## Area of Equilateral Triangle

The lesson is prepared by considering the van Hiele Model of geometric thought. The students are assumed that they are at the level “Deduction”. Therefore, what is expected from students is proving corollaries and theorems by using the definitions, axioms, postulates or other corollaries and theorems. In the lights of these expectations, the lesson helps students to prove the corollary of the area of equilateral triangle by using the general theorem of area and properties of equilateral triangle. Moreover, students use the corollary with previous knowledge to prove another theorem that is written in the objectives in this lesson. In addition to this, formal mathematical language is constituted important part of the level of deduction and so this lesson gives importance to write the proofs clearly with correct mathematical language.

lesson_plan_for_micro-area_of_triangle.doc | |

File Size: | 39 kb |

File Type: | doc |

activity_area_of_equilateral_triangle.doc | |

File Size: | 32 kb |

File Type: | doc |