Wednesday, September 29, 2010

EDU330- elementary mathematics- Geometry (G)

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GEOMETRY is the study of of shapes and spatial relationships. It helps to tie in the children's experiences to relate mathematics to the real world.
Children use geometric and spatial ideas regularly to  problem solve and make decisions in their daily lives. Geometry and spatial sense are the fundamental component of math learning. They are the platform for the study of other topics in math and science.
Spatial visualization refers to the ability to mentally manipulate, rotate, twist, or invert a pictorially presented stimulus object, whereas spatial orientation refers to ability to comprehend the arrangement of elements within a visual pattern and the ability to understand and not to be confused by an object's changing orientation.
In implementing geometry lessons to children , teachers need to engage children actively involved in investigating interesting problems using concrete materials in a carefully and sequenced program. Example the preschoolers/ kindergartners focus on the appearance of shapes as a whole; therefore, they need to be given the opportunity to be involved in the manipulation of models of geometric figures- direct, visual exploration tactile. They must be given the chance to trace , draw, copy, combine and enlarge the physical objects.
Then it can be introduced to children using the software (example drawing of straight  lines, curve lines, triangles, circles, squares , playing the guessing games of the shapes, filling in the names of the shapes and changing the orientation of each shape to their likings using the software). 
This will enable the child to adopt the critique inductive and deductive arguments relating to geometric shapes and its relationships. Examine and describe the models and properties of the  two and three dimensional shapes that emerge.

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