International Electronic Journal of Mathematics Education

• Bálint, Ľ., Balúchová, A., Černek, P., Dovcová, J., Kabátová, E., Kolbaská, V., Kuzma, J., Reirterová, M., Ringlerová, V., & Žabka, J. (2010). Štátny vzdelávací program. Matematika. Príloha ISCED 2 [National education program. Mathematics. Annex ISCED 2]. Štátny Pedagogický Ustav.
• Bieda, K. N. (2010). Enacting proof-related tasks in middle school mathematics: Challenges and opportunities. Journal for Research in Mathematics Education, 41(4), 351-382. https://doi.org/10.5951/jresematheduc.41.4.0351
• Bieda, K. N., Ji, X., Drwencke, J., & Picard, A. (2014). Reasoning-and-proving opportunities in elementary mathematics textbooks. International Journal of Educational Research, 64, 71-80. https://doi.org/10.1016/j.ijer.2013.06.005
• Davis, J. D. (2012). An examination of reasoning and proof opportunities in three differently organized secondary mathematics textbook units. Mathematics Education Research Journal, 24, 467-491. https://doi.org/10.1007/s13394-012-0047-2
• Depaepe, F., De Corte, E., & Verschaffel, L. (2009). Analysis of the realistic nature of word problems in upper elementary mathematics education in flanders. In L. Verschaffel, B. Greer, W. Van Dooren, & S. Mukhopadhyay (Eds.), Words and worlds (pp. 245-263). Brill. https://doi.org/10.1163/9789087909383_016
• Erbas, A. K., Alacaci, C., & Bulut, M. (2012). A comparison of mathematics textbooks from Turkey, Singapore, and the United States of America. Educational Sciences: Theory and Practice, 12(3), 2324-2329.
• Fujita, T., & Jones, K. (2014). Reasoning-and-proving in geometry in school mathematics textbooks in Japan. International Journal of Educational Research, 64, 81-91. https://doi.org/10.1016/j.ijer.2013.09.014
• Harel, G., & Sowder, L. (2007). Toward comprehensive perspectives on the learning and teaching of proof. In F. Lester (Ed.), Second handbook of research on mathematics teaching and learning (pp. 805-842). National Council of Teachers of Mathematics.
• Healy, L., & Hoyles, C. (2000). A study of proof conceptions in algebra. Journal for Research in Mathematics Education, 31(4), 396-428. https://doi.org/10.2307/749651
• Hiebert, J., Gallimore, R., Garnier, H., Givvin, K. B., Hollingsworth, H., Jacobs, J., Chui, A. M., Wearne, D., Smith, M., Kersting, N., Manaster, A., Tseng, E., Etterbeek, W., Manaster, C., Gonzales, P., & Stigler, J. (2003). Teaching mathematics in seven countries: Results from the TIMSS 1999 video study. National Centre for Education Statistics. https://doi.org/10.1037/e610352011-003
• Johansson, M. (2006). Textbooks as instruments: Three teachers’ ways to organize their mathematics lessons. Nordic Studies in Mathematics Education, 11(3), 5-30. https://doi.org/10.7146/nomad.v11i3.147990
• Knuth, E. J., Choppin, J. M., & Bieda, K. N. (2009). Proof: Examples and beyond. Mathematics Teaching in the Middle School, 15(4), 206-211. https://doi.org/10.5951/MTMS.15.4.0206
• Kollosche, D. (2021). Styles of reasoning for mathematics education. Educational Studies in Mathematics, 107(3), 471-486. https://doi.org/10.1007/s10649-021-10046-z
• Mayer, R. E., Sims, V., & Tajika, H. (1995). Brief note: A comparison of how textbooks teach mathematical problem solving in Japan and the United States. American Educational Research Journal, 32(2), 443-460. https://doi.org/10.3102/00028312032002443
• Miles, M. B., Huberman, A. M., & Saldaña, J. (2014). Qualitative data analysis: A methods sourcebook (3rd ed.). SAGE.
• MoNE. (2018). Elementary and middle school mathematics program: Grades 1, 2, 3, 4, 5, 6, 7, and 8. Ministry of National Education.
• MoNE. (2021). MEB yayınları ortaokul ve imam hatip ortaokulu 8. sınıf matematik ders kitabı [MoNE publications middle school and imam hatip middle school 8^th grade mathematics textbook]. Ministry of National Education.
• Mullis, I. V., Martin, M. O., Foy, P., & Arora, A. (2012). TIMSS 2011 international results in mathematics. International Association for the Evaluation of Educational Achievement.
• Oates, T. (2014). Why textbooks count. Cambridge Assessments. https://www.cambridgeassessment.org.uk/Images/181744-why-textbooks-count-tim-oates.pdf
• Sears, R., & Chávez, O. (2014). Opportunities to engage with proof: The nature of proof tasks in two geometry textbooks and its influence on enacted lessons. ZDM Mathematics Education, 46(5), 767-780. https://doi.org/10.1007/s11858-014-0596-9
• Šedivý, O., Čeretková, S., Malperová , M., & Bálint, Ľ. (2007). Matematika pre 8. ročník základných škôl. 1. časť (4th ed.) [Mathematics for 8^th grade elementary schools. Part 1 (4th ed.)]. Slovenské Pedagogické Nakladateľstvo.
• Šedivý, O., Čeretková, S., Malperová, M., & Bálint, Ľ. (2008). Matematika pre 8. ročník základných škôl. 2. časť (5th ed.) [Mathematics for 8^th grade elementary schools. Part 2 (5th ed.)]. Slovenské Pedagogické Nakladateľstvo.
• Sevinc, S., Kohanová, I., Isiksal-Bostan, M., Kubáček, Z., Isler-Baykal, I., Lada, M., Cakiroglu, E., & Di Paola, B. (2022). Developing an integrated framework for analyzing ways of reasoning in mathematics. In Proceedings of the ICERI2022 (pp. 2082-2089). https://doi.org/10.21125/iceri.2022.0529
• Siegler, R. S., & Oppenzato, C. O. (2021). Missing input: How imbalanced distributions of textbook problems affect mathematics learning. Child Development Perspectives, 15(2), 76-82. https://doi.org/10.1111/cdep.12402
• Sievert, H., van den Ham, A. K., & Heinze, A. (2021a). Are first grades’ arithmetic skills related to the quality of mathematics textbooks? A study on students’ use of arithmetic principles. Learning and Instruction, 71, Article 101401. https://doi.org/10.1016/j.learninstruc.2020.101401
• Sievert, H., van den Ham, A. K., & Heinze, A. (2021b). The role of textbook quality in first graders’ ability to solve quantitative comparisons: A multilevel analysis. ZDM Mathematics Education, 53(6), 1417-1431. https://doi.org/10.1007/s11858-021-01266-x
• Stacey, K., & Vincent, J. (2009). Modes of reasoning in explanations in Australian eighth-grade mathematics textbooks. Educational Studies in Mathematics, 72(3), 271-288. https://doi.org/10.1007/s10649-009-9193-1
• Stylianides, G. J. (2009). Reasoning-and-proving in school mathematics textbooks. Mathematical Thinking and Learning, 11(4), 258-288. https://doi.org/10.1080/10986060903253954
• Tarr, J. E., Chávez, Ó., Reys, R. E., & Reys, B. J. (2006). From the written to the enacted curricula: The intermediary role of middle school mathematics teachers in shaping students’ opportunity to learn. School Science and Mathematics, 106(4), 191-201. https://doi.org/10.1111/j.1949-8594.2006.tb18075.x
• Tofteberg, G., N., Tangen, J., Bråthe, I., S., Stedøy, I., & Alseth, B. (2020). Maximum 8. Gyldendal.
• Törnroos, J. (2005). Mathematics textbooks, opportunity to learn and student achievement. Studies in Educational Evaluation, 31(4), 315-327. https://doi.org/10.1016/j.stueduc.2005.11.005
• Utdanningsdirektoratet. (2019). Curriculum for mathematics year 1-10. https://data.udir.no/kl06/v201906/laereplaner-lk20/MAT01-05.pdf?lang=eng
• Valenta, A., & Enge, O. (2020). Bevisrelaterte kompetanser i læreplanen LK20 for matematikk i grunnskolen [Proof-related competencies in the LK20 curriculum for mathematics in primary school]. Acta Didactica Norden, 14(3), Article 18. https://doi.org/10.5617/adno.8195
• VERBI Software. (2021). VERBI software. MAXQDA. https://www.maxqda.com/about
• Vicente, S., Sanchez, R., & Verschaffel, L. (2020). Word problem solving approaches in mathematics textbooks: A comparison between Singapore and Spain. European Journal of Psychology of Education, 35, 567-587. https://doi.org/10.1007/s10212-019-00447-3
• Vicente, S., Verschaffel, L., Sánchez, R., & Múñez, D. (2022). Arithmetic word problem solving. Analysis of Singaporean and Spanish textbooks. Educational Studies in Mathematics, 111(3), 375-397. https://doi.org/10.1007/s10649-022-10169-x
• Xin, Y. P. (2007). Word problem solving tasks in textbooks and their relation to student performance. The Journal of Educational Research, 100(6), 347-360. https://doi.org/10.3200/JOER.100.6.347-360

APA

Işıksal Bostan, M., Sevinç, Ş., Lada, M., & Kubáček, Z. (2025). The nature of reasoning-and-proving items in textbooks: The cases of Türkiye, Norway, and Slovakia. International Electronic Journal of Mathematics Education, 20(3), em0829. https://doi.org/10.29333/iejme/16185

Vancouver

Işıksal Bostan M, Sevinç Ş, Lada M, Kubáček Z. The nature of reasoning-and-proving items in textbooks: The cases of Türkiye, Norway, and Slovakia. INT ELECT J MATH ED. 2025;20(3):em0829. https://doi.org/10.29333/iejme/16185

AMA

Işıksal Bostan M, Sevinç Ş, Lada M, Kubáček Z. The nature of reasoning-and-proving items in textbooks: The cases of Türkiye, Norway, and Slovakia. INT ELECT J MATH ED. 2025;20(3), em0829. https://doi.org/10.29333/iejme/16185

Chicago

Işıksal Bostan, Mine, Şerife Sevinç, Magdalini Lada, and Zbyněk Kubáček. "The nature of reasoning-and-proving items in textbooks: The cases of Türkiye, Norway, and Slovakia". International Electronic Journal of Mathematics Education 2025 20 no. 3 (2025): em0829. https://doi.org/10.29333/iejme/16185

Harvard

Işıksal Bostan, M., Sevinç, Ş., Lada, M., and Kubáček, Z. (2025). The nature of reasoning-and-proving items in textbooks: The cases of Türkiye, Norway, and Slovakia. International Electronic Journal of Mathematics Education, 20(3), em0829. https://doi.org/10.29333/iejme/16185

MLA

Işıksal Bostan, Mine et al. "The nature of reasoning-and-proving items in textbooks: The cases of Türkiye, Norway, and Slovakia". International Electronic Journal of Mathematics Education, vol. 20, no. 3, 2025, em0829. https://doi.org/10.29333/iejme/16185