PRIMARY SCHOOL STUDENTS' ABSTRACTION LEVELS OF WHOLE-HALF-QUARTER CONCEPTS ACCORDING TO RBC THEORY

Whole-half-quarter are important mathematical concepts that form the basis of fractions and should be well understood for advancing mathematical topics. The aim of this study is to determine the primary school students' abstraction levels of whole-half-quarter concepts according to RBC theory. The participants of the study are six students (8 age group) from the second grade of primary school. The data of the research which is a case study were collected through worksheets and semi-structured interviews. The data obtained from interviews were analyzed by qualitative data analysis steps. The abstraction levels of students were evaluated according to RBC theory. As a result of the study, it was seen that many of the students could not abstract the whole, half and quarter concepts. It was determined that difficulties of students to abstract the whole-half-quarter concepts resulted from reasons such as not understanding the half and quarter concepts, not being able to divide the whole into two equal parts, not being able to divide one dimensional shapes into half and quarter, generalizing dividing into quarter as putting a "+", not being able to divide into four equal parts for quarter

The Associating Abilities of Pre-Service Teachers Science Education Program Acquisitions with Engineering According to STEM Education

The aim of this study is to determine the associating abilities of elementary education pre-service teachers science education program acquisitions with engineering using STEM education. In the study which is a case study, firstly pre-service teachers were trained about the STEM education approach. Then “Elementary School Science Education Program Acquisitions-STEM Activities Form” was applied asking the subjects to prepare activities associating elementary education science lessons acquisitions with engineering. After the application of the form, semi-structured interviews were conducted to ask pre-service teachers’ opinions about STEM education, using STEM in elementary education science lessons and the activities they had written in the form. An analysis of the data showed that pre-service teachers could easily associate elementary school science program acquisitions and the field of engineering. A variety of activities were given that could be conducted in the elementary education science lessons. Interviewed teachers gave positive feedback to the approach and stated that it is an educational approach that must be applied to lessons. Keywords: elementary education, pre-service teachers, STEM educatio