A small group of us are working on an OER for OLPC<http://wiki.sugarlabs.org/go/Replacing_Textbooks>and have chosen the topic; Fractions
Here is where we need your help: - - Identify Models of Fractions and how we can present these different models in concrete forms as a kind of Fraction Exploratorium - Identify common mis-conceptions learners have about fractions and using them and identify ways of addressing these mis-conceptions. - Identify Activities we can use to teach fractions (I spend most of my time in Etoys, but we should use Turtle Art, Scratch and others) - Identify existing lessons we can refer to or re-render (ex: http://illuminations.nctm.org/LessonDetail.aspx?ID=U152) - Identify virtual manipulatives needed (I have cuisenaire rods and pattern blocks in Etoys, here is a nice one at Illuminations<http://illuminations.nctm.org/activitydetail.aspx?id=80> ) - Identify physical manipulatives that can be used (and id how can be easily and cheaply created by kids/teachers) - Identify no computer, concrete activities kids can do (ex: 1) Fold a paper in half and cut, 2) Label as 1 piece of X needed to make a whole sheet; repeat) - Create/Identify a lesson, manipulative, blog post or video each day. Okay ambitious, but do-able (for short sprints). It helps me keep the perfect from being the enemy of the good and gets me focused and moving. I look at it as the equivalent of some writers practice of writing something every day. Also am working on creating "A Fraction A Day<http://mrstevesscience.blogspot.com/search/label/Fraction%20A%20Day>" well almost everyday, and guest posts/ideas/suggestions for improvement etc are welcome. Thanks, Stephen
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