scholarly journals Development of Based Biology Modules Discovery Learning to Improve Critical Thinking of Class Xi High School Student’s

Author(s):  
Melani Tristiana ◽  

Critical thinking is one aspect of thinking skills that have to be developed in the 4.0 century. Critical thinking has an important role in the learning process. Students with high critical thinking skills will make a high contribution in increasing mastery of concepts. Therefore, an initial investigation was carried out by interviewing biology teachers and giving questions to students of class XI science at SMA 12 Negeri Padang. It is known that critical thinking in students is still low. One of the causes is an inadequate module. Therefore, students need appropriate modules to improve critical thinking. This type of research is development research using the Ploompdevelopment model. The model stage consists of the initial investigation, prototyping, and assessment. The research data were obtained from validity, practicality, and effectiveness tests. The results showed that the biology module that was developed according to the expert review obtained a value of 87.70% very valid category. The results of the practicality test by the teacher obtained a value of 93.97% in the very practical category and the results of the practicality test by the students obtained a score of 86.67% in the very practical category. The results of the effectiveness test of the critical thinking aspect in six categories showed a significant increase in students' critical thinking based on the N-Gain test carried out on the respiratory system. While the excretory system results in the N-Gain value of the experimental class 0.36 medium category and controls 0.30 medium categories

2017 ◽  
Vol 8 (2) ◽  
pp. 109-118
Author(s):  
Ida Wahyu Kurniati ◽  
Emi Pujiastuti ◽  
Ary Woro Kurniasih

Tujuan penelitian ini adalah mengetahui model pembelajaran discovery learning berbantuan smart sticker mampu meningkatkan disposisi matematik dan kemampuan berpikir kritis. Metode penelitian yang digunakan dalam penelitian ini adalah metode penelitian kuantitatif. Populasi dalam penelitian ini adalah siswa kelas VIII SMP Negeri 40 Semarang. Pengambilan sampel dilakukan dengan teknik cluster random sampling, diperoleh kelas VIII H sebagai kelas eksperimen dan kelas VIII E sebagai kelas kontrol. Analisis data yang digunakan adalah uji proporsi dan uji ketidaksamaan dua rata-rata. Hasil penelitian menunjukkan bahwa hasil tes kemampuan berpikir kritis siswa kelas eksperimen mencapai nilai lebih dari 65 dan lebih dari 70% siswa di kelas eksperimen mencapai nilai lebih dari 65. Kemampuan berpikir kritis dan disposisi matematik siswa kelas eksperimen lebih baik dari kelas kontrol dan dinyatakan meningkat dibandingkan hasil pretest. Berdasarkan hasil penelitian disimpulkan bahwa model pembelajaran Discovery Learning berbantuan Smart Sticker dapat meningkatkan disposisi matematik dan kemampuan berpikir kritis.The purpose of this study was to find out that discovery learning model which is assisted by smart sticker can improve mathematical disposition and critical thinking skills. The method used in this research is quantitative research methods. The population in this study is eighth-grade students of SMP Negeri 40 Semarang. Sampling was carried out by cluster random sampling technique, is obtained as an experimental class in eighth grade H and the eighth grade E as a control. Analysis of the data used is the proportion test, and test two average inequality. The result show that the test result of students critical thinking skills experiment class reached a value of more than 65 and more than 70% student in experimental class reached a value of more than 65. Critical thinking skills and mathematical disposition of experiment class better than control class and declared that increased if compared to the pretest. The final conclusion is that discovery learning model which is assisted by smart sticker can improve mathematical disposition and critical thinking skills.


Edupedia ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 17-27
Author(s):  
Dian Noer Asyari

Discovery learning is a learning situation on wich the principle content of what is tobe learned is not give but must be independly discovered by student. The effectiveness of guided discovery learning model to improve students’ critical thinking skills uses 6 indicators, are: formulating problems, formulating hypotheses, analyzing date, providing alternatives, summing up, communicating and applying principle. The guided discovery learning model was included in the effective category in terms of: (a) Improvement (N-gain) of students’ critical thinking skills by 0.65 with moderate criteria and (b) Students respond positively to learning using guided discovery learning model and its learning tools on implementation.


2021 ◽  
Vol 14 (1) ◽  
pp. 11-22
Author(s):  
Sania Salsabila ◽  
Abd. Kholiq

During the Covid-19 pandemic that swept the world including Indonesia, and to improve students' critical thinking skills, it is necessary to have supporting media in the learning process as an edutainment website. This study intends to determine the validity of the edutainment website developed in physics lessons to improve student's critical thinking skills. The research method used is development research with the DDD-E model. This research was only limited to media development, and no practicality and effectiveness tests were carried out. In this study, the validity data were obtained from the results of validation by expert and were analyzed by descriptive quantitative using the category of Likert scale percentage. If the percentage of each aspect is ≥ 61%, then the edutainment website developed can be declared valid. The results of this study are the percentage of validity in the learning aspect of 90.30%, the material aspect of 90.56%, the media aspect of 88.65%, and the critical thinking aspect of 84.70%. Based on this, it can be concluded that the edutainment website is very valid so that it can be used as a physics learning media to improve students' critical thinking skills. The edutainment website can be an alternative learning media by utilizing information technology and hopefully in further research, it can apply edutainment website and perform practicality and effectiveness tests for learning both in class and distance learning


2020 ◽  
Vol 4 (1) ◽  
pp. 83
Author(s):  
Anike Putri ◽  
Yenita Roza ◽  
Maimunah Maimunah

This research was motivated by the still limited learning of mathematics as a means of supporting learning in the 2013 Curriculum. The purpose of this study was to produce some products in the form of learning devices (syllabus, RPP and LKPD) on the material for the flat side building of VIII Middle School with discovery learning models that meet valid, practical, and effective criteria for improving students mathematical critical thinking skills. Learning tools are developed using the 4-D model, which are define, design, develop and assess. The research instrument used was an instrument of validity in the form of a validation sheet to assess the feasibility of the syllabus, RPP and LKPD as well as a practical instrument in the form of a teacher observation sheet activity in applying the discovery learning model and student questionnaire responses to assess the practicality of LKPD. The results of the validation of the experts stated that the product developed reached a valid category with an average rating of 76.67% for syllabus, 76.67% for RPP and 88.04% for LKPD. Learning devices are considered very practical in small group trials with an average response of 96.44% students and large group trials from the observation sheet of teacher activity 93.71% and the average response of students 87.77%. The learning tools have been proved to improve students mathematical critical thinking skills in terms of an average N-gain of 0.53 in the medium category.


2021 ◽  
Vol 6 (2) ◽  
pp. 253-264
Author(s):  
Amelia Lestari ◽  
Elsa Lisanti ◽  
Rizhal Hendi Ristanto

This study aimed to develop guided discovery learning-based android learning media to improve critical thinking skills. The developed biology learning media was applied to the nervous system material. The discussion of the physiology of the nervous system is one of the difficult biological materials to understand because it includes the organization and structure of neurons and their functions, ion pump mechanisms when neurons are at rest, action potential mechanisms, mechanisms for neurons to communicate with other cells in the synapses, and organization of the nervous system. This study used research and development (RD) with a method developed by Thiagarajan, namely the 4D model with stages: define, design, develop and disseminate. The stages of this study are limited to the development stage. The results showed that the media was feasible with media, language, and a material expert validation of   3.5, 3.8, and 3.3, respectively.


Author(s):  
Sri Rahayu

<p><em>This type of research is classroom action research. The purpose of this study was to improve critical thinking skills in science by applying the Discovery Learning model. The results showed that the application of the Discovery Learning model can improve critical thinking skills in science. The percentage of critical thinking skills in the very good, good, adequate, and poor categories. In pre-cycle it was 41%, cycle I was 68%, increased in cycle II to 86%, and increased again in cycle III was 95%.</em><em></em></p>


2018 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Novia Daniati ◽  
Dezi Handayani ◽  
Relsas Yogica ◽  
Heffi Alberida

Curriculum of 2013 requires students to be able to think critically. This critical thinking ability can be trained by using questions that have indicators of critical thinking, besides those questions must also have cognitive levels C4 (analyze), C5 (evaluate), and C6 (synthesize). Padang Public Middle School 2 has implemented 2013 Curriculum in learning, but students' critical thinking skills are unknown. This research is a descriptive research. The method used in this research is descriptive method. The subject of the study consisted of 48 students of class VII of SMP Negeri 2 Padang. The data obtained in this study was obtained through test techniques. The test used is a description test. The test instruments used will be validated and analyzed first. Analysis of this instrument includes the level of difficulty, differentiation and reliability. Test instruments were tested before being used. This study produces data that the level of critical thinking skills of seventh grade students in Padang State Middle School is still in non-critical qualifications with a percentage average value of 48.53%. Indicators with the highest average percentage to the lowest, namely; the inference indicator obtained a score of 69.96% with quite critical qualifications; the indicator gives a basic statement obtained a value of 60.62% with less critical qualifications; the indicator estimates that a value of 53.12% is obtained with non-critical qualifications; the indicator gives an advanced statement obtained a value of 44.39% with non-critical qualifications, and; basic indicators of decision making obtained a value of 14.58% with non-critical qualifications. Keywords: Critical Thinking, Environmental Pollution, Descriptif


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