Results 41 to 50 of about 609,734 (299)

ERRORS ANALYSIS OF STUDENTS IN SOLVING VOLUME OF THE SOLID OF REVOLUTION PROBLEM IN TERM OF CRITICAL THINKING ASPECTS

open access: yesKalamatika, 2020
Students of mathematics education need to have a good understanding in solving integral calculus problems, but often have difficulty in understanding the subject material.
Betty Kusumaningrum   +2 more
doaj   +1 more source

Toward a Semiotic Framework for Using Technology in Mathematics Education: The Case of Learning 3D Geometry [PDF]

open access: yes, 2004
This paper proposes and examines a semiotic framework to inform the use of technology in mathematics education. Semiotics asserts that all cognition is irreducibly triadic, of the nature of a sign, fallible, and thoroughly immersed in a continuing ...
Nason, Rodney, Yeh, Andy
core   +1 more source

Ultrahigh Piezoelectricity in Truss‐Based Ferroelectric Ceramics Metamaterials

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
By leveraging the unique combination of polarization direction and loading state, ultrahigh piezoelectricity is achieved through careful tuning of the relative density and scaling ratio in truss‐based ferroelectric metamaterials. This approach enables the simultaneous realization of extremely high piezoelectric constants and ultralow dielectric ...
Jiahao Shi   +6 more
wiley   +1 more source

The Exponential Function Meaning on Mathematical Modeling Activities: A Semiotic Approach

open access: yesREDIMAT, 2018
In this article we present a reflection on the meaning attribution to the mathematical object exponential function that emerges from two mathematical modelling activities.
Karina Alessandra Pessoa da Silva   +1 more
doaj   +1 more source

Zolotarev's proof of Gauss reciprocity and Jacobi symbols [PDF]

open access: yes, 2011
2000 Mathematics Subject Classification: Primary 11A15.We extend to the Jacobi symbol Zolotarev's idea that the Legendre symbol is the sign of a permutation, which leads to simple, strightforward proofs of many results, the proof of the Gauss Reciprocity
Szyjewski, Marek
core  

Historical objections against the number line [PDF]

open access: yes, 2011
Historical studies on the development of mathematical concepts will help mathematics teachers to relate their students’ difficulties in understanding to conceptual problems in the history of mathematics.
Heeffer, Albrecht
core   +1 more source

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

Learner performance in the 2009 to 2014 final Grade 12 mathematics examination: A quantile regression approach

open access: yesPythagoras, 2020
The South African education system bears evidence of fluctuations in the final Grade 12 mathematics marks occurring across different learner profiles. This study reflected on the National Senior Certificate (NSC) mathematics results from the Western Cape
Nombuso Zondo   +2 more
doaj   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

Representations of Inverse Functions by the Integral Transform with the Sign Kernel [PDF]

open access: yes, 2007
Mathematics Subject Classification: Primary 30C40In this paper we give practical and numerical representations of inverse functions by using the integral transform with the sign kernel, and show corresponding numerical experiments by using computers.
Matsuura, Tsutomu   +2 more
core  

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