Özet:

The purpose of this study is to question how often the selected types of models used in the ninth-grade physics textbook are used and whether these models contain scientific mistakes The study was conducted with document analysis. Mathematical models, maps/diagrams/tables and simulations in the Physics textbook of MoNE for the ninth-grade were examined. A form was created with the model images in the book and three experts were consulted. They were asked to write whether the models had mistakes, and if so, what the mistakes were. In addition, they were asked to determine the degree of mistake. The analysis of the data was made with the descriptive analysis. According to the results of the research, it was seen that it was generally distributed in a balanced way based on the topics included in the units and the length of the topics. The rate of models that all three experts describe as correct was 34.98%. Although there were mistakes in about 2/3 of the models, the degree of mistakes was different. In total, the mistake rate was 17.40%. The highest mistake rate was in the simulations (52.78%), and the lowest mistake rate was in the tables (9.62%). Mistakes in the models were classified as Scale/Proportion Mistakes, Missing/Incorrect Information, Wrong Impression Mistakes, Display Mistakes, and Other Mistakes. The most common mistake type was Missing/Incorrect Information, and the least one was Scale/Proportion Mistakes.

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