The effect of the cluster umbrella strategy on the achievement of fourth-grade literary students in Islamic education and the development of their consensual thinking

This research aims to know the effect of the cluster umbrella strategy on achievement and development of harmonious thinking among fourth-grade literary students in Islamic education. Division (A) represents the experimental group that is taught according to the umbrella cluster strategy, and Division (B) represents the control group that is taught according to the usual method. The researcher has prepared a test to measure harmonic thinking and a test for dimensional achievement. The researcher used the following statistical methods: (t-test for two independent samples, t-test for two correlated samples, and Pearson correlation coefficient). After analyzing the results statistically, the researcher concluded that there are statistically significant differences at the level of significance (0.05) between the average scores of the students of the two research groups in the dimensional harmonic thinking test, in favor of the experimental group, and through the result reached by the researcher, a number of recommendations were presented, including and proposals.