visual algebra with technology
DESCRIPTION
Visual Algebra with Technology. Don Allen. Using computers to …. Construct knowledge Validate knowledge Discover knowledge Simulate knowledge. OK, what’s the difference?. “What is visual knowledge?”. Contents. The issues of algebra Using data Building a model Types of assessment. - PowerPoint PPT PresentationTRANSCRIPT
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Visual AlgebraVisual Algebrawith with
TechnologyTechnology
Don Allen
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Using computers to …Using computers to …Construct knowledgeValidate knowledgeDiscover knowledgeSimulate knowledge
OK, what’s the difference?
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“What is visual knowledge?”
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ContentsContents
The issues of algebraUsing dataBuilding a modelTypes of assessment
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“What is your visual IQ?”
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Visualize the conceptVisualize the concept
Physical examplesDiagramsCharts of data
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“A first step to learning is too agree there is something
worthwhile to learn.”
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“Getting the buy-in.”
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“We (the state schools) are the McDonalds of education. We deliver a decent education at a reasonable price.”
Public education …Public education …
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Using dataUsing data
(1) Find data illustrating the points you want to make.
(2) Find an image illustrating the point you want to make.
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Using data (1)Using data (1)
Insert the data into the spreadsheetManipulate the data to the desired form.Create a chart Further analysis
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Using data (2)Using data (2)
Load the image into DigitizerSet coordinates and scale factorsDigitize Using data (1)Comparative analysis.
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Building the modelBuilding the model
Clarify dependencies/variablesIdentify system parametersDetermine the unknownsDefine the relationships – use operationsFormulate an equation to be solved or
evaluated
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“What is visual knowledge?”
Visual knowledge is an intuitive understanding of variations and dependency according to visual representations of the information.
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What processes are good for What processes are good for visualizationvisualization
Things you can see - staticThings that move - dynamicThings you can feel? Hear?Things you can touch?
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“What is your visual IQ?”
Visual IQ measures one’s level of analytic knowledge arising from visual information.
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What about drill?What about drill?
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“The curriculum is a mile wide, but just an inch deep.”
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What about error?What about error?
Error is a part of everything realBut how much is error?Overcoming errorSmoothing – but how?
Averages Least squares Moving averages
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What do I want?What do I want?
When a student looks at the McDonalds arches, he/she sees a curve not a parabola and know why.
When a student looks at a common drinking fountain, he/she sees a parabola curve and knows why.
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Formation of a coalitionFormation of a coalition
Dedicated to finding visual interpretation of concepts from algebra and calculus
Willing to try new materials with assessment
Willing to develop new materials – using technology
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