NUMERICAL COMPETENCE DEVELOPMENT FOR STUDENTS AT 8TH GRADE THROUGH THE SYSTEM OF CHEMICAL EXERCISES

NUMERICAL COMPETENCE DEVELOPMENT FOR STUDENTS AT 8TH GRADE THROUGH THE SYSTEM OF CHEMICAL EXERCISES

Chau Thanh Tuan thaythanhtuanhoa@gmail.com An Huu Secondary School, Tien Giang Village 1, commune An Huu, Cai Be district, Tien Giang province, Vietnam
Nguyen Thi Chuc chucnguyenthi79@gmail.com Quon Long Secondary School, Tien Giang Village Quang Phu, commune Quon Long, Cho Gao district, Tien Giang province, Vietnam
Nguyen Thi Hong Van nguyensari1981@gmail.com Vo Duy Linh Secondary School, Tien Giang Cau Muong village, commune Tan Thanh, Go Cong Dong district, Tien Giang province, Vietnam
Huynh Gia Bao baoxuyensp1111@gmail.com Tien Giang Medical College No. 83, Thai Sanh Hanh, My Tho city, Tien Giang province, Vietnam
Summary: 
Developing numerical calculation skill is one of several measures that improve educational quality and effectiveness. This work has mentioned about the concept of competency, chemical practice skill and numerical calculation skill in chemical subject. The classified types of chemical exercises had been analyzed with corresponding instruction to develop numerical calculation skill for students through such types of exercises. Examples of chemical exercise for grade 8 students are detailed to demonstrate each type of exercises
Keywords: 
competency
numerical calculation skill
chemical exercises
junior high schoo
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