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Siddhi Desai; Farshid Safi – Mathematics Teacher: Learning and Teaching PK-12, 2023
A primary goal of ethnomodeling is to value, sustain, and in some instances introduce cultural practices and traditions that have often been lost or overshadowed because of an emphasis on modern methods (Orey & Rosa, 2010). Through an ethnomodeling task focusing on geometric transformations, the authors share a Model It! activity to engage…
Descriptors: Culturally Relevant Education, Mathematics Education, Mathematics Activities, Secondary School Mathematics
Timothy Scott Wegner – ProQuest LLC, 2022
Dynamic Geometry Environments (DGEs) are popular tools in the exploration of geometry. This research is designed to explore the confidence of undergraduate mathematics students as they make mathematical statements when completing geometric tasks using DGEs. Students completed two series of tasks in both Euclidean and hyperbolic geometry. The first…
Descriptors: Geometry, Mathematics Instruction, Educational Technology, Technology Uses in Education
Wares, Arsalan; Custer, David – Mathematics Teacher: Learning and Teaching PK-12, 2023
Generalizing, conjecturing, representing, justifying, and refuting are integral parts of algebraic thinking and mathematical thinking in general (Lannin et al., 2011). The activity described in this article makes a case for generalizing as an overall mindset for any introductory algebra or geometry class by illustrating how generalization problems…
Descriptors: Mathematical Logic, Geometry, Algebra, Spatial Ability
Armstrong, Addie; McQuillan, Dan – Mathematics Teacher: Learning and Teaching PK-12, 2020
Valid proofs need not be in the traditional two-column format. This classroom activity allows students to explore, discuss, and use specialized facts to create a general statement of truth.
Descriptors: Mathematics Instruction, Validity, Mathematical Logic, Mathematics Activities
Fahlgren, Maria; Brunström, Mats – Technology, Knowledge and Learning, 2014
The increasing availability of new technologies in schools provides new possibilities for the integration of technology in mathematics education. However, research has shown that there is a need for new kinds of task that utilize the affordances provided by new technology. Numerous studies have demonstrated that dynamic geometry environments…
Descriptors: Educational Technology, Technology Uses in Education, Teaching Methods, Geometry
Ferrara, Francesca; Ng, Oi-Lam – North American Chapter of the International Group for the Psychology of Mathematics Education, 2014
In this paper, we explore an approach to understanding how multimodality works in a community of practice. Using a social learning framework, we show how a community of practice, involving a pair of high school students, engaged in perceptual, bodily, and imaginary experiences while discussing about calculus concepts in a dynamic geometry…
Descriptors: Communities of Practice, High School Students, Calculus, Student Experience
Schneiter, Kady – Teaching Statistics: An International Journal for Teachers, 2011
This article describes an investigation of Buffon's coin problem and related problems with the aid of an applet. The problems are accessible at a variety of grade levels and facilitate making connections between geometry and probability.
Descriptors: Geometry, Probability, Statistics, Mathematical Concepts
Hancock, Karen – Mathematics Teaching Incorporating Micromath, 2007
In this article, the author presents a lesson on rotational symmetry which she developed for her students. The aim of the lesson was "to identify objects with rotational symmetry in the staff car park" and the success criteria were "pictures or sketches of at least six objects with different orders of rotation". After finding examples of…
Descriptors: Photography, Motor Vehicles, Geometry, Mathematics Activities
Harris, David – Micromath, 2000
Describes an experiment with two participants, one of which is familiar with the Geometer's Sketchpad but not with Cabri-Geometre and vice versa. Displays the work of both participants when they are given two geometry problems in secret and 20 minutes to work on each, the first with software that they are familiar with and the second using the…
Descriptors: Computer Software, Educational Technology, Geometry, Mathematics Activities

Shilgalis, Thomas W. – Mathematics Teacher, 1998
Presents two problems whose solutions can be enhanced using the Geometer's Sketchpad to solve the problems. Concludes that available computer technology can aid in the analysis and solution of some interesting geometry problems. (ASK)
Descriptors: Computer Software, Educational Technology, Geometry, Mathematics Activities

Abramovich, Sergei; Brown, Gary – Journal of Computers in Mathematics and Science Teaching, 1999
Shows how the joint use of a dynamic geometry program and a spreadsheet can provide a computational environment for exploring geometry on plane lattices that lessens the risk of developing the false empiricist view of mathematics often associated with the use of information technology. Contains 17 references. (Author/ASK)
Descriptors: Computer Uses in Education, Educational Technology, Elementary Secondary Education, Geometry

Granger, Tim – Teaching Children Mathematics, 2000
Describes a unit of study focusing on tessellations to show students another view of mathematics. (Author)
Descriptors: Art, Computers, Educational Technology, Elementary Education

Olmstead, Eugene A. – Mathematics Teacher, 1998
Presents an activity using dynamic-geometry system software to create an environment in which all students can explore and extend the locus definition of conics. (ASK)
Descriptors: Computer Software, Educational Technology, Geometric Concepts, Geometry

Helfgott, Michel; Simonsen, Linda M. – Mathematics and Computer Education, 1998
Presents an activity to investigate physico-mathematical concepts and provide mathematics arguments that are very close to a proof with the advent and availability of powerful technology. Demonstrates without using calculus how the law of reflection for parabolas is derived from Fermat's principle of least time. (ASK)
Descriptors: Educational Technology, Geometry, Graphing Calculators, Higher Education

Brown, Alan R. – Mathematics Teacher, 1999
Introduces a project in which students use dynamic geometry software with a TI-92 graphing calculator to study geometric constructions. Concludes that interactive technology can enhance the geometry curriculum and better meet the needs of visual and tactile learners than the traditional approach. (ASK)
Descriptors: Educational Technology, Geometry, Graphing Calculators, Mathematics Activities
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