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Trigonometry: Learning-by-Doing Outside the Classroom

By: Ponirin, EBPP Math teacher.

Trigonometry is a module in mathematics lessons that studies the relationships between the angles and sides of triangles. This science is often used in various fields such as physics, engineering, astronomy, and everyday life. Given that the area where EBPP students live is filled with many tall trees, I introduced trigonometry to them to determine the height of the trees without using a measuring tape. In this lesson, I taught the students how to use a clinometer directly to measure angles and the heights of trees, determine the slope angles of hills, and monitor environmental changes as outdoor activities. After taking measurements, the students summarized their activities and presented their findings in front of the class.


Applying trigonometry in everyday life has many important benefits that can enhance students' understanding of their environment and assist in various practical tasks. One immediate benefit is that students can apply trigonometry to determine the slope of land in their gardens and to monitor environmental changes.



These outdoor activities provide a new atmosphere for students to experience a more engaging learning process. I hope that through this learning process, students will become more interested in and better understand the importance of studying mathematics for everyday life.

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