On May 24, 2024, Mrs. Narin Rong Assistant Principal for Preschool Kindergarten and Elementary School and teachers of American Intercon School got into the grade 4B students to do the teaching demonstration. Mrs. Chanthou Phat taught the grade 4B students in Maths about Decimal Number. The purpose of this teaching demonstration is to share knowledge about teaching methods to teachers as well as the new techniques and experiences for teaching and providing knowledge to students and develop their capacity. This teaching demonstration is also an experience for teachers to strengthen their teaching and fulfill their shortcomings, and to share educational work to teachers in order to teach and provide knowledge to their students for their better study.