Innovation in Mathematics Education through Lesson Study: Challenges to STEM on Statistics and Electricity Saving

Riyanta Riyanta, Ika Wulandari


This collaborative research aims to provide necessary scientific and practical knowledge on statistics and electricity saving topics through integration of energy efficiency into vocational schools’ mathematics curriculum. The paper reports on how the teachers in a lesson study group developed teaching and learning models on statistics integrated with electricity saving. The implementation processes of this learning model started with data collection, continued with data processing, data presentation, and data analysis of the electricity billing payment of the students’ houses. Through this learning process, the students were expected to be more aware in saving electricity and using energy wiser. The analyses were done qualitatively using triangulation including combining documents, observations, photographs, and videos.
The findings revealed that this learning model sharpened the students’ ability around reasoning, processing, presenting and analyzing the data from contextual problems. Students could also define the factors affecting the electricity used, and then identify the ways to save energy. Further, the students created a simple video and poster for a saving electricity campaign at school, home, and social media. While the results are interesting and encouraging and provide some promising directions, they are not a proof and a much larger study would be needed to determine if the results are due to the approach or due to the teachers’ enthusiasm, novelty effect or what is known as the Hawthorne Effect.


thematic; contextual learning; innovation; STEM; school mathematics; research; lesson study

Full Text:



Afrial, & Rohmah, M. A. (2014). Using mathematics software and internet access for teaching in mathematics. Paper presented on the 3rd International Symposium on Mathematics Education Innovation Joint Conference with 19th ATCM, Sendimat, and 1st ISIMMED.

Ishii, S. (2016). Toward enhancing energy efficiency in the APEC region. Paper presented at the 10th APEC-Tsukuba International Conference: Innovation of Mathematics Education through Lesson Study Challenges to Energy Efficiency on STEM and Cross-Border Education. Tokyo: Natural Resources and Energy Research, International Affairs Division, Agency for Natural Resources and Energy, Ministry of Economy, Trade and Industry.

Kilpatrick, J., Swafford, J., & Findell, B. (2001). Adding it up: Helping children learn mathematics. Washington, DC: National Academy Press.

National Council of Teachers of Mathematics (NCTM). (2009). Focus in high schools mathematics: Reasoning and sense making. Reston, Va.: NCTM.

National Council of Teachers of Mathematics (NCTM). 2000. Principles and standards for schools mathematics. Reston, Va.: NCTM.

Wang, H., Moore, T., Roehrig, G., & Park, M. (2011). STEM integration: Teacher perceptions and practice. Journal of Pre-College Engineering Education Research, 1(2), 1-13.



  • There are currently no refbacks.

Indexed by:


Southeast Asian Mathematics Education Journal
SEAMEO Regional Centre for QITEP in Mathematics
Jl. Kaliurang Km 6, Sambisari, Condongcatur, Depok, Sleman
Yogyakarta, Indonesia
Telp. +62 274 889955

p-ISSN: 2089-4716 | e-ISSN: 2721-8546

Southeast Asian Mathematics Education Journal is licensed under a Creative Commons Attribution 4.0 International License

View My Stats

Supported by: