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Updated: May 14, 2026

Qualitative and Quantitative Validation of Tools with Rating Scales Aimed at Assessing the Quality of University Service-Learning
Published on: August 29, 2025
The Levels of Understanding framework, revised
1McGovern Institute for Brain Research, Center for Biological & Computational Learning, Department of Brain & Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. tp@ai.mit.edu
Abstract:
I discuss the "levels of understanding" framework described in Marr's Vision and propose an updated version to capture the changes in computation and neuroscience over the last 30 years.
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