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Article History

Received: 29 June 2017

Accepted: 29 January 2018

First Online: 15 March 2018

Competing interest

: We declare that we have read through the areas of competing interest, both financially and non-financially and declare that we do not have any competing interest. The data collected from this project has obtained the necessary clearance from the school and the students involved in the study.

: May Phua is a secondary school biology teacher who did her masters in education with Aik-Ling Tan. Aik-Ling Tan is a science education researcher with the National Institute of Education, Nanyang Technological University, Singapore.

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