Results 41 to 50 of about 41,732 (190)

Computing With Spreadsheets In Different Base Systems

open access: yesSpreadsheets in Education, 2012
This classroom note shows how one can use a spreadsheet in developing conceptual understanding of the decimal system of arithmetic through exploring representations of integers in non-decimal base systems.
Sergei Abramovich
doaj   +2 more sources

Children, algorithm and the decimal numeral system [PDF]

open access: yesInvestigações em Ensino de Ciências, 2010
A large number of studies in Mathematics Education approach some possible problems in the study of algorithms in the early school years of arithmetic teaching. However, this discussion is not exhausted.
Clélia Maria Ignatius Nogueira   +1 more
doaj  

Extending K-8 Mathematics Concepts in Alternate Bases

open access: yesProceedings of the Annual Meeting of the Georgia Association of Mathematics Teacher Educators, 2010
When learning to represent mathematics with manipulatives, many pre-service K-8 teachers rely on memorized rote procedures to perform the associated mathematical tasks; then they arrange the manipulatives to match their result, often with minimal ...
Dianna Spence
doaj   +1 more source

Natural Number Bias in Arithmetic Operations With Missing Numbers – A Reaction Time Study

open access: yesJournal of Numerical Cognition, 2020
When reasoning about numbers, students are susceptible to a natural number bias (NNB): When reasoning about non-natural numbers they use properties of natural numbers that do not apply.
Konstantinos P. Christou   +3 more
doaj   +1 more source

Representing numeric data in 32 bits while preserving 64-bit precision [PDF]

open access: yes, 2015
Data files often consist of numbers having only a few significant decimal digits, whose information content would allow storage in only 32 bits. However, we may require that arithmetic operations involving these numbers be done with 64-bit floating-point
Neal, Radford M.
core  

Mathematics anxiety: Effects of age, gender and culture

open access: yesBritish Journal of Educational Psychology, EarlyView.
Abstract Background Many studies have indicated that mathematics anxiety is a significant problem for many people and is an important topic for research. Mathematics anxiety is multidimensional. In particular, it is important to distinguish between worry and emotionality components, and between trait and state anxiety.
Ann Dowker
wiley   +1 more source

Nasopharynx microflora features and its role in the spread of nosocomial infection

open access: yesJournal of Education, Health and Sport, 2022
Introduction. The threat of the spread of nosocomial infection is exacerbated by a number of factors, among which we should note the increase in the number of multidisciplinary medical institutions of various forms of ownership, the creation of new ...
Nazarii Krulyk, Iryna Halabitska
doaj   +1 more source

A tutorial for understanding SEM using R: Where do all the numbers come from?

open access: yesBritish Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Structural equation modeling (SEM) is often seen as a complex and difficult method, especially for those who want to understand how the numbers in SEM software output are actually computed. Although many open‐source SEM tools are now available—especially in the R programming environment—looking into their source code to understand the ...
Yves Rosseel, Marc Vidal
wiley   +1 more source

Bayesian inference for dynamic Q matrices and attribute trajectories in hidden Markov diagnostic classification models

open access: yesBritish Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Hidden Markov diagnostic classification models capture how students' cognitive attributes evolve over time. This paper introduces a Bayesian Markov chain Monte Carlo algorithm for diagnostic classification models that jointly estimates time‐varying Q matrices, latent attributes, item parameters, attribute class proportions and transition ...
Chen‐Wei Liu
wiley   +1 more source

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