Your first 1-on-1 with a child
Open the child's page. On a wide screen they are in the family list on the left of Home, oldest first. On a phone that list sits under what to do now. Family in the nav is the same list.
The button says Start a 1-on-1 with their name. It is about 20 minutes: how the week went, what is on their mind, a look at their goals, and anything they need from you. They do not need an account. Goals are optional.
Next time it is on Rhythms, under One-on-ones. Press Start meeting there.