日本で英語を上達させる

My husband and I are same age. We have been married for twelve years. He worked at the computer system management company. He is very hard worker. He likes traveling by train. Today he is traveling alone.
We have two daughters. My first daughter is an elementary school student of 6th grade. She will be a junior high school student at April. She likes reading books, for example, Harry Potter series,Magic Treehouse series and Japanese comic books.
And my second daughter is a second-grade elementary school student. She likes riding a monocycle and drawing a picture. She doesn't like practicing Chinese characters. After going home, she is practicing them. it is very difficult for her to retain (remenber) some Chinese characters.