台灣黑皮歐巴桑的學習祕笈

中英文版(國三上數學)  )  推理證明： 推理與證明

V563 特殊三角形的三心～3 2三角形的外心、內心與重心～第五冊第三章～南一版
https://www.youtube.com/watch?v=NWdmjSOypoU

國中_數學_證明與推理_正三角形的外心、內心、重心共點
https://www.youtube.com/watch?v=-F4B1Uf3iTg

國中_數學_證明與推理_三角形外心、內心、重心的比較
https://www.youtube.com/watch?v=Cf3qyWBnfU0

 黃豆老師國中數學DVD會考數學三心外心內心重心
https://www.youtube.com/watch?v=m_o5YSqa3_8

國中第五冊-三心問題
https://www.youtube.com/watch?v=57wkUDXAoMY

三心-重點提示(全).mpg
https://www.youtube.com/watch?v=dzgg4ALtLF0

【觀念】外心、內心、重心整理
https://www.youtube.com/watch?v=iDlvBLSIobg

【觀念】正三角形的外心、內心、重心共點
https://www.youtube.com/watch?v=fgnYd2G7k54

【林晟數學－國5冊】試看第8集 三角型的外心、重心、內心(中)
https://www.youtube.com/watch?v=WYMwPpx6j0k

國中升高中 數學 賴政泓 幾何證明與三角形的心六 1 幾何證明 1080 0314
https://www.youtube.com/watch?v=fxEjGGh6O5M

國中升高中 數學 賴政泓 幾何證明與三角形的心六 2 三角形的心 1080 0314
https://www.youtube.com/watch?v=EouZqEnzpfQ

國中升高中 數學 賴政泓 幾何證明與三角形的心六 3 外心、內心與重心的相關問題 1080 0314
https://www.youtube.com/watch?v=v-EahUy0_b8

數學科 單 特殊三角形的三心
https://www.youtube.com/watch?v=u_It28Lhgxg

國三上內心到三角形三邊等距離與共點的證明
https://www.youtube.com/watch?v=a6tMgqSnmLg

黃豆老師國中數學DVD會考數學三心外心內心重心
https://www.youtube.com/watch?v=m_o5YSqa3_8

Centroid Circumcenter Incenter Orthocenter
https://www.youtube.com/watch?v=QBM7B7nTCrM

Meaning of Circumcenter, Incenter and Centroid
https://www.youtube.com/watch?v=QyNdlo9gt4Q

Centroid, Circumcentre, Incentre and Orthocentre of an Equilateral Triangle
https://www.youtube.com/watch?v=WT1md_BWqyA

circumcenters incenters centroids orthocenters
https://www.youtube.com/watch?v=zn1xh_asz0E

Proving that the centroid is 2-3rds along the median | Geometry | Khan Academy
https://www.youtube.com/watch?v=i0VS3eEGjiQ

Finding Circumcenter, Centriod, Incenter, Orthocenter Coordinates Review
https://www.youtube.com/watch?v=e0r9FEWI3sI

Day 5 - Centroid Problem Find x
https://www.youtube.com/watch?v=olV6IhXVWvo

Euler Line Definition
https://www.youtube.com/watch?v=l1MDdTCGWRo

The Euler Line
https://www.youtube.com/watch?v=tCxhqlfN4g0

EULER LINE
https://www.youtube.com/watch?v=7t75ieiGvKw

Prove: Angle Bisectors of a Triangle are Concurrent
https://www.youtube.com/watch?v=TnJJWymMvJE

部分資料來源: 學習吧
https://www.learnmode.net/knowledge/version?p=36#%E7%BF%B0%E6%9E%97%E7%89%88_%E5%9C%8B%E4%B8%AD%E6%95%B8%E5%AD%B8_%E4%BA%8C%E4%B8%8A(%E6%95%B8%E5%AD%B83)