Erev Rosh Chodesh Sivan

There is a tefillah for good children printed in the Shelah HaKadosh. The Shelah writes, "My heart tells me that the best time to say this tefillah is erev rosh chodesh Sivan, the month we received the Torah and became Hashem's children. Parents should fast on this day and do teshuvah. They should cleanse their homes in the areas of isur v'heter, tumah v'taharah, and all matters. They should also give tzedakah to worthy, poor people."

While excessive fasting isn’t recommended in our times, the other directives from the Shelah to merit good children are always applicable. On erev rosh chodesh Sivan, parents should daven for their children, examine their deeds, do teshuvah, and give tzedakah to the poor.