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High School Biology Department: Biology Classes Showcased Blended Teaching Methods

May 6, 2025

The High School Biology Department has been actively innovating in classroom activity design. Teachers have enriched both teaching methods and content by fully utilizing campus teaching resources and diverse teaching models. Based on these, high school biology department teachers organized a series of open classes. On April 27, Ms. Yuan Yamin conducted an open class titled "Microscopic Observation of Edible Fungi" in Room E413 of the Hsi Building. As an enormous and diverse biological group, Fungi play a vital role in ecosystems and are closely related to human life. During instruction at the beginning of the class, Ms. Yuan skillfully employed multimedia equipment to display images of white mushrooms. She showed dynamic videos of their growth process, giving students a more intuitive understanding of mushroom morphology. Ms. Yuan then demonstrated methods for preparing and observing mushroom slice samples, guiding students in using laboratory equipment to prepare their own slices. Under her guidance, students collaborated effectively, actively discussed their observations, and used microscopes to examine their prepared samples. Through the microscope displays, students could clearly observe fungal structures like hyphae and spores. Ms. Yuan also guided students in using digital screen-sharing functions to compare microscopic images, identify sample differences, and analyze how the slicing operation can affect the results. Finally, Ms. Yuan concluded the class by comparing yeast and mushrooms, highlighting their significant roles in human production and daily life.







On April 30, Ms. Zhang Feifan conducted an open class titled "Dichotomous Key Classification" in Room B106 of the Zhongxing Building. The dichotomous key is a biological classification method using contrasting characteristics to identify organisms systematically. Before class, Ms. Zhang led students to collect fallen leaves on the campus. During the session, Ms. Zhang first asked students to describe the leaves' characteristics based on their observations. After that, students worked in groups to create dichotomous keys for their collected leaves, classifying them by features including color, petiole, margin, and the arrangement of leaflets. Through active discussion and careful comparison of leaf characteristics, students used provided cardstock and markers to organize the leaves into a logically structured classification system. Their collaborative effort resulted in a well-designed, scientifically accurate dichotomous key.









As an experimental science, biology requires extensive hands-on practice to deepen conceptual understanding. These open classes effectively combined digital teaching tools with practical laboratory and field work, allowing students to fully utilize campus resources while developing essential scientific skills for future exploration.


(Written by Xiao Deng    Pictures by Yongchi Li, Xiao Deng  Edited by Cody Turner  Reviewed by Qian Zuo)