# Mind map for the van Hiele Model of Geometric Thought. Elearning.

 Instructions: To Fold/Unfold: click a branch. To link: click a red arrow. To see a note: Hover over a note button. To Pan: click and drag the map canvas.
 Mind Map Description The interactive Mind Map for the van Hiele Model of Geometric Thought is an image-centered diagram that represents connections between various topics and concepts related to van Hiele theory.   Van Hiele Model of Geometric Thought In math education, the van Hiele model is a theory that describes how students learn geometry. The theory originated in 1957 in the doctoral dissertations of Dina van Hiele-Geldof and Pierre van Hiele (wife and husband) at Utrecht University, in the Netherlands. The Soviets did research on the theory in the 1960s and integrated their findings into their curricula. American researchers did several large studies on the van Hiele theory in the late 1970s and early 1980s and Pierre van Hiele published Structure and Insight in 1986, further describing his theory. The model has greatly influenced geometry curricula throughout the world. In the United States, the theory has influenced the geometry strand of the Standards published by the National Council of Teachers of Mathematics and the new proposed Common Core Standards. Source: Wikipedia, Van Hiele Model. Van Hiele levels  are a product of experience rather than age. In other words, a child must have enough experiences (classroom or otherwise) with these geometric ideas to move to a higher level of sophistication. Using the van Hiele model as a basis, the users will know how students understand geometric concepts and how to determine the reasoning levels of these students. Level 0. (Basic Level) Visualization: children identify prototypes of basic geometrical figures (triangle, circle, square). At this age (or stage), children might balk at calling a thin, wedge-shaped triangle (with sides 1, 20, 20 or sides 20, 20, 39) a "triangle", because it's so different in shape from an equilateral triangle.   Level 1. Analysis: children can discuss the properties of the basic figures and recognize them by these properties, but might still insist that "a square is not a rectangle."   Level 2. Abstraction: learners recognize relationships between types of shapes. They recognize that all squares are rectangles, but not all rectangles are squares. They can tell whether it is possible or not to have a rectangle that is, for example, also a rhombus. Students need to be comfortably at this level to be well prepared for a high school geometry course (though many students are not). One of our goals in this class will be to consider ways that we can help children progress to a level 2 understanding of some important geometric topics.   Level 3. Deduction: learners can construct geometric proofs at a high school level. Learners should be exposed to deduction at a pre-high-school level in the context of level 2 discussions (what properties tell us that all squares are also rectangles), but the primary consideration of level 3 work will not be discussed in this course.   Level 4. Rigor: learners understand how geometry proofs and concepts fit together to create the structure we call geometry. This is the level at which most college geometry courses (for math majors) are designed. Mind map Instructions To see a note, hover over a note button above. To scroll the mind map above, click and drag the map's background and move it around , or click on background and use the arrow keys. To link to another page, click a link button above. To Fold/Unfold a node, click the node or right click a Node and select Fold/Unfold all from Node. To Zoom In or Out: click the map's background and move the mouse scroll wheel up or down. Buttons above: Search, Go to, Zoom in or CTRL '+', Zoom out or CTRL '-', Reset (center), Shadow On/ Off, Last updated: October 11, 2010
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