Sekolah Tunas Bangsa

Sustainable Energy

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Sustainable Energy

By: Yuyun Tri Yuniarti and Saulus (Grade 4 classroom teachers)

Grade Four students of Sekolah Tunas Bangsa learned transdisciplinary theme of how the world works. The central idea was energy may be converted from one form to another and stored in various ways. Through the key concepts of form, change and responsibility, the students learned that energy comes in different forms, cannot be created or destroyed. They explored that transformation of energy occurs in our daily life. Furthermore, they explored about the renewable sources of energy. It led them to understand that conserving energy needs to be done in order to have enough sources of energy in the future for us. As the result of learning, they took action to take responsibility in conserving the energy.

Through the pre-assessment task on drawing anything related to energy, the students drew something that needed energy to work whether it was a tool or an activity. In their formative assessment, they were asked to draw pictures which represented certain form of energy. They also identified things/equipments around them that showed the energy transformation. For their summative assessment, in pairs, they were asked to construct a model/toy by using everyday materials, such as plastic bottle and cup, straw, cardboard box, etc.. Through that model/toy they were expected to be able to explain what energy form was needed so that it can work properly and what energy transformation occurred on their model/toy. They also needed to be innovatie and creative in designing their tools. The students were so engaged because they chose to design something based on their interests.



Water, the Precious Resource

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Primary three students of Sekolah Tunas Bangsa were learning a unit of inquiry under the transdisciplinary theme of Sharing The Planet. The central idea is: Our planet has limited resources that are unevenly distributed. Water is one of the resources that the earth has. It is very important for the living organisms like humans, animals and plants. We can’t live without water. The amount of water in the earth remains the same because of the water cycle. Unfortunately, some areas on earth do not have enough water because it is unevenly distributed or because of human activities. This is the enduring understanding that the students need to learn in this unit of inquiry.

To get the prior knowledge of the students, they need to answer the teacher’s question: How does water get into the water tap? On a piece of paper, the students drew what they think they know about how water can get into the water tap. They came up with different ideas during class disussion. To find out how it really happens, the students and teachers agreed to have a field trip to the Water Supply Plant (PDAM) of Pontianak city. There, the students observed the process of water purification from the Kapuas river to become the clean water that is ready to be distributed to the citizens. They were very excited to find out the processes by observing the phases and by asking questions to the officers there. Once again, when they returned to school, they were asked to draw the process of water purification and distribution on a piece of paper. They also wrote a report based on their observation and presented it in front of the class.

Using ‘Before and After’ strategy, the teachers asked the students to write what they think they know and what they know now about how water can get into the water tap. The students now realize that water is really precious that they need to use it efficiently.

Writtten by: Ronald S. Tua (

Sekolah Tunas Bangsa, Kubu Raya (Pontianak), West Kalimantan