id	keyword
bcpe-1579	teaching
bcpe-1579	students
bcpe-1579	research
bcpe-1579	education
bcpe-1579	pstm
bcpe-1579	problem
bcpe-1579	teachers
bcpe-1579	science
bcpe-1579	school
bcpe-1579	method
bcpe-1579	solving
bcpe-1579	learning
bcpe-1579	chinese
bcpe-1579	mathematics
bcpe-1579	literature