scholarly journals Aprendizaje basado en problemas como estrategia para el desarrollo de competencias económicas y financieras desde el algebra

Assensus ◽  
2018 ◽  
Vol 3 (4) ◽  
pp. 37-48
Author(s):  
Sandra Ortega Álvarez ◽  
Nohemy Carrascal Torres
Keyword(s):  
San Jose ◽  
Post Test ◽  
San Carlos

Este artículo se deriva de un estudio desarrollado con la finalidad de evaluar la efectividad relativa del aprendizaje basado en problemas (ABP), comparado con el método tradicional, para el desarrollo de la competencia económica y financiera (CEF) desde la enseñanza del álgebra, en la Institución Educativa San José de Carrizal del municipio de san Carlos Córdoba - Colombia. Se establece la estrategia de implementación de dos unidades didácticas de trabajo, fundamentadas en el enfoque ABP y organizadas alrededor de tres dominios: los contenidos (económicos y financieros), las competencias (planeación y administración), y los contextos (hogar, empresa y estado). El estudio es de tipo cuasi experimental con dos grupos: experimental y control. A estos grupos se les aplicó un pre-test, y posterior a la intervención, se les aplicó un post-test de control de equivalencia entre ellos. En el análisis de resultados se utilizaron las pruebas no paramétricas de Wilcoxon, y de Mann-Whitney. Los resultados obtenidos permitieron establecer que, en general, las competencias económicas y financieras mejoraron tanto en el grupo experimental como en el grupo control; los estudiantes del grupo control respondieron de manera más acertada en la prueba Post-test, que en la prueba Pre-test, evidenciándose que la aplicación de la metodología tradicional surte efecto, aunque la diferencia es más fuerte cuando se aplica la metodología ABP.

scholarly journals Biología y cría de la mosca del establo Stomoxys calcitrans L.

2018 ◽  
Vol 11 (1) ◽  
pp. 5-19
Author(s):  
Cristina Vargas Chacón ◽  
Arturo Solórzano Arroyo
Keyword(s):  
Costa Rica ◽  
Stomoxys Calcitrans ◽  
San Jose ◽  
San Carlos

El estudio se realizó en el Laboratorio de Servicios de Fitoprotección del INTA, San José, Costa Rica. Se estudiaron elementos de la biología del insecto que contribuyeron a reproducir una colonia de la mosca del establo hasta su domesticación después de cinco generaciones, a partir de una población silvestre capturada en rastrojos de piña en San Carlos de la provincia de Alajuela. El estudio permitió conocer elementos básicos de su biología, que contribuyeron a la reproducción de los estadios de huevo, larva, pupa y adulto en condiciones de laboratorio. A una temperatura entre 26-28 °C y una humedad relativa entre 65-75 %, se logró un ciclo biológico de 18 días, el cual se alargó hasta 43 días cuando las condiciones nutricionales fueron insuficientes, manteniéndose el insecto en estadio larval. Los adultos se mantuvieron vivos hasta por 28 días. Cabe destacar que se requirió dotar a las moscas silvestres de una solución azucarada de leche en polvo al 10 %, además de sangre con anticoagulante para que se iniciara la oviposición; luego de cuatro ciclos la leche no fue necesaria. Además se elaboró el protocolo de cría que garantiza la cantidad de individuos necesarios para futuros estudios. La mosca del establo afecta directamente la ganadería e indirectamente la sostenibilidad de las explotaciones agrícolas que dejan en el campo grandes cantidades de rastrojos en proceso de descomposición, que aunado a unmal manejo beneficia la propagación de este tipo de díptero. 

scholarly journals Guided Quick Labs and Academically Challenged Learners’ Predicting, Observing, and Inferring Skills

2020 ◽  
Vol 3 (1) ◽  
pp. 101-111
Author(s):  
Martin John M. Salanatin
Keyword(s):  
Experimental Study ◽  
Science Laboratory ◽  
San Jose ◽  
National School ◽  
Laboratory Activities ◽  
Before And After ◽  
Post Test ◽  
Quasi Experimental ◽  
Academically Challenged

This quasi-experimental study aimed at determining the effects of guided quick labs and traditional science laboratory activities on academically-challenged Grade 10 learners' predicting, observing, and inferring skills. The subjects in this study were the 60 academically-challenged Grade 10 learners of Antique National School in San Jose, Antique. The subjects were divided into two groups, the traditional and the quick labs. Pretest and post-test ware used to measure the predicting, observing, and inferring skills of the learners before and after exposure to both laboratory activities. The results showed that the predicting, observing, and inferring skills of the academically-challenged Grade 10 learners in both groups were comparable at the start of the six (6)-week intervention. After the intervention, the results revealed that both groups were still comparable. The findings proved that both types of laboratory activities have a similar effect in predicting and observing skills and is best improving the learners' inferring skills.

scholarly journals Iniciativas turísticas, geografía humana y del transporte en asentamientos rurales en la zona Huetar Norte de Costa Rica: El caso de San Juan de Peñas Blancas, San José de la Tigra, El Futuro y Boca San Carlos

2013 ◽  
Vol 16 (1) ◽  
Author(s):  
Adrián Ruiz Rodríguez ◽  
Luis Daniel Vega Herrera
Keyword(s):  
Costa Rica ◽  
San Juan ◽  
San Jose ◽  
San Carlos

La Región Huetar Norte entre otras cosas se caracteriza por la actividad agropecuaria y turística. Estudiando características generales de asentamientos, se determinan limitaciones y necesidades para el desarrollo de un turismo acorde con su contexto, considerando superestructura, distancias, iniciativas y posibles atractivos. Destacan limitaciones educativas y operacionales; sin embargo ofertan alimentos, cultura agropecuaria y turismo rural. Este estudio y su proceso cabría dentro de la investigación- acción pues las etapas de diagnóstico participativo se han integrado con coordinación institucional, ejecución de capacitación y transferencia por parte de la Escuela de Ciencias Exactas y Naturales (ECEN: 2008- a la fecha) y la Escuela de Ciencias Sociales y Humanidades (ECSH: 2013).

scholarly journals Teaching and Learning Mathematics Using Facebook Group

2021 ◽  
Vol 2 (2) ◽  
pp. 1-18
Author(s):  
Rodulfo T. Aunzo
Keyword(s):  
Learning Process ◽  
Teaching And Learning ◽  
Instructional Materials ◽  
Control Groups ◽  
Teaching And Learning Mathematics ◽  
Post Test ◽  
Teaching Learning ◽  
The University ◽  
And Control ◽  
San Carlos

Almost every organization makes use of a Facebook group. They utilized it to debate themes and other problems concerning their own survival. Numerous mathematics instructors have already embraced its usefulness as a method of providing instructional materials to their pupils in the modern day. With these factors in mind, this research study on the use of Facebook groups in the teaching-learning process of mathematics was performed with the pioneer batch of ABM students at the University of San Carlos – Senior High School in Cebu City, Philippines. Through this amazing and updated communication medium, the kids learnt a new lesson. The statistical study revealed that the use of Facebook groups in the teaching-learning process of mathematics is beneficial. This is shown by the statistical equality of the experimental and control groups' post-test results. This demonstrates that the performance of students in the experimental and control groups is comparable. This is because the experimental groups did not participate in classroom discussions yet fared as well as the controls groups who did. Additional pertinent results from the research are provided in this article.

OCS Rehabilitation and Kevlar Contact Wire Fall Prevention VTA San Jose, CA

2021 ◽  
Author(s):  
Paul F. White ◽  
Gerti Kola ◽  
Ash Siddiq ◽  
Alan Ng
Keyword(s):  
Systems Engineering ◽  
San Jose ◽  
Contact Wire ◽  
Safety Concerns ◽  
Santa Clara Valley ◽  
Guadalupe River ◽  
Inspection Process ◽  
Design Documents ◽  
Disconnect Switch ◽  
San Carlos

Abstract Santa Clara Valley Transportation Authority (VTA) required their original overhead contact system (OCS) along North 1st Street between interstate highway I-880 and West San Carlos Street at the Guadalupe River (opened in 1987) to be rehabilitated. HNTB was chosen to assist with the project and the first task included an overall inspection of the line to ascertain condition, operational deficiencies, and safety concerns. From this inspection, VTA prepared a scope of work for HNTB to perform and then prepare design documents for contractor bidding. During the inspection process, VTA further requested an evaluation of pole deflection in their Guadalupe Yard. Of interest is the line from Younger Street to the Guadalupe River at West San Carlos Street being joint pantograph and trolley pole compatible as VTA operates heritage streetcars during their Christmas holiday season. The inspection of the OCS revealed deficiencies and safety concerns due to the age and type of equipment in use, most of it being original. Trolley frogs, crossover pans, and section insulators had field constructed gliders that were non-standard or inconsistent between assemblies. Trolley wires were suspended by clamps with no insulation requiring span wire insulators which made the span wire between the insulators alive at 750 volts. An open faced disconnect switch was too close to an apartment balcony with the possibility of the live parts being touched by people on the balcony, and some OCS poles were too short to raise span wires for adjustment. During inspection, a trolley wire broke at a trolley frog anchor tip and fell to the street at the pedestrian mall in downtown San Jose. VTA systems engineering had the idea of supporting the single contact wire supported and clamped to a Kevlar messenger wire. This support system in theory was proven to prevent the broken contact wire to hang 3.047m [10 feet] above ground, a CPUC G.O. 95 requirement. Similar Kevlar restraining supports were used by VTA to prevent the contact and messenger wires from falling down as a result of in-span insulator failure. VTA directed HNTB to use VTA’s idea to design a system of wire constraint using Kevlar synthetic rope to prevent wires from falling. This paper describes the deficiencies and safety concerns discovered during inspection and how they were eliminated through creative OCS design. It further describes the process of inspection, direction, design, and operation of the rehabilitation project and how the use of Kevlar synthetic rope was used to keep trolley wire from falling during wire breaks both in theory and actuality. It also describes the issues encountered during construction, stagger issues from joint operation, pole extension implementation, and general improvements made to the OCS.

Förderung der Lesekompetenz mittels reziproken Lehrens: Implementation und Wirksamkeit imRegelunterricht

2016 ◽  
Vol 30 (4) ◽  
pp. 213-225 ◽  
Author(s):  
Helvi Koch ◽  
Nadine Spörer
Keyword(s):  
Good Practice ◽  
Post Test

Zusammenfassung. Ziel war es, die Effektivität zweier Interventionen zur Förderung der Lesekompetenz von Fünftklässlern zu untersuchen. Beide Treatments wurden von Regellehrkräften implementiert. Die eine Intervention war das reziproke Lehren, welches um Selbstregulationsprozeduren angereichert wurde (RT+SRL). Die zweite war eine von Lehrkräften konzipierte lesestrategiebasierte Unterrichtseinheit (Good Practice, GP). Zusätzlich gab es eine No-Treatment-Kontrollgruppe (KG0). Insgesamt nahmen an der Studie N = 244 Schüler teil. Im Rahmen eines Pre-, Post-, Follow-Up-Test-Untersuchungsplans kamen standardisierte Leseverständnisaufgaben, selbstkonstruierte Lesestrategieaufgaben und eine Selbstwirksamkeitsskala zum Einsatz. Kontrastierende Einzelvergleichsanalysen ergaben, dass sich die Schüler der Treatmentbedingung RT+SRL im Vergleich zu den Schülern der Kontrollgruppe zum Post-Test signifikant stärker im Leseverständnis, in der Lesestrategieanwendung und in der Selbstwirksamkeit verbesserten. Gleiches galt für die Lesestrategieanwendung zum Follow-Up-Test. Schüler der Bedingung GP konnten im Vergleich zu KG0-Schülern weder zum Post- noch zum Follow-Up-Test vorteilige Ergebnisse in den drei Kriteriumsmaßen erzielen.

LRS-Elterngruppenprogramm: Teilnehmerzufriedenheit und subjektive Effektivität

2016 ◽  
Vol 5 (1) ◽  
pp. 44-57
Author(s):  
Anke Buschmann ◽  
Bettina Multhauf
Keyword(s):  
Goal Attainment ◽  
Goal Attainment Scaling ◽  
Eine Hohe ◽  
Post Test

Zusammenfassung. Das Ziel vorliegender Studie bestand in einer Überprüfung der Akzeptanz und Teilnehmerzufriedenheit eines Gruppentrainings für Eltern von Kindern mit Lese- und/oder Rechtschreibschwierigkeiten. Zudem sollten erste Indikatoren bezüglich der Wirksamkeit des Programmes untersucht werden. Dazu wurden Daten von 25 Müttern zu 2 Messzeitpunkten (Post-Test, 3-Monats-Follow-up) analysiert. Die Probandinnen nahmen über einen Zeitraum von 3 Monaten an 5 Sitzungen des Programms «Mein Kind mit Lese- und Rechtschreibschwierigkeiten verstehen, stärken und unterstützen: Heidelberger Elterntraining zum Umgang mit LRS» teil. Ein Paper-Pencil-Fragebogen diente zum Post-Test der Erhebung von Teilnahmeparametern, der Zufriedenheit mit dem Training, der Relevanz einzelner Themen und der wahrgenommenen Veränderungen in wichtigen Zielbereichen. Zusätzlich kam eine für das Gruppensetting adaptierte Form des Goal Attainment Scaling zum Einsatz, um das Erreichen persönlich relevanter Ziele unmittelbar nach dem Training sowie 3 Monate später zu erfassen. Die Analyse des Fragebogens zeigte eine hohe Partizipationsbereitschaft der Mütter. Die Rahmenbedingungen des Trainings (Gruppengröße, Dauer des Trainings und der Sitzungen) sowie die didaktischen Methoden wurden als ideal und die Themen als relevant eingeschätzt. Die Mütter sahen sich in der Lage, die Inhalte im Alltag anzuwenden und nahmen positive Veränderungen hinsichtlich Einfühlungsvermögen, Unterstützung des Kindes, Hausaufgabensituation und Beziehung zum Kind wahr. Das Ausmaß des Erreichens individueller Ziele zum Post-Test variierte je nach Zielbereich: Einfühlen und Verstehen (75 %), Optimierung der Hausaufgabensituation (76 %), Unterstützung psychosozialer Entwicklung (86 %), Lese-Rechtschreibförderung (60 %) und war auch 3 Monate später noch vergleichbar hoch. Die Überprüfung der Wirksamkeit hinsichtlich einer Belastungsreduktion und Kompetenzstärkung seitens der Eltern erfolgt aktuell im Vergleich zu einer unbehandelten Kontrollgruppe.

Clinically Meaningful Change

Methodology ◽  
2019 ◽  
Vol 15 (3) ◽  
pp. 97-105
Author(s):  
Rodrigo Ferrer ◽  
Antonio Pardo
Keyword(s):  
Effect Size ◽  
False Negative ◽  
False Negative Rate ◽  
Point Of View ◽  
Skewed Distribution ◽  
Effect Sizes ◽  
False Negatives ◽  
Large Size ◽  
Before And After ◽  
Post Test

Abstract. In a recent paper, Ferrer and Pardo (2014) tested several distribution-based methods designed to assess when test scores obtained before and after an intervention reflect a statistically reliable change. However, we still do not know how these methods perform from the point of view of false negatives. For this purpose, we have simulated change scenarios (different effect sizes in a pre-post-test design) with distributions of different shapes and with different sample sizes. For each simulated scenario, we generated 1,000 samples. In each sample, we recorded the false-negative rate of the five distribution-based methods with the best performance from the point of view of the false positives. Our results have revealed unacceptable rates of false negatives even with effects of very large size, starting from 31.8% in an optimistic scenario (effect size of 2.0 and a normal distribution) to 99.9% in the worst scenario (effect size of 0.2 and a highly skewed distribution). Therefore, our results suggest that the widely used distribution-based methods must be applied with caution in a clinical context, because they need huge effect sizes to detect a true change. However, we made some considerations regarding the effect size and the cut-off points commonly used which allow us to be more precise in our estimates.

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