A Case Study for Teaching Quantitative Biochemical Buffer Problems Using Group Work and "Khan Style" Videos

Barreto, José C.; Reilly, John T.; Brown, David W.; Frost, Laura; Coticone, Sulekha; Dubetz, Terry; Beharry, Zanna; McGibony, C. Michele Davis; Ramoutar, Ria R.; Rudd, Gillian

doi:10.2505/4/jcst14_044_01_34

Cited by 4 publications

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…2−7 A few of these studies included assessments of student learning. 4−7 For example, effective student understanding was reported by Barreto et al 4 after intervention with "Khan style" videos in a biochemistry course and by Rodriguez et al 5 after an experiment using baby wipes to prepare a buffer. Another study showed an increase in correct buffer answers after a guided inquiry laboratory involving discussion of pooled class data.…”

Section: Literature Backgroundmentioning

confidence: 99%

“…Most published reports concerning learning of buffer concepts are laboratory experiment or classroom innovations. − A few of these studies included assessments of student learning. − For example, effective student understanding was reported by Barreto et al after intervention with “Khan style” videos in a biochemistry course and by Rodriguez et al . after an experiment using baby wipes to prepare a buffer.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Student Conceptions of pH Buffers Using a Resource Framework: Layered Resource Graphs and Levels of Resource Activation

Sheppard

Bauer

2022

J. Chem. Educ.

View full text Add to dashboard Cite

pH buffers are used extensively in research and industry making them an important chemistry topic for students to learn. This qualitative study uses the phenomenographic method and a resource theoretical framework to provide the first insights into how students approach conceptual buffer problems. Three scaffolded buffer question sets were designed to promote in-depth conceptual responses during a think aloud interview followed by retrospective reporting. Open-coding for activated resources led to three levels of resource activation: Surface Features, Building Connections, and Interconnected. Layered resource graphs provide a visual representation of a diverse array of activated resources, how resources are connected, and which question type promoted particular activations. Some resources such as Accept or Donate H + were consistently activated in all three questions whereas other resources such as pH relative to pK a were productive only in particular contexts, thereby highlighting the contextual dependence of resource productivity. Challenges were observed in productively activating crucial resources such as Accept or Donate H + and in maintaining activations over time even within the same scaffolded question. Specific suggestions are provided on making connections between resources to promote students to a higher level of resource activation and success with buffer problems. Future research should probe the types of activities that can promote productive resource activations and connections.

show abstract

Section: Literature Backgroundmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Student Conceptions of pH Buffers Using a Resource Framework: Layered Resource Graphs and Levels of Resource Activation

Sheppard

Bauer

2022

J. Chem. Educ.

View full text Add to dashboard Cite

show abstract

“…Entretanto, esta atividade também é criticada por consumir muito tempo, restando pouco tempo para a aula expositiva do professor. Barreto (2014) afirma que as exposições de conteúdos gravados em vídeos podem ser vistas em qualquer lugar e quantas vezes forem necessárias, deixando tempo para atividades em grupos na sala de aula.…”

Section: A Sala De Aula Invertida No Ensino De Programação De Computadoresunclassified

Sala De Aula Invertida E O Ensino De Programação De Computadores

Júnior¹,

Carvalho²

2019

Programa De Residência Pedagógica Na Licenciatura Em Informática: Partilhando Possibilidades

View full text Add to dashboard Cite

Classification of Instructional Videos

2021

View full text Add to dashboard Cite

A Case Study for Teaching Quantitative Biochemical Buffer Problems Using Group Work and "Khan Style" Videos

Cited by 4 publications

References 8 publications

Student Conceptions of pH Buffers Using a Resource Framework: Layered Resource Graphs and Levels of Resource Activation

Student Conceptions of pH Buffers Using a Resource Framework: Layered Resource Graphs and Levels of Resource Activation

Sala De Aula Invertida E O Ensino De Programação De Computadores

Classification of Instructional Videos

Contact Info

Product

Resources

About