activity
20232025
most citedEffective and Scalable Math Support: Evidence on the Impact of an AI- Tutor on Math Achievement in Ghana

8 citations · 13 across the 6 of their papers we have counts for

collaborators

7 papers

cs.CV2025

Seeing the Big Picture: Evaluating Multimodal LLMs' Ability to Interpret and Grade Handwritten Student Work

Owen Henkel, Bill Roberts, Doug Jaffe +1

Recent advances in multimodal large language models (MLLMs) raise the question of their potential for grading, analyzing, and offering feedback on handwritten student classwork. Th…

cs.AI2024★ 2 cited

Learning to Love Edge Cases in Formative Math Assessment: Using the AMMORE Dataset and Chain-of-Thought Prompting to Improve Grading Accuracy

Owen Henkel, Hannah Horne-Robinson, Maria Dyshel +3

This paper introduces AMMORE, a new dataset of 53,000 math open-response question-answer pairs from Rori, a learning platform used by students in several African countries and cond…

cs.CL2024★ 2 cited

Can Large Language Models Make the Grade? An Empirical Study Evaluating LLMs Ability to Mark Short Answer Questions in K-12 Education

Owen Henkel, Adam Boxer, Libby Hills +1

This paper presents reports on a series of experiments with a novel dataset evaluating how well Large Language Models (LLMs) can mark (i.e. grade) open text responses to short answ…

cs.HC2024★ 8 cited

Effective and Scalable Math Support: Evidence on the Impact of an AI- Tutor on Math Achievement in Ghana

Owen Henkel, Hannah Horne-Robinson, Nessie Kozhakhmetova +1

This study evaluates the impact of Rori, an AI powered conversational math tutor accessible via WhatsApp, on the math performance of approximately 1,000 students in grades 3-9 acro…

cs.CL2023

Using State-of-the-Art Speech Models to Evaluate Oral Reading Fluency in Ghana

Owen Henkel, Hannah Horne-Robinson, Libby Hills +2

This paper reports on a set of three recent experiments utilizing large-scale speech models to evaluate the oral reading fluency (ORF) of students in Ghana. While ORF is a well-est…

cs.CL2023★ 1 cited

Can LLMs Grade Short-Answer Reading Comprehension Questions : An Empirical Study with a Novel Dataset

Owen Henkel, Libby Hills, Bill Roberts +1

Open-ended questions, which require students to produce multi-word, nontrivial responses, are a popular tool for formative assessment as they provide more specific insights into wh…

cs.CL2023

Leveraging Human Feedback to Scale Educational Datasets: Combining Crowdworkers and Comparative Judgement

Owen Henkel, Libby Hills

Machine Learning models have many potentially beneficial applications in education settings, but a key barrier to their development is securing enough data to train these models. L…