Going through my Downloads folder I found a study by Babu and Mendro from 2003's AERA conference. They found that low achievers benefitted greatly from having more effective teachers for three years, but were less likely to get them:

"AI-generated poetry is indistinguishable from human-written poetry and is rated more favorably": go.nature.com/3O9RHAa
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Nice counterbalanced study of 2nd graders learning 3 and 4 times tables comparing recitation and retrieval (with flash cards). Spoiler alert: retrieval is better: bit.ly/3A4qhIN

Just tracked down this, from Abraham Lincoln, in 1832:

I asked ChatGPT4o to give me the data from this graph in CSV format. It replied "It appears that the file you uploaded is an image. I cannot directly extract the numerical data (blue crosses) from the image alone." I asked the free version of ClaudeAI to do the same, and it gave me the data I wanted

I asked ChatGPT4o to represent the data in a table in the form of a bar chart. Here are the table and the chart: