The paper gives a method of learning programming the bubble and selection sorting algorithms through developing interactive applications in Excel and coding the just acquired step of the solution in Delphi Pascal. The method was tried in nine 90 minute lessons with 83 participants, which were gymnasium students, undergraduate, master and PhD students of Teaching Informatics, and university Informatics teachers. The participants were given questionnaires to find out their opinion on the method. The results are discussed.

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