Keep score! Most MLB parks provide free scorecards! You can print your own Cubs scorecard here or a Sox scorecard here. There are a lot of YouTube video tutorials on score keeping or learn the basics at mlb.com.
Track your favorite player's stats! There is no other sport that uses statistics like baseball. Here is a list of all the different stats with explanations.
Plan a dream road trip for your family! Research a drive-able destination and plan the route. Include estimated arrival times. How much gas you will need? How much will gas cost? Where will you stay? How much will hotels cost? What activities will you do? How much will food cost? Figure out the total cost of the trip and plan how much you would need to save each week to go on this trip next summer! Roadtrippers.com has some great ideas and tools to get you started.
Go on a nature hike! Look for repeated patterns in flowers or pine cones! Learn more about math found in nature by watching this video.
The Museum of Science and Industry in Chicago even has an exhibit called Numbers in Nature! The Museum of Science and Industry offers free entry to Illinois residents on certain days. Please check here more more information.
Do you get an allowance or birthday money? Track your income (money you receive) and your expenses (money you spend) to see where your money goes. Or better yet, include a savings goal!
Does your family have a food budget? Help your family plan a food budget by tracking food spending and calculating savings when using coupons or sales!
As you grocery shop, keep an estimate of the total cost of the items in your grocery cart. Make sure you remember to calculate discounts or coupons! Try calculating the approximate tax (Bolingbrook and Romeoville both have 8.5% sales tax).