Presentation on theme: "Impact of GeoGebra in Math Teacher’s Professional Development"— Presentation transcript:
1Impact of GeoGebra in Math Teacher’s Professional Development Ana EscuderJoseph FurnerFlorida Atlantic UniversityBoca Raton, FloridaTwenty-Third AnnualInternational Conference onTechnology in Collegiate MathematicsDenver, ColoradoMarch 19, 2011
2Warm-up/ThinkerA square barn measures 14 meters on each side. A goat is tethered outside by a rope that is attached to one corner of the barn:Suppose that the length of the rope is 8 meters. On how many square meters of land is the goat able to graze? What shape is formed?Suppose that the rope is made twice as long as in part a. On how many square meters of land is the goat now able to graze?Lastly, an addition to the barn was built making it rectangular with dimensions 14 meters by 20 meters and extended the length of the rope to 24 meters, on how many square meters of land is the goat now able to graze?
6Standards Mapped Graduate Education and Mentoring Program for Middle Grades
7Funded in 2004Partnership: FAU and Broward County Public SchoolsGoal: eliminate gaps in content and pedagogy between the university-level approach to a teacher’s math and science preparation and the daily requirements of a diverse standards-driven classroom.
8Method 8 semester long courses Standards based Master’s degree Incorporating math content, technology, and pedagogy
11Mental ModelsIntegration of prior knowledge and text information to construct an understanding of the situation described in the text (Reed, 2007)Mental model – dynamicMathematical model – static
12Cognitive complexity of Mathematics Connection of mathematical concepts.Solidified by their multiple representations and the connections among the multiple representations (Goldin, 2003).Mathematical representations are ultimately cultural artifacts, indicative of the technological developments of society (Kaput, Hegedus, & Lesh, 2007).As technology changes, it also changes what we do and what we can do as well as the way we handle traditional instructional practices (Milrad, Spector, & Davidsen, 2003).A mathematical idea takes on its initial meaning and further evolves as learners come into closer contact with a variety of related concepts and relations.
13Free, multi-platform, open-source dynamic mathematics software.Combines dynamic geometry, algebra, calculus, and spreadsheet featuresLarge international user and developer community with users from 190 countries.Markus Hohenwarter and FAU
29Impact Raised enthusiasm and changed teachers’ habits Provided effective pedagogical model for teachers.Modeling the StandardsModeling effective pedagogyGrowth in their ability to use technology with instructionTendency of teachers to incorporate technology in their classroom jumped from 27.8 percent to 64.3 percent.Large data set suggested a connection between the mathematical skills and activities the project promoted and student achievement.Changes in the district