@book{1843,
	author = {Chapin, Suzanne H.},
	title = {Classroom discussions: using math talk to help student learn},
	address = {United States of America: Math solutions, 2009},
	edition = {Second edition},
	url = {https://itmsp.museknowledge.com/UOH?qurl=https://libros-uoh.uoh.cl//ebook_2/classroom-discussionsusing-math-talk-to-help-student-learn/}
}