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High School Biology Department: DNA Model Building Limited Time Challenge

May 31, 2024

On May 29, 2024, the 10th grade Biology teaching class successfully held a time-limited challenge on DNA model building, which was a bold innovation in the exploration of diversified assessment methods by the subject team.The structure and function of DNA, as a core content of the 10th grade Biology teaching, was fully reflected in this challenge.

Within the time limit, students were required to construct a model of DNA structure alone using the materials provided and answer relevant questions based on the model. Teachers will consider the scientific accuracy, innovation and aesthetics of the model to give a grade. This activity not only tested the students' mastery of DNA structure, but also practiced their problem solving ability in practical operation.

At the beginning of the activity, students were a bit confused with the materials, but after careful study of the components and comparison with the DNA structure, many of them gradually found the idea and quickly got into action. Some students with excellent hands-on skills, spatial imagination and a solid foundation in biology were the first to complete the challenge, and their works were not only accurate but also creative. While other students encountered some difficulties in the initial stage, they eventually completed the challenge through continuous attempts, summarization and adjustment, and deepened their understanding of DNA structure in the process.

It is worth mentioning that some students, after successfully completing the challenge, also cooperated with other students and added more innovative elements using limited materials, fully demonstrating their deep understanding of the DNA structure and creativity.

In the biology teaching, SHSID biology group has been committed to exploring and practicing diversified assessment methods. They have designed a series of vivid and flexible assessment methods, including experiments, research projects and debriefings, aiming at comprehensively assessing students' learning effects and abilities and providing them with rich and diversified learning experiences. During the evaluation design process, teachers gave full play to their team wisdom to ensure that the evaluation procedures, criteria and process were scientific, fair and objective.

Finally, the activity was successfully concluded with the students' creativity-filled models and laughter. The Biology Group will continue to work hard to explore and practice more innovative ways of teaching and evaluation to motivate students to actively participate and explore, and to continuously broaden the horizons and depth of their scientific knowledge.

(Written by Mengli Wang Pictures by Hui Liao Reviewed by Qian Zuo)