【國二數學】B4C1U2 等差級數

基礎篇

【國二數學】基礎B4C1U2.27_P1_找老師口試

https://www.youtube.com/watch?v=lIAYsZFSz8g

【國二數學】基礎B4C1U2.28_E22_聽完做E22

https://www.youtube.com/watch?v=cy3NcbxFhtE

【國二數學】基礎B4C1U2.29_E23_聽完做E23

https://www.youtube.com/watch?v=s9UFX56qOnU

【國二數學】基礎B4C1U2.30_E24_聽完做E24

https://www.youtube.com/watch?v=MFx5GBAMclc

【國二數學】基礎B4C1U2.31_E25_聽完做E25

https://www.youtube.com/watch?v=e_FLh99-O4s

【國二數學】基礎B4C1U2.32_E26_聽完做E26

https://www.youtube.com/watch?v=sn6Wbh4BYbM

【國二數學】基礎B4C1U2.33_E27_聽完做E27

https://www.youtube.com/watch?v=GBJOyTUn7AY

【國二數學】基礎B4C1U2.34_E28_聽完做E28

https://www.youtube.com/watch?v=UMg8qe4LD0M

【國二數學】基礎B4C1U2.35_E29_聽完做E29

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

【國二數學】基礎B4C1U2.36_E30_聽完做E30

https://www.youtube.com/watch?v=Einauu2giWQ

【國二數學】基礎B4C1U2.37_P2_找老師口試

https://www.youtube.com/watch?v=EDbaPaHwli4

【國二數學】基礎B4C1U2.38_E34_聽完做E34

https://www.youtube.com/watch?v=O3usm6bTDJg

【國二數學】基礎B4C1U2.39_E35_聽完做E35

https://www.youtube.com/watch?v=8hRVpy-iFEo

【國二數學】基礎B4C1U2.40_E36_聽完做E36

https://www.youtube.com/watch?v=l2yxTFftzjs

【國二數學】基礎B4C1U2.41_E37_聽完做E37

https://www.youtube.com/watch?v=P50kxmbL2dQ

【國二數學】基礎B4C1U2.42_E38_聽完做E38

https://www.youtube.com/watch?v=usaA4i-33hs

解題篇

【國二數學】解題B4C1U2.43_E31_聽完做E31

https://www.youtube.com/watch?v=ll1n-QzYqeY

【國二數學】解題B4C1U2.44_E32_聽完做E32

https://www.youtube.com/watch?v=1HTiiXLvzbY

【國二數學】解題B4C1U2.45_E33_聽完做E33

https://www.youtube.com/watch?v=evTjkHF53Fo

【國二數學】解題B4C1U2.46_E39_聽完做E39

https://www.youtube.com/watch?v=r2jVq8gz0jg

【國二數學】解題B4C1U2.47_E40_聽完做E40

https://www.youtube.com/watch?v=VO0x6nUN014