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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
Cathery Yeh; Lauren Rigby; Suzanne Huerta; Claire Engelhard – Mathematics Teacher: Learning and Teaching PK-12, 2024
Nationally, there is a rise in students with multidimensional identities--as newcomers, emergent bilinguals, students of color, and/or those with disabled and neurodiverse identities--in schools who are disproportionately represented in intervention programs and lower-tracked mathematics pathways. This article leverages the incredible power that…
Descriptors: Access to Education, Guidelines, Bilingualism, Inclusion
Koellner, Karen; Seago, Nanette; Jacobs, Jennifer – Teacher Educator, 2023
This research study explored teachers' self-reported uptake as well as observed instructional change after participating in a year-long professional development (PD) program focused on supporting the learning and teaching of transformations-based geometry. Analyses illuminate the degree and nature of the pedagogical shifts made by teachers who…
Descriptors: Faculty Development, Geometry, Mathematics Instruction, Video Technology
Schwarts, Gil; Karsenty, Ronnie – Journal of Mathematics Teacher Education, 2020
This paper reports on a study conducted within VIDEO-LM (Viewing, Investigating and Discussing Environments of Learning Mathematics), a video-based professional development project for secondary mathematics teachers that aims to enhance reflection on practice. The study explored VIDEO-LM sessions where Israeli teachers watched an 8th grade…
Descriptors: Mathematics Teachers, Teacher Attitudes, Video Technology, Teaching Methods
Genc, Murat; Ergan, Semra – Acta Didactica Napocensia, 2022
This paper aims to discuss the use of Brousseau's Theory of Didactical Situations in mathematics (TDS) for eighth-graders to explore the concept of triangle inequality in Euclidean geometry. Data sources included observation notes, video recordings of lessons, and students' written work. Data analysis was done through a deductive content analysis…
Descriptors: Geometry, Mathematics Instruction, Video Technology, Grade 8
Fitri, Nur Lailatul; Prahmana, Rully Charitas Indra – Journal of Research and Advances in Mathematics Education, 2020
Ferris wheel is one amusement playground that resembles a giant spinning wheel. Many students are familiar with the Ferris wheel in the mini version of it at night market festivals. This is the potential for learning mathematics. Furthermore, there is a mathematical learning approach called Indonesian Realistic Mathematics Education (IRME) where…
Descriptors: Learning Processes, Mathematics Instruction, Teaching Methods, Grade 8
Castrillon-Velandia, Oscar; Hemandez-Rodriguez, Omar – International Journal for Technology in Mathematics Education, 2019
This study focuses on how the combined use of graphic calculators with connectivity software promotes the social construction of mathematical knowledge. Particular emphasis is placed on the aspects related to design, development, implementation, and evaluation of didactic activities that integrate these technologies. We use Didactical Engineering…
Descriptors: Mathematics Instruction, Graphing Calculators, Teaching Methods, Computer Software
Jagals, Divan; van der Walt, Marthie – Pythagoras, 2018
Awareness of one's own strengths and weaknesses during visualisation is often initiated by the imagination -- the faculty for intuitively visualising and modelling an object. Towards exploring the role of metacognitive awareness and imagination in facilitating visualisation in solving a mathematics task, four secondary schools in the North West…
Descriptors: Visualization, Metacognition, Imagination, Role
O'Dell, Jenna R.; Rupnow, Theodore J.; Cullen, Craig J.; Barrett, Jeffrey E.; Clements, Douglas H.; Sarama, Julie; Van Dine, Douglas W. – North American Chapter of the International Group for the Psychology of Mathematics Education, 2016
In this study we investigated eighth grade students' informal justification for the circle area formula to expand accounts of the measurement knowledge for middle-school age students. Data were collected during three paired interviews of a three-year teaching experiment. Here we describe schemes students exhibited as they operated on measurement…
Descriptors: Grade 8, Measurement, Knowledge Level, Middle School Students
Holm, Jennifer, Ed.; Megroureche, Charlotte, Ed. – Canadian Mathematics Education Study Group, 2022
With COVID-19 continuing to make meeting face-to-face impossible, the Canadian Mathematics Education Study Group/Groupe Canadien d'Étude en Didactique des Mathématiques (CMESG/GCEDM) executive decided that, for the first time, the CMESG/GCEDM meeting would be held virtually. By necessity, the program had to be much compressed with no topic…
Descriptors: Mathematics Education, Foreign Countries, COVID-19, Pandemics
Hsu, Hui-Yu; Silver, Edward A. – Journal for Research in Mathematics Education, 2014
We examined geometric calculation with number tasks used within a unit of geometry instruction in a Taiwanese classroom, identifying the source of each task used in classroom instruction and analyzing the cognitive complexity of each task with respect to 2 distinct features: diagram complexity and problem-solving complexity. We found that…
Descriptors: Foreign Countries, Mathematics Instruction, Geometry, Teaching Methods
Lynch, Collin F., Ed.; Merceron, Agathe, Ed.; Desmarais, Michel, Ed.; Nkambou, Roger, Ed. – International Educational Data Mining Society, 2019
The 12th iteration of the International Conference on Educational Data Mining (EDM 2019) is organized under the auspices of the International Educational Data Mining Society in Montreal, Canada. The theme of this year's conference is EDM in Open-Ended Domains. As EDM has matured it has increasingly been applied to open-ended and ill-defined tasks…
Descriptors: Data Collection, Data Analysis, Information Retrieval, Content Analysis