Table 2. The frequency of the use of integrated natural science teaching in secondary schools

From

Developing Students’ Problem-Solving Capacity through the Teaching of Integrated Natural Science in Secondary Schools in Vietnam

Chu Van Tiem, Dao Thi Viet Anh, Nguyen Thi Thanh Chi

American Journal of Educational Research. 2018, 6(6), 741-748 doi:10.12691/education-6-6-24