@inbook{8146d0816f874766be8e80c22313019e,
title = "Earth science",
author = "Duschl, {Richard A.} and Smith, {Michael J.}",
note = "Funding Information: PLESE emerged from a teacher enhancement initiative at Ohio State University funded by the National Science Foundation in 1990. Initial efforts within PLESE led to the formation of a set of core concepts considered prerequisite for a 21st-century view of planet Earth, and the set of seven understandings that constitute a framework for Earth systems education listed in Table 3.",
year = "2001",
doi = "10.1016/s1479-3687(01)80030-4",
language = "English (US)",
isbn = "0762306157",
series = "Advances in Research on Teaching",
publisher = "JAI Press",
pages = "269--290",
booktitle = "Subject-specific instructional methods and activities",
address = "United States",
}