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Mine Isiksal Bostan; Serife Sevinç; Magdalini Lada; Zbynek Kubácek – International Electronic Journal of Mathematics Education, 2025
In this cross-national study, we explore the different ways of reasoning-and-proving (RP) presented in three 8th grade textbooks, one from each country: Turkey, Norway, and Slovakia. While the analysis revealed that all three textbooks contain similar numbers of problems involving some form of RP, differences exist in terms of the dominating ways…
Descriptors: Textbooks, Textbook Content, Grade 8, Mathematics Instruction
Elizabeth Suazo-Flores; Lisa Roetker – Mathematics Teacher: Learning and Teaching PK-12, 2024
The Building Painted Cubes Task is a groupworthy algebraic task. Students build cubes using linking unit cubes, search for algebraic patterns, and report findings on posters. This task can create spaces for students to see themselves as doers of mathematics.
Descriptors: Algebra, Pattern Recognition, Mathematics Activities, Cooperative Learning
Ümran Okudan; Etem Yesilyurt – Asia-Pacific Education Researcher, 2024
Various independent variables affect or have a relationship with students' mathematics academic achievement theoretically, practically, and statistically. These variables include the learning needs of students, use of general teaching principles, and learning strategies. This study aims to examine the predictive level of learning needs, learning…
Descriptors: Mathematics Achievement, Student Needs, Learning Strategies, Grade 8
Hande Aytemiz; Zeynep Çakmak Gürel – Journal of Educational Research, 2023
Empirical studies demonstrate that students have some difficulties with the mathematical modeling process. Studies contain various applications for developing students' modeling competencies. This study investigated video-based modeling tasks' impact on modeling competencies with a descriptive design. In this context, it aims to compare…
Descriptors: Mathematical Models, Mathematics Instruction, Video Technology, Grade 8
Deni Dwi Putra; Aan Subhan Pamungkas; Hepsi Nindiasari; Maman Fathurrohman; Anne Porter – Journal of Research and Advances in Mathematics Education, 2024
This research aims to improve the numeracy abilities of secondary students after using the Labirin: the board game and students' perceptions of mathematics learning using the game. This empirical study research used a one-group pretest posttest design. The research population is all grade-8 students in one of the Islamic public secondary schools…
Descriptors: Game Based Learning, Grade 8, Numeracy, Mathematics Instruction
Lauren Pace – ProQuest LLC, 2024
The purpose of this quantitative, quasi-experimental, nonequivalent comparison-group design was to determine if "How to Learn Math: for Students" (Boaler, 2018) had a statistically significant influence on eighth-grade students' mathematical anxiety and mathematical achievement. Participants included eighth-grade students (n = 28) in a…
Descriptors: Mathematics Instruction, Mathematics Anxiety, Mathematics Achievement, Instructional Effectiveness
Alexandria A. Viegut; Ana C. Stephens; Percival G. Matthews – Grantee Submission, 2024
Researchers from multiple disciplines have found that fractions and algebra knowledge are linked. One major strand of research has identified children's "units coordination" structures as crucial for success with fractions and algebra via multiplicative reasoning, whereas a second strand of research points to "magnitude…
Descriptors: Fractions, Algebra, Mathematics Instruction, Grade 8
Alexandria A. Viegut; Ana C. Stephens; Percival G. Matthews – Investigations in Mathematics Learning, 2024
Researchers from multiple disciplines have found that fractions and algebra knowledge are linked. One major strand of research has identified children's "units coordination" structures as crucial for success with fractions and algebra via multiplicative reasoning, whereas a second strand of research points to "magnitude…
Descriptors: Fractions, Algebra, Mathematics Instruction, Grade 8
Pradina Parameswari; Purwanto; Sudirman; Susiswo – Mathematics Teaching Research Journal, 2024
Students' difficulties in differentiating the direct proportion and inverse proportion problems cause interference. Proactive interference is the error that occurs when old information (concept of direct proportion) interferes with new information (concept of inverse proportion). In solving the problem of inverse proportion, students often use the…
Descriptors: Problem Solving, Mathematical Concepts, Mathematics Instruction, Grade 8
Lóa Björk Jóelsdóttir; Paul Andrews – European Journal of Psychology of Education, 2024
In this paper, the multidigit arithmetic-related strategy adaptivity, strategy flexibility and solution accuracy of Danish compulsory school students is examined. Participants, 749 grade three, 731 grade six and 818 grade eight, were drawn from twenty demographically different schools. Drawing on a tri-phase assessment tool, each student completed…
Descriptors: Foreign Countries, Grade 3, Grade 6, Grade 8
Cangül Simsek Esen; Rezan Yilmaz – Online Submission, 2024
Similarity is a crucial concept introduced in the 8th grade, and it is further developed and reinforced through associations during high school. This research aims to investigate how 8th grade students construct the concept of similarity using concrete manipulative support within the framework of APOS theory. The research was conducted as a…
Descriptors: Concept Formation, Manipulative Materials, Grade 8, Proximity
Musarrat Habib; Amjad Islam Amjad; Sarfraz Aslam; Zahra Saleem; Atif Saleem – International Electronic Journal of Elementary Education, 2024
The current study was designed to examine the effect of metacognitive instruction strategies on the development of metacognition in grade 8 students and study variation in the development of metacognition in students with varying academic abilities. The study involved 80 grade 8 students from a public high school as a sample. A quasi-experimental…
Descriptors: Grade 8, Metacognition, Problem Solving, High School Students
High School Student Levels of Arithmetic Knowledge When Solving Additive Word Problems: ? Case Study
Camilo Andrés Rodríguez-Nieto; José David Cabarcas-Jiménez; Adriana Lucía Sarmiento-Reales; Benilda María Cantillo-Rudas; Jesús David Berrio-Valbuena; Sudirman Sudirman; Angela Castro Inostroza – International Electronic Journal of Mathematics Education, 2025
The level of arithmetic knowledge of a high school student was explored when solving additive word problems considering the semantic structure and syntactic component. The methodology was qualitative and developed in four stages: the first is the selection of the participant, the second is the design of a questionnaire with twenty additive…
Descriptors: Problem Solving, Arithmetic, Mathematics Instruction, Addition
Ingi Heinesen Højsted; Maria Alessandra Mariotti – International Journal of Mathematical Education in Science and Technology, 2024
This article reports on the design and implementation of a didactic sequence in the frame of a design-based research study. The research aim is to test the hypothesis that affordances of dynamic geometry may support students' awareness of logical relationships between geometrical properties of constructed figures. We elaborate on the task design…
Descriptors: Geometry, Mathematics Instruction, Logical Thinking, Teaching Methods
Destina Wahyu Winarti; Sitti Maesuri Patahuddin; Tom Lowrie – Educational Studies in Mathematics, 2024
This study assessed the effectiveness of a spatialized mathematics intervention on the mathematical performance and spatial visualization skills of students from an underprivileged Indonesian community. Grade 8 students (N = 407) were assigned to one of twelve experimental classes, receiving the spatial mathematics intervention, or one of seven…
Descriptors: Middle School Mathematics, Mathematics Instruction, Learning Processes, Visualization