For the task I have choose option three regarding sharing an activity to help primary age children exploring public and private sharing. Online I found an activity of students making their teacher an online profile, they explored what personal information the teacher should share. I would adapt this so a student will make a profile fo themselves on a worksheet, I would explain that a new kid friendly platform came out and they have to create a profile. After they have made their own we would discuss the information the students shared and wether it is okay to be public or if the information should have stayed private. I have attached an image of the original activity.