编辑以下句子，并修改其中的语法或单词使用错误。同样，您还需要解释一下您进行的更改。
Yesterday, me and her went to the park.
Yesterday, she and I went to the park. 

In the original sentence, "me" is used instead of "I" which is the correct subject pronoun. Also, "me and her" should be "she and I" as "she" is the subject of the sentence, not the object.