Go to Children-->Parent Pins. At the top use the Email Pins to Parents button. This will email the pins to every Parent/Guardian with an email on file. (Note: you will receive a copy of each pin email sent to every family for your records)
You can send them to specific families, by scrolling down the list and clicking the envelope icons next to each family.
You can also download a spreadsheet of all the pins using the Download button. You can print this excel file if needed.