Search results for "instruction"
showing 10 items of 443 documents
Two experiments to approach the Boltzmann factor: chemical reaction and viscous flow
2012
In this paper we discuss a pedagogical approach aimed at pointing out the role played by the Boltzmann factor in describing phenomena usually perceived as regulated by different mechanisms of functioning. Experimental results regarding some aspects of a chemical reaction and of the viscous flow of some liquids are analysed and described in terms of macroscopic variables whose temperature dependence is proportional to the Boltzmann factor. A description of a workshop implementing the approach in the framework of an undergraduate course for engineering education and some preliminary results about its pedagogical relevance are then reported.
A Problem Based Approach to Elastic Wave Propagation: The Role of Constraints
2009
A problem-based approach to the teaching of mechanical wave propagation, focused on observation and measurement of wave properties in solids and on modelling of these properties, is presented. In particular, some experimental results, originally aimed at measuring the propagation speed of sound waves in metallic rods, are used in order to deepen the role of constraints in mechanical wave propagation. Interpretative models of the results obtained in the laboratory are built and implemented by using a well-known simulation environment. The simulation results are, then, compared with experimental data. The approach has been developed and experimented in the context of a workshop on mechanical …
Dynamic measurement of the elastic constant of an helicoidal spring by a smartphone
2021
Abstract We describe an educational activity that can be done by using smartphones to collect data in physics experiments aimed to measure the oscillating period of a spring-mass system and the elastic constant of the helicoidal spring by the dynamic method. Results for the oscillating period and for the elastic constant of the spring agree very well with measurements obtained by different methods. We also discuss the error analysis that can be done in an introductory physics laboratory at undergraduate level.
The elastic body model: a pedagogical approach integrating real time measurements and modelling activities
2007
In this paper, we describe a pedagogical approach to elastic body movement based on measurements of the contact times between a metallic rod and small bodies colliding with it and on modelling of the experimental results by using a microcomputer-based laboratory and simulation tools. The experiments and modelling activities have been built in the context of the laboratory of mechanical wave propagation of the two-year graduate teacher education programme of Palermo’s University. Some considerations about observed modifications in trainee teachers’ attitudes in utilizing experiments and modelling are discussed.
Connecting Research to Teaching: Guidelines for Teaching Plane Isometries in Secondary School
1995
Two key concepts strongly supported by the NCTM's Curriculum and Evaluation Standards for School Mathematics (1989) are (1) that geometry should be taught from multiple perspectives and (2) that it is necessary to make mathematical connections. Both concepts can be implemented by appropriately selecting topics that can be presented to students from several points of view in different environments and that can also link different branches of mathematics or mathematics and other sciences.
Los géneros discursivos y las secuencias didácticas: el lugar de los ejemplos prototípicos en la enseñanza y aprendizaje de la escritura
2018
[EN] From a social perspective, the aim of writing teaching is for students to be able to understand and write a great diversity of discursive genres, allowing them to behave as reflexive and critical citizens in different social spheres. In the process of mastery of each genre, the mental representation of the text is key, which acts as a regulating element of writing in different phases. This article shows the difficulties of the students to appropriate a specific genre (a book review), based on the data of a classroom research with students of 3rd ESO that addresses the writing of reviews through a didactic sequence including, as a regulatory element, prototypical examples of the genre. …
Discursive genres and didactic sequences: The place of the prototypical examples in the teaching and learning of writing
2018
[EN] From a social perspective, the aim of writing teaching is for students to be able to understand and write a great diversity of discursive genres, allowing them to behave as reflexive and critical citizens in different social spheres. In the process of mastery of each genre, the mental representation of the text is key, which acts as a regulating element of writing in different phases. This article shows the difficulties of the students to appropriate a specific genre (a book review), based on the data of a classroom research with students of 3rd ESO that addresses the writing of reviews through a didactic sequence including, as a regulatory element, prototypical examples of the genre. …
Embedded students? Can libraries benefit from students having work placements in the library in planning library instruction?
2019
This article discusses how students can be more integrated in developing library instruction and what advantages that can provide for librarians planning their teaching. The students seem to have a different starting point as to how important the librarians’ knowledge of the subject at hand is and whether or not library instruction should be an integrated part of the course.
Simple demonstration of the impact of spherical aberration on optical imaging
2008
We present an experiment, well adapted for students of introductory optics courses, for the visualization of the impact of spherical aberration in the point spread function of imaging systems. The demonstrations are based on the analogy between the point-spread function of spherically aberrated systems, and the defocused patterns of 1D slit-like screens.
Tools for education : policy analysis
2003
03125http://www-wds.worldbank.org/servlet/WDSContentServer/WDSP/IB/2003/06/06/000094946_03052904033567/Rendered/PDF/multi0page.pdf; This hands-on, interactive guide to evaluating and revamping education policy is designed to help policymakers in low-income countries identify weakness and make the most efficient use of scarce education resources. Education specialist in the developed world will also find this guide to be an invaluable tool for analyzing priorities and arriving at cost-effective solutions. The out-growth of training workshops held at the World Bank, this book and CD-ROM present relevant policy problems and engage the user in a search for effective education-service delivery o…