id	keyword
ger-408	teachers
ger-408	school
ger-408	test
ger-408	training
ger-408	learning
ger-408	students
ger-408	education
ger-408	situations
ger-408	approach
ger-408	development
ger-408	reform
ger-408	mathematics
ger-408	curriculum
ger-408	elementary
ger-408	project