Funded by the National Science Foundation and successfully field-tested in a variety of settings, the materials presented give teachers the opportunity to grow as learners for the classes they teach.When answering parts (b) and (c). think about how triangle (iv) differs from the first three. Investigate the relationship between the vertices and see if you can predict when the formula from part (a) will fail to work. ... It requires a little bit of algebra. using the slope of the opposite side (which can be determined since you know the coordinates of its endpoints). ... COORDINATE FORMULA FOR THE AREA OF A TRIANGLE (a) Use the (horizontal) circumscribed rectangle method to derive aanbsp;...

Title | : | Ways to Think About Mathematics |

Author | : | Steve Benson, Susan Addington |

Publisher | : | Corwin Press - 2004-10-05 |

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