There is no one answer to this question as different children will learn best in different ways. However, some tips on teaching kids lines could include reading the lines out loud with them, having them repeat the lines back to you, writing the lines down for them or acting out the scene with them. You could also try using flashcards or memory games to help them memorize their lines. Whatever method you choose, it is important to be patient and remember that each child learns at their own pace.