Results 81 to 90 of about 160,573 (296)

Abstraction level of van Hiele’s theory: Occurrence of side effects in GeoGebra integration

open access: yesJurnal Elemen
One of the obstacles to teaching geometric transformation is the complex procedures that require a broad base of prerequisite knowledge. This complexity often leads students to focus on rote memorization and procedural calculations instead of ...
Thesa Kandaga   +2 more
doaj   +1 more source

STUDIES ON THINKING PROCESS IN GEOMETRICAL PROBLEM SOLVING: IV

open access: yesThe Japanese journal of psychology, 1961
Five experiments were conducted to study the thinking process in geometrical problem-solving using single problem. Exp. I was for the effect of problem conditions in thinking process, Exp. II for the effect of positive conditions which accelerate the problem-solving and negative conditions which disturb it, as the supplement of Exp. I, Exp. III for the
openaire   +5 more sources

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

open access: yesAdvanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller   +6 more
wiley   +1 more source

Instructional-based learning of cyclic quadrilateral theorems: Making geometric thinking visible and enhancing learners’ spatial and geometry cognitions

open access: yesPythagoras
Geometry learning has a long history with the connection to human cognitive development. The ability to mentally or physically orient 2D shapes or 3D objects in space is believed to support achievement in science, technology, engineering, and mathematics
Rajendran Govender, Godfred Amevor
doaj   +1 more source

Linking geometry and algebra with GeoGebra

open access: yes, 2006
GeoGebra is a software package and is so named because it combines geometry and algebra as equal mathematical partners in its representations. At one level, GeoGebra can be as a dynamic geometry system like other, commercially available, software.
Edwards, Julie-Ann, Jones, Keith
core  

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann   +3 more
wiley   +1 more source

Desarrollo de conocimiento geométrico euclidiano y uso de mapas

open access: yesAvances en Psicología Latinoamericana, 2013
We run an experiment in order to examine 60 Colombian children’s performance on a task that evaluates the use of ‘pure’ geometric maps for locating objects in a 3D space; the task was adapted from Spelke, Gilmore & McCarthy (2011).
Silvana Cortés Arboleda   +2 more
doaj  

Navigating geometric thought: A classroom-based intervention using discovery-contextual strategies aligned with van Hiele’s cognitive framework

open access: yesAl-Jabar
Purpose: This study aims to investigate the enhancement of students’ geometric thinking through the integration of Discovery–Contextual learning strategies with van Hiele’s levels of reasoning.
Nofyta Arlianti   +3 more
doaj   +1 more source

Geometric Thinking of Future Mathematics Teachers in Mozambique: a case study from Rovuma University

open access: yesTangram, 2020
We developed the research with 53 students, future math teachers, from the 1st year of the Degree in Mathematics Teaching at Rovuma University. The aim was to identify the level of development of geometric thinking of future mathematics teachers. To this
Rosalino Subtil Chicote   +1 more
doaj   +1 more source

From research to practice: The case of mathematical reasoning [PDF]

open access: yes, 2018
Mathematical proficiency is a key goal of the Australian Mathematics curriculum. However, international assessments of mathematical literacy suggest that mathematical reasoning and problem solving are areas of difficulty for Australian students.
Callingham, Rosemary   +6 more
core   +1 more source

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