Results 81 to 90 of about 3,100,077 (373)

Exploring the role of spatial ability in the mental representation of word problems in mathematics

open access: yesFrontiers in Education
Problem solving is important to many activities, both in a learning context and in everyday tasks. We can be challenged to solve what later turn out to be very simple problems.
Gavin Duffy, Sheryl Sorby, Brian Bowe
doaj   +1 more source

Enfoques de investigación en problemas verbales aritméticos aditivos [PDF]

open access: yes, 1992
A main field in the current research in Mathematics Education is the work with arithmetical word problem solving, which is both interesting and useful.
Castro Martínez, E.   +2 more
core   +2 more sources

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies   +8 more
wiley   +1 more source

Algebraic thinking of grade 8 students in solving word problems with a spreadsheet [PDF]

open access: yes, 2011
This paper describes and discusses the activity of grade 8 students on two word problems, using a spreadsheet. We look at particular uses of the spreadsheet, namely at the students’ representations, as ways of eliciting forms of algebraic thinking ...
Amado, Nélia   +3 more
core  

Modeling Target-Side Inflection in Neural Machine Translation

open access: yes, 2017
NMT systems have problems with large vocabulary sizes. Byte-pair encoding (BPE) is a popular approach to solving this problem, but while BPE allows the system to generate any target-side word, it does not enable effective generalization over the rich ...
Fraser, Alexander   +2 more
core   +1 more source

The Influence of Annealing on the Sb Layer in the Synthesis of [001]‐Oriented Sb2Se3 Film for Photoelectrochemical Hydrogen Gas Generation

open access: yesAdvanced Functional Materials, EarlyView.
[001]‐oriented Sb2Se3 film with improved crystallinity and adjusted composition is achieved via a new thermal treatment approach consisting of preliminary annealing of the Sb layer before its selenization. The findings of this work demonstrate enhanced charge carriers' transportation, a stable performance, and an improvement of H2 generation from ...
Magno B. Costa   +7 more
wiley   +1 more source

HOW PRIMARY SCHOOL TEACHERS DEVELOP THEIR PUPILS’ MATHEMATICAL WORD PROBLEM SOLVING SKILLS [PDF]

open access: yesStudia Universitatis Babeş-Bolyai. Psychologia-Paedagogia, 2012
. Problem solving is an important skill that all persons should possess. Mathematical word problems contribute for the development of the problem solving skill.
IULIANA MARCHIŞ
doaj  

Wavelength‐Dependent Differential Amplification of Raman Scattering by Chiral Gold Nanorods for Multiplexed Encoding

open access: yesAdvanced Functional Materials, EarlyView.
The SERS spectra of reporter molecules adsorbed on chiral gold nanorods depends on the handedness of circularly polarized light (CPL‐SERS). The bisignate plasmonic CD spectra of chiral nanorods provides wavelength‐dependent CPL‐SERS. Selective discrimination of chiral nanorod handedness and different Raman reporters allow highly sensitive codification ...
Andrés Serrano‐Freijeiro   +9 more
wiley   +1 more source

Explanatory Sequential Study on Word Problem-Solving and Mathematical Cognitive Skills of College Students: Implications for STEM Competencies Development

open access: yesEducational Process: International Journal
Background/purpose. The strategic goal of science, technology, engineering, and mathematics (STEM) literacy is to develop scientifically and technologically equipped global citizens who are innovators and problem-solvers in a rapidly changing world ...
Rica Mae D. Rio, Judel V. Protacio
doaj   +1 more source

Students’ Problem Solving Behavior On Multiplicative Word Problem

open access: yesJournal of Physics: Conference Series, 2019
Abstract Students in junior high school frequently erroneously solving multiplicative word problems. Students in this stage should be able to understand the known and what is asked, what the strategies properly, and how to execute it become the right one.
S R Auliatullah, Y Fuad, R Ekawati
openaire   +1 more source

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