Sushi said:DP126: Teacher Candice of the Trainers' School!
Romaji: Trainers' School no Suzuna-sensei!
Airdate: May 7th, 2009
Script: Atsuhiro Tomioka // Animation: Kazue Kinoshita
Upon reaching Snowpoint City, Ash and his friends are welcomed by the Gym Leader of the Snowpoint Gym, Candice. The group accepts her offer to show them around the city; the first place they are lead to is a Trainers' School where Candice works as a teacher...
Source: NewType
I've added the summary for the episode and took the liberty to translate the other two as well. There was one for the Tatsunami ep too, but it's old news now, really.
DP124: Pokémon Ping Pong Tournament! Ambipom Does its Best!!
The Pokémon Ping Pong Tournament is an event where Pokémon and Trainer build a pair and hit a ball. Ambipom, who has teamed up with Dawn, displays a powerful smash using its two tails. The former champion, Ou, witnesses this by coincidence and, saying that Ambipom has a good sense for Pokémon Ping Pong, guarantees its success...
Script: Junki Takegami // Animation: Masaaki Iwane
DP125: Cherubi! Courageous Battle?!
In Komako Town, Ash and his friends meet a slightly unusual girl called Marilyn, who says she only loves cute Pokémon. After criticizing Piplup numerous times, she challenges a very angry Dawn. They start battling right away, but for some reason, Marilyn does not give any attack orders to the "Cherry Pokémon", Cherubi...
Script: Junki Takegami // Animation: Izumi Shimura
And the Eteboth speculation continues...