Can you make a cricket sing during the day?
By Dr. Ari Widodo, Universitas Pendidikan Indonesia
Having competencies in Science, Technology, Engineering and Mathematics (STEM) should give a huge benefit to our children. Yet, teaching for such competencies is more often a challenging task for the teacher. The curriculum has prescribed what to teach and for how long, which makes it difficult to insert new programs into the curriculum. The weather sensors introduced by the project were very interesting but teachers need training on how to use and how to apply them in the lessons.
A series of workshops were conducted to support the teachers before they could use the sensors in the classroom. The workshops covered an explanation of the technical issues of the sensors and how they work, identification of possible topics for lessons which could make use of the sensors, and preparation for the lessons.
One of the topics in science considered as appropriate to use the sensors was a topic on the relationship between biotic and abiotic factors. Traditionally, students were simply told about examples of biotic and abiotic factors and how they influenced each other.
During the workshop, it was identified that students generally love crickets. They usually sing at night, though some may sing during the day. Trying to make use the available weather sensors, it was decided to run a lesson that challenges students to make a cricket sing during the day. The process of designing, making and testing a cricket cage were designed to give the students rich experiences that will facilitate their STEM competencies. The teaching strategy also facilitated students’ creativity.
As the challenge was presented to students in the classroom, the students came up with different ideas. One group of students made a cage using a black cardboard as they thought dark cardboard should make the cage dark. The second group put ice cube in the cage to make the cage cooler because they thought the temperature at night is cooler. The third group made flashes of light using their mobile phone to simulate night with flashes of thunderstorm. The fourth group played recorded singing cricket to stimulate their cricket to sing. The ideas proposed by the students to make their crickets sings were very creative.
One teacher who implemented the activity in class had this observation:
“Saat menguji alat justeru jadi nambah ide dari siswa. Misalnya asalnya tidak ada menggunakan HP, jadi memakai HP untuk untuk mencari suara jangkrik. Jadi dengan kegiatan ini kreativitas siswa meningkat”
[During the process of testing the equipment some students came up with new ideas. For example, initially there was no experiment making use of mobile phones, but in the process students made use of their mobile phone to make the crickets sing. So, the activity promoted students’ creativity.]
Another teacher observed that students were actively involved in the lessons as they could explore and test their ideas:
“Aktivitas meningkat karena siswa mencari segala cara agar jangkrik bunyi. Jadi minds nya on, hands juga on ngutak-atik dus dan benda lainnya seperti HP untuk merangsang jangkrik bunyi.”
[Students’ engagement significantly increased as they explored different ways to make the cricket sing. So, their minds were engaged, and there were also hands-on processes as they modified the cage and tried different objects to make their cricket sing, such as using their mobile phone.]
There was little doubt that the students enjoyed the lessons immensely. There were also plenty of opportunities for the students to practice their creativity.
On the other hand, the time spent for the “extra” lessons was longer than the typical methods used, as observed by another teacher:
“Waktu 2 x 40 menit untuk merangkai alat cukup. Untuk uji alat juga cukup. Hanya ada penambahan pertemuan dari metode biasanya. Untuk materi adaptasi ini nambah dua kali pertemuan.”
[The time allocation 2 x 40 minutes was enough to set up the equipment and to test them. Additional lesson time was needed compared to the usual teaching methods. For this topic on adaptation, two additional meetings were needed.]
Analysis of students’ responses collected using a set of questionnaire designed to measure students’ perception of their creativity and their relative position compared to their peer suggests that students perceived themselves as fairly creative (3.50/5) but they tend to be less confident as they perceived that they were less creative compared to their peers (3.39/5). This suggests that most students do not have confidence in their own competencies.
Involvement in the project facilitates the teacher professional development not only in terms of learning the appropriate strategy to integrate new content into the existing curriculum but also builds teacher’s confidence in using new methods in teaching. One teacher said:
“Dengan banyak kegiatan seperti ini menambah referensi saya dalam menyusun LKS, metode yang bisa melibatkan kreativitas siswa juga merangsang tingkat berpikirnya agar lebih luas dan lebih tinggi.”
[Activities like this improved my teaching references, such as how to develop student worksheet and teaching methods that promote students creativity and thinking skills, especially higher order thinking skills.]
Adopting a technology in education, especially in contexts different from the original settings, requires modification of the technology, improvement of teacher’s competencies, and adjustment of the curriculum.
For more information about this research project, Micro-climate studies in a STEM-based curriculum using open-source hardware and software, click here.