For one of our projects we are looking for ontologies of middle and high school topics, such as math, science, history, and others. Is anyone aware of existing ontologies that are available for use?
Regarding math, try these:
You might also try contacting this guy:
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Kindly check https://www.edweek.org/ew/section/multimedia/how-3-states-are-digging-in-on.html?override=web
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