If you don't want the kids playing in the street, or if bad weather arises, you have many options. If they are old enough, they can learn about measurements while helping you get your cooking done. They can also help, in many cases, prepare dinner. Filter out all of the junk on television by investing in some movies or educational videos, depending on age. These will interest your children and ensure that they are viewing appropriate material because you get to screen it.
Children also love to work with their hands and create things.
Toss those crayons and papers aside and head to the craft store. Many stores have kits where all of the pieces and materials are included. They are often inexpensive and fun for you and your child to do together. Most children do not get enough exercise. Take the kids out for a walk or a bike ride.