On December 1, 2021, Mr. Hoeun Piseth led the 12th graders in Biology class of American Intercon School, Choam Chao campus to do an experiment under the theme “Examining the flower puzzle and pollination using a microscope”. Before starting, the teacher has presented as well as described the experimental materials, such as: microscope, razor blade or scissors, tissue and various kinds of flowers (hibiscus, lotus, roses and tuberose flower…). The purpose of the experiment is for students to describe the different parts of the flower, compare the flower forms from different types and examine the shape of the pollen.