A Model Approach to the Electrochemical Cell: An Inquiry Activity

Abstract

In an attempt to address some student misconceptions in electrochemistry, this guided-inquiry laboratory was devised to give students an opportunity to use a manipulative that simulates the particulate-level activity within an electrochemical cell, in addition to using an actual electrochemical cell. Students are led through a review of expected prior knowledge relating to oxidation and reduction half-reactions. Then, the students examine the macroscopic level by constructing and using an electrochemical cell. Finally, students use the manipulative and make connections between the two levels through class discussion. The misconceptions involve the movement of electrons and ions through solution and the salt bridge, the resulting charges of the half-cells, and the charge sign given to the anode and cathode on electrochemical and electrolytic cells. Additionally, the activity covers oxidation and reduction reactions in electrochemical cells and provides practice drawing and labeling parts of an electrochemical cell. Results, pre- and post-testing and student comments, indicate that this laboratory facilitates students’ understanding of electrochemical cells.

The Effectiveness of Process‐Oriented Guided Inquiry Learning to Reduce Alternative Conceptions in Secondary Chemistry

“…The effectiveness of POGIL in college classes is evident in the literature, but the effectiveness of POGIL in the secondary chemistry classrooms has not been thoroughly researched. Cullen and Pentecost () found that guided inquiry was an effective approach to teaching electrochemical cells to advanced placement high school chemistry students. POGIL materials are now available for use in high school chemistry, and workshops are offered in many locations to train high school teachers in POGIL pedagogy.…”

Perkembangan Model Mental Mahasiswa pada Penggunaan Bahan Ajar Kesetimbangan Kimia berbasis Inkuiri Terbimbing

“…Model mental yang tidak benar pada materi kesetimbangan kimia berakibat pada ketidakpahaman konsep-konsep kimia selanjut nya seperti Asam Basa, Larutan Penyangga, Hidrolisis Garam, Kelarutan dan Hasil Kali Kelarutan (Ksp), Sifat Koligatif Larutan, dan sebagainya (Bergquist & Heikkinen, 1990 (Supasorn & Promarak, 2015;The College Board, 2013;The College Board, 2012;Hunnicutt, Grushow, & Whitnell, 2015;Kuhlthau, Maniotes, & Caspari, 2007). Cullen dan Pentecost (Cullen & Pentecost, 2011) menyatakan bahwa pembelajaran inkuiri meng arahkan mahasiswa untuk memperbaiki penge tahuan sebelumnya kemudian diarahkan mene mukan konsep menggunakan model. Model merupakan representasi dari suatu konsep yang dapat berupa gambar, tabel, diagram, kurva, praktikum, dan lain-lain (Hanson, 2013).…”

Board and card games for studying electrochemistry: Preliminary research and early design

“…First-year undergraduate students of general chemistry class [17] Laboratory Kit A microelectrochemical cell for minimizing hazardous laboratory wastes…”