(1)根號與平方根(二次方根)_【觀念】

https://www.youtube.com/watch?v=NaKBAhUumss&list=PLF690C558BE3ADEC2

(2)完全平方數的介紹與判別

https://www.youtube.com/watch?v=VhmigkvXCrQ&list=PLF690C558BE3ADEC2&index=2

(3)平方與平方根_【觀念】

https://www.youtube.com/watch?v=wRbXP1_Ivig&index=3&list=PLF690C558BE3ADEC2

(4)平方根法則與去平方根

https://www.youtube.com/watch?v=3wj88H14dUg&index=4&list=PLF690C558BE3ADEC2

(7)平方根─比較大小

https://www.youtube.com/watch?v=pE6Oh8xs9z0&index=4&list=PLF690C558BE3ADEC2

(8)求平方根的近似值─電算器法

https://www.youtube.com/watch?v=r8hTrETjZfM&list=PLF690C558BE3ADEC2&index=6

(10)求平方根的近似值─查乘方開方表法

https://www.youtube.com/watch?v=DVLqGqGPnR0&list=PLF690C558BE3ADEC2&index=7

(6)數的架構─有理數與無理數

https://www.youtube.com/watch?v=Z460moyzpG4&list=PLF690C558BE3ADEC2&index=8

(5)例子─平方、平方根與平方根法則

https://www.youtube.com/watch?v=c-Rh8vds-e4&list=PLF690C558BE3ADEC2&index=9

(9)求平方根的近似值─十分逼近法

https://www.youtube.com/watch?v=egGgUNJiEvk&list=PLF690C558BE3ADEC2&index=10

(1)根式的介紹與簡記

https://www.youtube.com/watch?v=ebe_YsdwybE

(2)根式的運算規則─交換律、結合律、分配律

https://www.youtube.com/watch?v=XYEHEoryES0

(3)根式的乘除運算與代數式之推導

https://www.youtube.com/watch?v=r91lBPc80eo

(4)根式的化簡與最簡根式

https://www.youtube.com/watch?v=uhJFU0qI_wk

(5)分數最簡根式與分母有理化

https://www.youtube.com/watch?v=JFL3lQDhm8k

(6)同類方根與根式的加減運算

https://www.youtube.com/watch?v=VBC7SYOtacU

(7)利用平方差公式有理化分母

https://www.youtube.com/watch?v=LRpf25tD0IM&list=PL3A571225CE686744&index=7

(8)例題一─根式的四則運算與化簡

https://www.youtube.com/watch?v=HX-pj79H8ls&index=8&list=PL3A571225CE686744

(9)例題二─根式的四則運算與化簡

https://www.youtube.com/watch?v=942QOqar-9M&list=PL3A571225CE686744&index=9