She's also jealous of Anne's relationship with her son, wanting Peter to confide in her rather than in Anne. However, Mrs. van Daan does have a few strong points. She occasionally can be reasonable and back down from fights, is generally neat and tidy, and is often easier for Anne to approach than her own mother.
She asked if she was bad at any game and a person threw a ball at her and she didn't catch it so she asked why he threw the ball and she became aware at his trick answer.