Effect of problem solving learning models on self-confidence and student learning outcomes on topics of reduction-oxidation

Abstract

This study aims to determine the effect of using the Problem Solving learning model on Self-Confidence and student learning outcomes on the topic of reduction-oxidation. The research design used was Quasi-Experimental Design with Pretest-Posttest Control Group Design. The sample of this study amounted to 58 students, where 29 students in the experimental class and 29 students in the control class. In the experimental class, the Problem Solving learning model was applied while in the control class conventional learning models were applied. Data analysis for hypothesis testing using a separated variant t-test. The results of the data analysis showed that self-confidence at a significant level of 0.05 with dk = 56 was obtained tcount 2,284 > ttable 1,672, then H0 was rejected and H1 was accepted so that there was an effect of the problem-solving learning model on self-confidence. Results of data analysis Learning outcomes show that at a significant level of 0.05 with dk = 56 obtained tcount 7.519 > ttable 1.672.

How Does Problem-solving Method Affect Students’ Self-confidence and Mathematical Understanding?

“…This shows that students are confident in their abilities and they are confident that they can do the given questions well. [21]- [24] The syntax problem-solving of "defining the problem" affects the matter of conceptual understanding, in which Rafa notes that 60% of his classmates are women and he concludes that the ratio of women to men is 3 The syntax problem-solving of "planning a problem" affects the statement on the selfconfidence questionnaire that I can plan something without asking for help and consideration from friends. That means students are able to diagnose the problem themselves without the help of others.…”

“…This shows that by diagnosing problems students can take on their responsibilities and so as not to depend on others. [21]- [24] The syntax problem-solving of "planning a problem" affects the matter of conceptual understanding, in which in addition to Amir's house, there is a plot of land in the form of a long square. Amir's father plans to plant various types of medicines.…”

“…This shows the need for self-confidence. [21]- [24] The syntax problem-solving of "implementing strategy" affects the matter of understanding the concept, in which a contractor estimates that a bridge will be completed within 24 days if done by 30 workers. After the work went on for 10 days, the work was stopped for 4 days for some reason.…”

Analisis Miskonsepsi Materi Pereaksi Pembatas Menggunakan Tes Three Tier Multiple Choice

“…Konsep yang dibangun siswa harus mampu diterapkan untuk menyelesaikan berbagai masalah yang terkait, karena dalam pembelajaran kimia tidak hanya diharuskan paham mengenai konsep kimia, akan tetapi harus bisa menerapkan konsep yang dipahaminya untuk memecahkan masalah (Lukum, 2019). Tantangan efektifitas dan efisiensi pengelolaan pembelajaran kimia, sesungguhnya terletak pada bagaimana guru menyiapkan pembelajaran yang memungkinkan siswa menguasai konsep terkait dengan pengalaman belajar yang diperolehnya selama mengikuti proses pembelajaran (Laliyo, 2011).…”