Assessing Students' Conceptual Understanding of Solubility Equilibrium

Raviolo, Andrés

doi:10.1021/ed078p629

Cited by 67 publications

(58 citation statements)

References 13 publications

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“…In this context, it has been established that the students can meaningfully construct their chemistry knowledge when they imagine the concepts at the microscopic level. Besides, they can also conceptualize their other knowledge and establish a suitable relationship between the concepts (Ebenezer, 2001;Özmen, Ayas & Coştu, 2002;Raviola, 2001). In this context, it is important to determine the students' microscopic understanding.…”

Section: Microscopic Understanding Of Strong and Weak Acidsmentioning

confidence: 99%

THE EFFECTIVENESS OF PREDICT–OBSERVE–EXPLAIN TECHNIQUE IN PROBING STUDENTS’ UNDERSTANDING ABOUT ACID–BASE CHEMISTRY: A CASE FOR THE CONCEPTS OF pH, pOH, AND STRENGTH

Kala

Yaman

Ayas

2012

Int J of Sci and Math Educ

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ABSTRACT. The present study describes high school students' conceptions about acids and bases in terms of pH, pOH, microscopic level, strength, and concentration. A total of 27 high school students participated in the study. The data was collected using 3 POE tasks and a semi-structured interview. The data analysis demonstrated that most of the students had poor understanding related to a drawing of weak and strong acids. In addition, the findings revealed that the POE's were effective in terms of gathering students' predictions and reasons for the prediction of outcomes in an open-ended format. The POE tasks also revealed that some of the students had misconceptions regarding pH and pOH. The students believed that pH was a measurement of the acidity, while pOH was a measurement of the basicity. The findings obtained have certain implications for the secondary chemistry program.

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Section: Microscopic Understanding Of Strong and Weak Acidsmentioning

confidence: 99%

THE EFFECTIVENESS OF PREDICT–OBSERVE–EXPLAIN TECHNIQUE IN PROBING STUDENTS’ UNDERSTANDING ABOUT ACID–BASE CHEMISTRY: A CASE FOR THE CONCEPTS OF pH, pOH, AND STRENGTH

Kala

Yaman

Ayas

2012

Int J of Sci and Math Educ

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“…Narration by Dr. Ann Ion helps clarify what the viewer is seeing and highlighting techniques are also used to scaffold the process. Studies indicate that beginning general chemistry students have a limited understanding of the molecular and electrolytic behavior of strong electrolytes, weak electrolytes and non-electrolytes (32,(39)(40)(41)(42)(43)). Many students will express only the simple whole number ratio of ions when constructing atomic level pictures.…”

Section: Building the Context -Developing Electronic Learning Toolsmentioning

confidence: 99%

How a Qualitative Study with Chemistry Instructors Informed Atomic Level Animation Design

Kelly

2013

ACS Symposium Series

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“…Gazlar konusu ile ilgili yapılan birçok çalışma farklı öğretim yöntem ve tekniklerin kullanılmasının öğrencilerin mikro boyuttaki bu konuyu anlamalarına yardımcı olduğunu ortaya koymuştur (İpek, 2007;Kaya, 2005;Yeşiloğlu, 2007). Mikro boyuttaki olayların öğrenciler tarafından tam ve doğru olarak anlaşılması için moleküllerin, atomların, teorik kavramların modellerle ve farklı somutlaştırıcı materyaller kullanılarak öğretilmesi önemli bulunmaktadır (Ebenezer, 2001;Çalık, Ayas ve Ünal, 2006;Ergün ve Sarıkaya 2014;Jaber ve Boujaoude, 2012;Johnstone, 1993;Özmen ve Ayas, 2003;Philipp, Johnson ve Yezierski, 2014;Raviolo, 2001). Modeller doğru ve etkili kullanıldığında öğrencilerin günlük hayatta karşılaştıkları makro boyuttaki olaylar ile kimyanın esasını oluşturan ve öğrencilerde yanlış kavramalara sebebiyet veren mikro boyuttaki olayları ilişkilendirmelerinde anahtar görevi üstlenebilir.…”

Section: Introductionunclassified

Maddenin Tanecikli Yapısının Anlaşılmasına Farklı Yöntemlerin ve Modellerin Etkisi

Çavdar¹,

Okumuş²,

Alyar³

et al. 2016

EEF DERGI

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ÖzetBu araştırmanın amacı, fen bilgisi eğitimi öğrencilerinin gazların tanecikli yapısını anlamalarında işbirlikli öğrenme yöntemi ve modellerin etkisini belirlemektir. Araştırmada yarı-deneysel yöntem kullanılmıştır. Araştırmanın örneklemini, fen bilgisi eğitimi birinci sınıfında öğrenim gören 79 öğrenci oluşturmaktadır. Çalışmada iki deney grubu [İşbirlikli Öğrenme Grubu ve İşbirlikli öğrenme ve modellerin birlikte kullanıldığı İşbirlikli Model Grubu] ve bir Kontrol Grubu olmak üzere üç grupla çalışılmıştır. Beş sorudan oluşan gazlarla ilgili maddenin tanecikli yapısı testi (GMTYT) öğrencilere ön test ve son test olarak uygulanmıştır. Yapılan ANOVA sonucuna göre son testte gruplar arasında anlamlı bir fark bulunmuştur. Ayrıca öğrencilerde gazların dağılımının molekül kütleleriyle ilişkili olması, sıcaklık artışı ile meydana gelen hacim değişiminin tanecik sayısı artışından kaynaklanması, gaz moleküllerinin birbiri içerisinde karışırken atomlarına ayrılarak karışmaları şeklinde yanılgılar tespit edilmiştir. Anahtar Sözcük: Gazlar, maddenin tanecikli yapısı, işbirlikli öğrenme, modeller AbstractThe aim of this study was determining the effects of cooperative learning methods and models on the science education students' understanding of the particulate nature of gases.It was used quasi-experimental method with preposttest.The sample was composed 79 first class science teacher education program students.It was studied with three groups: cooperative learning group, cooperative learning with models group and control group. In order to compare the academic achievement it was used Particulate Nature of Matter Test (GMTYT) related to gases. The GMTYT was contains five drawing questions. Also it was determined the groups' conceptual misconceptions. According to ANOVA results, it found significant difference among groups.

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Assessing Students' Conceptual Understanding of Solubility Equilibrium

Cited by 67 publications

References 13 publications

THE EFFECTIVENESS OF PREDICT–OBSERVE–EXPLAIN TECHNIQUE IN PROBING STUDENTS’ UNDERSTANDING ABOUT ACID–BASE CHEMISTRY: A CASE FOR THE CONCEPTS OF pH, pOH, AND STRENGTH

THE EFFECTIVENESS OF PREDICT–OBSERVE–EXPLAIN TECHNIQUE IN PROBING STUDENTS’ UNDERSTANDING ABOUT ACID–BASE CHEMISTRY: A CASE FOR THE CONCEPTS OF pH, pOH, AND STRENGTH

How a Qualitative Study with Chemistry Instructors Informed Atomic Level Animation Design

Maddenin Tanecikli Yapısının Anlaşılmasına Farklı Yöntemlerin ve Modellerin Etkisi

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