Anita Tiarasani, - (2020) PROFIL MODEL MENTAL SISWA PADA KONSEP DASAR LAJU REAKSI DENGAN MENGGUNAKAN TES DIAGNOSTIK MODEL MENTAL INTERVIEW ABOUT EVENT. S1 thesis, Universitas Pendidikan Indonesia.
Abstract
Tujuan penelitian ini adalah memperoleh profil model mental siswa pada konsep dasar laju
reaksi. Partisipan penelitian ini adalah tujuh orang siswa kelas XII IPA di salah satu SMA
Negeri di Kota Bandung dengan tiga kemampuan akademik yang berbeda, yaitu tinggi,
sedang, dan rendah. Metode yang digunakan adalah kualitatif dengan analisis deskriptif
menggunakan instrumen penelitian Tes Diagnostik Model Mental Inteview-About-Event
(IAE). Berdasarkan hasil penelitian ditemukan bahwa siswa kemampuan sedang dan rendah
menjawab benar sebagian setalah diberi pertanyaan probing dalam menjelaskan perubahan
laju rerata pengurangan reaktan dan laju rerata pembentukan produk, sedangkan siswa
kemampuan tinggi menjawab salah meskipun telah diberi pertanyaan probing. Siswa
kemampuan tinggi, sedang dan rendah mengalami miskonsepsi dalam menjelaskan laju
rerata pembentukan produk, bahwa laju rerata pembentukan produk meningkat karena
jumlah partikelnya meningkat. Selain itu, ditemukan miskonsepsi dalam menghitung laju
rerata, bahwa laju rerata diperoleh dengan cara membagi jumlah total laju reaksi setiap
waktu dengan jumlah data laju reaksi. Kemudian, siswa kemampuan tinggi, sedang dan
rendah tidak dapat menjawab apapun dalam menjelaskan laju sesaat meskipun sudah diberi
pertanyaan probing. Terakhir, siswa kemampuan tinggi dan sedang menjawab benar
dengan pertanyaan probing ketika membandingkan laju salah satu spesi untuk mencari
spesi lainnya, tetapi tidak ada yang menjawab benar dalam menghubungkan laju reaksi,
laju pengurangan reaktan, dan laju pembentukan produk.
The research aims to obtain student’s mental model profile on the concept of reaction rate.
The participants of this research were seven students of class XII IPA in a public senior
high school in Bandung city with three different academic abilities, namely high, medium,
and low. The method used is qualitative with descriptive analysis using the research
instrument Diagnostic Test Model Mental Interview-About-Event (IAE). Based on the
results of the research it was found that students with moderate and low ability answered
partially correct after being given probing questions in explaining changes the average rate
of disappearance of reactant and the average rate of formation of product , while high ability
students answered incorrectly even though they had been given a probing question.
Students with high, medium, and low abilities experience misconceptions in explaining the
average rate of formation of product, that the average rate of formation of product increases
as the number of particles increases. In addition, a misconception was found in calculating
the average rate, that the average rate is obtained by dividing the total number of reaction
rates at any time by the number of reaction rate data. Then, students of high, medium, and
low ability cannot answer anything in explaining the instantaneous rate even though they
have been given a probing question. Finally, high and moderate ability students answered
correctly with probing questions when comparing the rate of one species to look for other
species, but none of them answered correctly in relating the reaction rate, the average rate
of disappearance of reactant, and the average rate of formation of product.
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Item Type: | Thesis (S1) |
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Uncontrolled Keywords: | model mental, TDM IAE, konsep dasar laju reaksi mental model, interview about event, rate of reaction |
Subjects: | L Education > L Education (General) Q Science > QD Chemistry |
Divisions: | Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam > Program Studi Kimia - S1 > Program Studi Pendidikan Kimia |
Depositing User: | Anita Tiarasani |
Date Deposited: | 30 Sep 2020 05:57 |
Last Modified: | 30 Sep 2020 05:57 |
URI: | http://repository.upi.edu/id/eprint/55091 |
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