PI Carlos Ayala PI Jim Minstrell PI Chemistry Facets Formative Assessment to Improve Student Understanding in Chemistry This material is based on work supported by the National Science Foundation under grant DRL0733169 Chemistry Facets Formative Assessment ID: 279047
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Angela H. DeBarger PI Carlos Ayala PI Jim Minstrell PI
Chemistry Facets: Formative Assessment to Improve Student Understanding in Chemistry
This material is based on work supported by the National Science Foundation under grant DRL-0733169 (Chemistry Facets: Formative Assessment to Improve Student Understanding in Chemistry). Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.Slide2
Development GoalsContent Development Goal: Develop chemistry content for Diagnoser system: facet clusters, elicitation questions, developmental lessons, diagnostic assessments, and prescriptive activities
Technology Development Goal: Extend
Diagnoser content management and authoring system to facilitate assessment implementationSlide3
Research GoalsDocument the process of creating this system of diagnostic assessments and pedagogical resources in chemistryValidate content, assessments and diagnostic approachSlide4
Atomic Structure of Matter Facet ClustersFacet Cluster 1.1. AtomsFacet Cluster 1.2. Model of an AtomFacet Cluster 1.3. Elements
Facet Cluster 1.4. ElectronsFacet Cluster 1.5. Precursor to Bonding
Facet Cluster 1.6. Ways Atoms are Held TogetherSlide5
Changes in Matter Facet ClustersFacet Cluster 2.1. Describing ChangesFacet Cluster 2.2. Changes that Result in New SubstancesFacet Cluster 2.3. Changes Where the Kind of Substance Stays the Same
Facet Cluster 2.4. Energy and Rates of Chemical ReactionsSlide6
Content of ClustersConceptual and foundational knowledge at the high school levelDescribing what is happening to matter at the atomic level rather than overgeneralizations to classify interactions among atoms and moleculesProblematic facets are stated to reflect student thinking
Grain size of facetsRefine facets and clusters based on how well they work for assessment and lesson design purposes
Facet Cluster Design PrinciplesSlide7
Elicitation QuestionsMotivate student interest and connect with prior experiencesFocus questions on making inferences about observable phenomena, when possibleAsk more questions, limit feedbackDiagnoser QuestionsUse paired questions to elicit multiple ways of reasoningFrame feedback in terms of what the student may know or understand to be true
Question Design PrinciplesSlide8
Paired Questions from Electrons ClusterQuestion 2.Where in the atom can electrons be found? (a) In electron clouds that surround the nucleus. [Paired] with question: 2a
(b) In electron shells that surround the nucleus. [Paired] with question: 2b
(c) In three dimensional (3D) regions determined by the electron's energy. [02](d) In circular orbits around the nucleus. [52]
Question 2a.Which statement best describes an "electron cloud"? (a:a) It is an area of space where an electron can probably be found.
[02][02](a:b) It is like a rain cloud with electrons suspended it in like droplets of water. [40][40]
(a:c) It is an area within which electrons move so fast that they create a cloud. [41][41]Question 2b.Which statement best describes an "electron shell"?
(b:a)
It is like a thin hard eggshell with electrons embedded in it.
[61][61]
(b:b)
It is a region where an electron can probably be found.
[02][02]
(b:c)
It is a thin flexible membrane with electrons embedded in it.
[62][62]
(b:d)
It is a path that the electron takes around the nucleus.
[52][52]
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Facet Clusters and FacetsExamined of student responses to open-ended questions to confirm presence of hypothesized facetsElicitation QuestionsExamined written response with >100 students per question to confirm that responses elicited a range of intended facetsDiagnoser QuestionsConducted think alouds of paper-pencil versions with small student sampleOnline versions will be piloted in classes of current high school chemistry teachers
LessonsPiloted in current high school chemistry classes to examine student engagement and to clarify instructions to teachers and students
Overview of Validation ActivitiesSlide10
Diagnoser System DevelopmentIncreased system reliability and securityImproved monitoring of system performanceDeveloped tools for editing learning goals, elicitation questions, developmental lessons, and prescriptive activities
System will allow authors to create, edit, and publish facets and question sets remotely via the web