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Tétel Szabadon hozzáférhető A Cross-sectional Analysis of Students' Answers to a Realistic Word Problem from Grade 2 to 10(2019) Ambrus, Gabriella; Kovács, Zoltán; Szitányi, Judit; Csíkos, Csaba; Herendiné Kónya, EszterTétel Szabadon hozzáférhető How do secondary school students from the Kurdistan Region of Iraq understand the concept of function?(2022-02-04) Hussein, Yusuf Fakhraddin; Csíkos, CsabaThe study investigates secondary school students' understanding of the concept of function. The paper focuses on three main aspects: students' ability to define the concept of function; students' ability to recognize different representations of function; and students' ability to convert between different representations. A test was developed to assess the three main constructs of the study and administered to 342 students in secondary schools in the Kurdistan Region of Iraq. According to the results, students have diffculties in recognizing different representations of function and conversion between them. Connections between different parts of the test may provide hints on educational challenges of how to appropriately teach functions. Subject Classification: 26Bxx, 97D60Tétel Szabadon hozzáférhető Word problems in different textbooks at the early stage of teaching mathematics comparative analysis(2020-10-12) Szitányi, Judit; Biró, Fanni; Csíkos, CsabaIn a previous research, Csíkos and Szitányi (2019) studied teachers’ views and pedagogical content knowledge on the teaching of mathematical word problems. While doing so, they reviewed and compared Eastern European textbooks of Romania, Russia, Slovakia, Croatia, and Hungary to see how world problem-solving strategies are presented in commonly used textbooks. Their results suggested that teachers, in general, agreed with the approach of the textbooks regarding the explicit solution strategies and the types of word problems used for teaching problem-solving. They also revealed that the majority of the participants agreed that a word problem-solving algorithm should be introduced to the students as early as in the first school year. These results have been presented at the Varga 100 Conference in November 2019. As the findings suggested a remarkable similarity between the Eastern European textbook approaches, in the current study we decided to conduct further research involving more textbooks from China, Finland, and the United States. Subject Classification: 97U20, 08A50