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Kalinowski, Steven T. – Educational and Psychological Measurement, 2019
Item response theory (IRT) is a statistical paradigm for developing educational tests and assessing students. IRT, however, currently lacks an established graphical method for examining model fit for the three-parameter logistic model, the most flexible and popular IRT model in educational testing. A method is presented here to do this. The graph,…
Descriptors: Item Response Theory, Educational Assessment, Goodness of Fit, Probability
Patahuddin, Sitti Maesuri; Lowrie, Tom – International Journal of Science and Mathematics Education, 2019
Teachers should possess a robust knowledge of graph interpretation in a world that requires increasingly scientific citizens. This study aimed to investigate teachers' knowledge of interpreting a context-based line graph, by understanding the types of difficulties teachers have in interpreting such graphs. The study also sought to determine…
Descriptors: Gender Differences, Graphs, Teaching Experience, Foreign Countries
White, Tobin – Cognition and Instruction, 2019
This article analyzes an episode of classroom mathematics activity mediated by graphing technology from 3 different theoretical perspectives. An important line of research in the learning sciences focuses on graphs as "inscriptions", foregrounding learners' interactions with and around the material properties of graphical displays.…
Descriptors: Mathematics Education, Educational Technology, Technology Uses in Education, Teaching Methods
Deguara, Josephine – Journal of Early Childhood Research, 2019
Children's drawings have been analysed in research for several decades, frequently using a narrative style. This article introduces an innovative methodological tool to analyse young children's drawings. Taking a social semiotics perspective, the aim of this tool is not to replace narrative analysis but to complement it. The study was conducted…
Descriptors: Freehand Drawing, Family Environment, Educational Environment, Semiotics
Wallace, Kelli P. – ProQuest LLC, 2019
Response to Intervention (RTI) is a general education initiative intended to identify struggling readers and provide them with early, targeted intervention. The RTI model--which emphasized research-based instruction presented with fidelity along with the use of informed student data--was adopted by many school districts not only to provide…
Descriptors: Response to Intervention, Data Use, Decision Making, Reading Difficulties
O'Dell, Jenna R.; Frauenholtz, Todd – North American Chapter of the International Group for the Psychology of Mathematics Education, 2019
In this study, we investigated one student as she engaged in the exploration of a graph theory problem, the Graceful Tree Conjecture. The study took place in a classroom in the Midwestern United States which contained eighteen students. We report on a descriptive case study of one student, Heidi, as she works her way through different classes of…
Descriptors: Grade 4, Elementary School Students, Mathematical Logic, Learner Engagement
Paoletti, Teo; Vishnubhotla, Madhavi; Mohamed, Mustafa – North American Chapter of the International Group for the Psychology of Mathematics Education, 2019
Systems of equations are an important topic in school mathematics. However, there is limited research examining productive ways of supporting students' understandings of systems of equations. In this paper, we first present a conceptual analysis of potential ways students may leverage their quantitative and covariational reasoning to graph systems…
Descriptors: Equations (Mathematics), Mathematics Instruction, Teaching Methods, Mathematical Concepts
Moon, Kyunghee – North American Chapter of the International Group for the Psychology of Mathematics Education, 2019
This study investigated preservice secondary mathematics teachers' difficulties with and understanding of graphs of two-variable inequalities with the lens of the APOS theory. The analysis showed that most teachers understood inequality graphs as actions, at best, and used informal rules to construct graphs. They also had difficulty justifying…
Descriptors: Preservice Teachers, Secondary School Teachers, Mathematics Teachers, Knowledge Level
Diwakar, Rekha – Practical Assessment, Research & Evaluation, 2017
Many existing methods of statistical inference and analysis rely heavily on the assumption that the data are normally distributed. However, the normality assumption is not fulfilled when dealing with data which does not contain negative values or are otherwise skewed--a common occurrence in diverse disciplines such as finance, economics, political…
Descriptors: Statistical Inference, Statistical Distributions, Research, Foreign Countries
Frank, Kristin Marianna – ProQuest LLC, 2017
Researchers have documented the importance of seeing a graph as an emergent trace of how two quantities' values vary simultaneously in order to reason about the graph in terms of quantitative relationships. If a student does not see a graph as a representation of how quantities change together then the student is limited to reasoning about…
Descriptors: Logical Thinking, Graphs, Calculus, College Students
Burns, J.; Polus, S.; Brereton, L.; Chilcott, J.; Ward, S. E.; Pfadenhauer, L. M.; Rehfuess, E. A. – Research Synthesis Methods, 2018
We describe a combination of methods for assessing the effectiveness of complex interventions, especially where substantial heterogeneity with regard to the population, intervention, comparison, outcomes, and study design of interest is expected. We applied these methods in a recent systematic review of the effectiveness of reinforced home-based…
Descriptors: Evaluation Methods, Intervention, Program Effectiveness, Health Services
Zetie, K. P. – Physics Education, 2018
Any teacher of physics is likely to consider super-curricular reading as an important strategy for successful students. However, there are many more ways to extend a student's interest in a subject than reading books, and undirected reading (such as providing a long out of date reading list) is not likely to be as helpful as targeted or directed…
Descriptors: Physics, Student Interests, Science Instruction, Foreign Countries
Sokolowski, Andrzej – Physics Teacher, 2018
Traditional school laboratory exercises on a system of moving objects connected by strings involve deriving expressions for the system acceleration, a = (?F)/m, and sketching a graph of acceleration vs. force. While being in the form of rational functions, these expressions present great opportunities for broadening the scope of the analysis by…
Descriptors: Physics, Scientific Concepts, Inferences, Science Instruction
Quinnell, Lorna – Australian Primary Mathematics Classroom, 2018
Successful mathematical problem-solving relies on choices about how best to represent and solve problems. In this article, a range of methods and strategies are presented for solving a single mathematical problem, including novel methods posed by in-service teachers at one Australian university. The variety of problem-solving strategies rely on…
Descriptors: Problem Solving, Selection, Mathematics, Methods
Teaching Graphical Simulations of Fourier Series Expansion of Some Periodic Waves Using Spreadsheets
Singh, Iqbal; Kaur, Bikramjeet – Physics Education, 2018
The present article demonstrates a way of programming using an Excel spreadsheet to teach Fourier series expansion in school/colleges without the knowledge of any typical programming language. By using this, a student learns to approximate partial sum of the n terms of Fourier series for some periodic signals such as square wave, saw tooth wave,…
Descriptors: Physics, Science Instruction, Teaching Methods, Scientific Concepts