a personal AI tutor.