A Study to Determine the Ability of Fifth-Grade Students in Reflecting Their Knowledge about Sun, Earth, and Moon by Different Measurement Tools von Gülen, Salih

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Effectiveness of Web-supported Videos on Students’ Academic Achievement, Critical Thinking Skills and Three-dimensional Learning von Gülen, Salih, Dönmez, İsmail

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Question Tree Technique in Science Education; Sample Application von Gülen, Salih, Yadigar, Tuğba

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Using volume of concept in the class environment von Gülen, Salih

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Perception of job security and professional self‐esteem of teachers: A mixed method research von Özmen, Kenan, Dönmez, İsmail, Gülen, Salih

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Trends, Opportunities, and Pipelining in Preschool STEM Education: A Scoping Review von DÖNMEZ, İsmail, GÜLEN, Salih

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Science Curricula and Science Teachers Training in Turkey: Past, Present and Future von DÖNMEZ, İsmail, GÜLEN, Salih

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Determination the effect of STEM integrated argumentation based science learning approach in solving daily life problems von Gülen, Salih

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The Effect of 'Volume of Concept' on the Level of Identifying Concepts and Understanding of Relationships between Concepts for 7th Grade Students von Gülen, Salih

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Determination of the effect of STEM-integrated argumentation based science learning approach in solving daily life problems von Gulen, Salih

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Assessment of Changes in Teacher Candidates’ Perceptions of the Concept of the Environment von DÖNMEZ, İsmail, GÜLEN, Salih

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Investigation of the Knowledge and Views of Seventh Graders on the Relationship between Space Research and Technological Developments von Gülen, Salih

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Comparison of Knowledge Levels of Meiosis and Mitosis Divisions in Seventh Graders with Mixed Methods von Gülen, Salih

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Attitudes of the parents towards the science lesson reliability-validity study von GÜLEN, Salih

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Use of Fun Book in Science Education: Sample Applications von Gulen, Salih, Yadigar, Tugba

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The effects of classic and web-designed conceptual change texts on the subject of water chemistry von Tas, Erol, Gülen, Salih, Öner, Zeynep, Özyürek, Cengiz

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The effect of STEM education roles on the solution of daily life problems von Gulen, Salih

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Determination of the Effect of the Planetarium Activities on the Students von Gülen, Salih

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The Effect of Electronic Portfolio Use on Pre-Service Elementary Teachers' Academic Achievement Levels and Self-Efficacy Beliefs Regarding the Teaching Process von Ayaz, Mahmut, Gök, Bilge, Gülen, Salih

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Impact of Argumentation-Based STEM Activities on Ongoing STEM Motivation von Dönmez, İsmail, Gülen, Salih, Ayaz, Mahmut

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