@book{55420,
	author = {Stern, Julie Harris, and Ferraro, Krista Fantin,},
	title = {Tools for teaching conceptual understanding, secondary :},
	publisher = {Corwin A SAGE Company,},
	year = {2017.},
	address = {Thousand Oaks :},
	url = {https://sk.sagepub.com/books/tools-for-teaching-conceptual-understanding}
}