Georgie is sooo good on her walks.

No pulling, she stops and sits before I cross the street, no going after birds, cats, other dogs like Daisy did. I read you are only supposed to walk 5 minutes for each month of age. My question is does that mean at a time or only once daily. I try to walk her 25 minutes twice a day. Also my grand daughter is with me for the summer and she like to jog with her when we walk. Is that OK for a pup? (She is 7 so they don't jog at an adult speed).
The weather is heating up so I am going to have to take her really early in the morning. I guess it beats the cold wind.