fraction circles
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Fraction Circles. Building Understanding Dispelling Misunderstanding. Leading Math Success. - PowerPoint PPT PresentationTRANSCRIPT
Fraction Circles
Building Understanding
Dispelling Misunderstanding
Leading Math SuccessA focus on deep learning of particular
mathematics topics – through a variety of strategies, including working with concrete materials – leads to greater conceptual depth. (Ben-Chaim, Fey, Fitzgerald, Benedetto, & Miller, 1998; Fletcher, Hope & Wagner, 2001; Siemon et al., 2001
Introducing Fraction Circles
Virtual Fraction Pieces
http://matti.usu.edu/nlvm/nav/vlibrary.html
Developing Understanding
• Each person wants to eat one half of his pizza. How many pieces must each person eat? Record your answer in fractional form.
Dispelling Misunderstanding
• When adding fractions, Joey adds the numerators and the denominators as follows:
1
4
1
3
2
7
• How can you use fraction circles to dispel this misunderstanding?
Reflection
• Timed Retell
• How can you use fraction circles to show the relationship among fractions, decimals, and percentages?
• Person A: Answer the question.• Person B: Retell what you just heard.
Next StepsExplore fraction activities on the
National Library of Virtual Manipulatives website.http://matti.usu.edu/nlvm/nav/vlibrary.html
Journal Writing
Now that I’ve worked with
fraction circles I feel…
Leading Math Success
“The key to the successful use of manipulatives lies in the bridge - which must be built by the teacher - between the
artifact and the underlying mathematical concepts.”