You can also talk about the length of routine activities, to help your child get a feel for duration. (psychologytoday.com)
Giving reasons for one's beliefs is a normal and routine activity in many areas of our lives: Why do you believe that the economy is improving? (religion-online.org)
The challenge for space suit design became also very obvious to me, as I performed routine activities like digging, writing, lifting etc. in a space suit with great difficulties. (marssociety.org)