Misconception Identification with Two-Tier Test and POE Strategy to Improve Mass Balance Conceptual Comprehension in Industrial Chemical Major of Vocational High School

Ragil Sugeng Dewantoro, S. Subandi, F. Fajaroh
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引用次数: 2

Abstract

Abstract : This study used descriptive research and pre-experimental design. The first one was used to identify student misconception in the mass balance topic at macroscopic, sub-microscopic and symbolic levels. The second design aims to correct the misconceptions discovered by using the POE strategy. After three weeks the delayed test was done to find out the concept improvement using POE strategy. This design was also used to determine the effectiveness of POE strategies to achieve the aims. The results showed misconception on mass balance material with an average of 32.97%. The average POE effectiveness of 76.02% with high effectiveness criteria and retention of understanding with POE strategy after 2 weeks on average was 91.27% with very good criteria. Key Words : misconception, mass balance, POE, industrial chemistry, two-tier test Abstrak : Penelitian deskriptif dan pra eksperimen bertujuan untuk mengidentifikasi miskonsepsi siswa dalam neraca massa pada tingkat makroskopik, sub-mikroskopik dan simbolik. Sedangkan rancangan pra eksperimental bertujuan untuk memperbaiki miskonsepsi yang ditemukan dengan menggunakan strategi POE. Rancangan pra-eksperimental juga digunakan untuk mengetahui keefektifan strategi POE dalam memperbaiki miskonsepsi siswa pada materi neraca massa. Setelah tiga minggu dilakukan delayed test untuk mengetahui perbaikan konsep dengan strategi POE. Rancangan pra-eksperimental (pre-experimental) yang digunakan adalah modifikasi model one group pretest-posttest design dengan satu macam perlakuan. Hasil penelitian menunjukkan terjadi miskonsepsi pada materi neraca massa dengan rata-rata 32.97%. Selain itu didapatkan efektifitas POE rata-rata 76.02% dengan kriteria efektivitas tinggi dan retensi hasil remidi dengan strategi POE setelah 2 minggu rata-rata adalah 91.27% dengan kriteria sangat baik. Kata kunci : miskonsepsi, neraca massa, POE, kimia industri, test two tier
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用两层测试识别误区及POE策略提高中职工业化学专业学生对质量平衡概念的理解
摘要:本研究采用描述性研究和实验前设计。第一个用于从宏观、亚微观和象征层面识别学生对质量平衡主题的误解。第二个设计旨在纠正使用POE策略发现的误解。三周后,进行了延迟测试,以找出使用POE策略的概念改进。该设计还用于确定POE策略实现目标的有效性。结果显示,对质量平衡材料的误解平均为32.97%。采用高效标准的平均POE有效性为76.02%,采用POE策略2周后的理解保留率平均为91.27%,采用非常好的标准。关键词:误解、质量平衡、POE、工业化学、双层测试而实验前的设计旨在纠正使用POE策略发现的误解。实验前计划也被用来确定POE策略在改善学生对大量地狱物质的误解方面的有效性。三周后,进行了一次延迟测试,以找出POE策略在概念上的改进。所用的预试验设计是一组经过一种处理的前测后测设计修改。研究表明,对大量地狱物质的误解平均为32.97%。此外,POE的平均疗效为76.02%,符合高疗效标准,POE策略在2周后的缓解效果保持率平均为91.27%,符合非常好的标准。关键词:误解,neraca mass,POE,工业化学,二级测试
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