id	keyword
flr-245	problem
flr-245	representations
flr-245	teachers
flr-245	solving
flr-245	word
flr-245	word problem
flr-245	use
flr-245	problem solving
flr-245	students
flr-245	teaching
flr-245	van
flr-245	doi
flr-245	research
flr-245	mathematics
flr-245	step