![]() ![]() ![]() ![]() Perkembangan ditandai dengan mulai berfungsinya alat-alat perkembangbiakan. Pertumbuhan pada tumbuhan tidak terbatas pada usia asalkan kebutuhannya terpenuhi, sedangkan pada hewan dan manusia pertumbuhan bersifat terbatas karena pada usia dewasa pertumbuhan hewan dan manusia akan berhenti.Īdapun perkembangan merupakan proses perubahan bentuk menuju kedewasaan pada makhluk hidup. Pertumbuhan dipengaruhi oleh faktor internal dan faktor eksternal. Contoh terjadinya pertumbuhan adalah bertambahnya tinggi batang dan jumlah daun. Pertumbuhan bersifat irreversible (tidak dapat balik). Definisi Pertumbuhan dan Perkembangan Makhluk Hidup Pertumbuhan dapat diartikan'sebagai proses bertambahnya ukuran (seperti volume, massa, dan tinggi) pada makhluk hidup. The inferential statistical analysis results show that the probability value of students critical thinking skills of 0.00 is smaller than 0.05 so that it can be concluded that there was a significant effect of implementation JiRQA learning model on students' critical thinking skills.A. The results of the descriptive statistical analysis show that there was an increase in the mean value of pretest and post test critical thinking skills of the experimental class by 45.28% and the control class by 33.11%. Data were analyzed using descriptive statistical analysis to determine mean and inferential analysis using the t-test. The instrument for measuring critical thinking skills using essay questions as many as 6 items. The approach was quantitative in the form of quasi-experiment research. This research aims to determine the effect of the jigsaw, reading, questioning, answering (JiRQA)type cooperative learning model on students critical thinking skills of SMP Negeri 2 Sekadau Hilir. ![]() The critical thinking skills of students in SMP Negeri 2 Sekadau Hilir were still low. ![]()
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