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by: William Struck and Randy Yerrick
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Acid base reactions
Conservation of mass
Disciplinary Core Ideas
Disciplinary Core Ideas in Physical Science
Oxidation reduction reactions
PS1.B: Chemical Reactions
PS1: Matter and Interactions
Science and Engineering Practices
Science as Inquiry
Science process skills
Scientific habits of mind
SEP1: Asking Questions and Defining Problems
SEP2: Developing and Using Models
SEP3: Planning and Carrying Out Investigations
SEP4: Analyzing and Interpreting Data
SEP5: Using Mathematics and Computational Thinking
SEP6: Constructing Explanations and Designing Solutions
SEP7: Engaging in Argument from Evidence
SEP8: Obtaining, Evaluating, and Communicating Information
Three Dimensions of the Framework and/or NGSS
Using scientific equipment
Type Journal ArticlePub Date 10/1/2013Stock # tst13_080_07_44Volume 080Issue 07
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Nice mathematical help
I like how the structure builds upon something that is easy for most students to understand and works the model into using it for the more complicated chemistry questions. I think I might b... See More
I like how the structure builds upon something that is easy for most students to understand and works the model into using it for the more complicated chemistry questions. I think I might be able to use this in my online chemistry class as an option.
Another Stoichiometry model.
Bicycle assembly, lunch packing and recipes have all been used to introduced stoichiometry. The piece often missing from these models is the conversion from a count of number relationship (a... See More
Bicycle assembly, lunch packing and recipes have all been used to introduced stoichiometry. The piece often missing from these models is the conversion from a count of number relationship (atoms or moles) to a mass relationship (g). Here, using bicycle assembly as the model, a conversion is added but it is distinct for each component in the assembly (frames/case, wheel/box and grips/Kg). This may be confusing to students. The addition of a conversion makes the model more complete, though one may need to add some explanation about the use of different reference standards for each bicycle component.
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