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Rori — an AI math tutor on WhatsApp in Ghana

Ghana · Accra · See the Ghana profile

A conversational maths tutor delivered over WhatsApp: a Ghana RCT found an effect size of ~0.37 (≈ an extra year of learning) at about US$5 per student per year — strong, equitable and cheap to scale.

~0.37
Learning effect size
+11 percentage points
Additional learning gain
~5 USD/student/year
Estimated cost
~1,000 students, 11 schools
Study sample (8 months)
Rori — an AI math tutor on WhatsApp in Ghana

Details

Promoter
Rising Academies
Keywords
AI tutor, Personalised learning & tutoring, WhatsApp, low-resource settings, maths

Context

Rori is an AI maths tutor built by Rising Academies that operates over WhatsApp, allowing it to run on basic phones in low-resource settings such as Ghana.

Objectives

The programme aims to deliver low-cost, personalised maths tutoring to students in under-resourced school systems.

Activities

Around 1,000 students across 11 Ghanaian schools received two 30-minute WhatsApp tutoring sessions per week over 8 months, as part of a randomised controlled trial.

Results

The trial found a statistically significant effect size of approximately 0.37 — roughly equivalent to an extra year of learning — corresponding to about an 11 percentage point gain, at an estimated cost of US$5 per student per year.

Conclusions

The evaluation frames Rori as a standout example of equitable, evidence-backed, genuinely low-cost personalised tutoring for the Global South.

Implementation

Implementation detail (cost, timeline, staffing, conditions for success) is not yet available for this practice.

Data sources

Where this practice's information was retrieved from, and when.

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