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Good practice Imported

Rori — an AI math tutor on WhatsApp in Ghana

Ghana · Accra · See the Ghana profile · See the Accra profile

Evidence: Randomised controlled trial Top 1% 87/100 · Ask Evidence Copilot about this practice

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.

Commonly funded by

Philanthropic / foundation funding

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Data sources

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

Attachments

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