https://youtu.be/FmUYcuqIYHg Demonstration of experimental methods by Mr. Loeung Navan
Experimental activity for grade 4B students, lesson B, physical characteristics (water image)
Experimental Activity for Grade 4B Lesson Physical Characteristics (Water Image) Taught by Va sary Objective: Students practice in a group.
ការពិសោធន៍រំហួតស្វែងរកកំណកក្រាមអំបិល
សកម្មភាពប្អូនសិស្សនុសិស្សធ្វើការពិសោធន៍ជាក្រុមអំពីរំហួតស្វែងរកកំណកក្រាមអំបិល ។