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    Using data mining techniques to explore patterns of academic achievement effects for high school students
    (Altınbaş Üniversitesi, 2020) Kurnaz, Sefer; Ali, Karrar Hussein
    This research presents an applied study of the field of knowledge discovery of educational data using data mining techniques, focusing on the development of teaching and learning, by discovering the main patterns of testing the data of the academic student of the intermediate level (baccalaureate) in Baghdad - Iraq, from 2010 to 2019 to get results on the Academic Performance Index. In this study, we discover some major patterns data, Some of this patterns association exists between student changed summation and the student gain level for some subjects, also the relation between summation degrees with degree gained from some subject. This research attempts to read this result and interpretation, supply and verification level and its type to supply to the ministry decision-maker. We choose data mining technique because it’s better to use the benefit of quantity data; we use a different way from data mining technique to support discovery result clusters using (k-means) and classification use a decision tree, after first pre-processing data for database and restriction like logical data warehouse shape, we use k-means algorithm of clusters technique and (J48) algorithm of the classification technique of the decision tree, this different way and algorithms application through WEKA tool, which supports more algorithms and way of data mining Last deductive abstract and suggests some recommendation which interest for the decision-maker. Results from this research built a logical data warehouse & applying the algorithm of data mining’s algorithm, besides the difficulties of some subjects which may form its tough words or other disqualification planning.