They feel anxious about getting enough love and feel unsure about how to behave. For children to feel better and behave better, parents need to support each other, show their children love and affection, and provide effective discipline. Both parents need to provide love and discipline, sometimes referred to as love and limits, love and truth, kindness and firmness, and so on. Mothers need to be both loving and effective disciplinarians. Fathers need to be able to talk about their love, demonstrate their affection, and, when necessary, administer discipline.
Love comes first.
Discipline is second. When children feel loved and a sense of belonging, they require less discipline. It's as simple as that. If your children are misbehaving frequently, start by loving and encouraging them more. Then find more effective ways to discipline.