You have to try this one, it is a kid-favorite and super easy to execute.
Step 1: Select 4 pieces of colored construction paper and then collect 10 Lego pieces that match each one (ie. 10 yellow Lego pieces for a yellow piece of paper).
Step 2: Hide all of the Lego pieces in one room/area of your house and lay out the colored paper on a table or the floor nearby.
Step 3: Start the clock and have your kid(s) start hunting.
Step 4: Once they’ve found a Lego, they need to return it to the piece of paper that matches in color. See how long it takes them to find them all (tell them there’s 10 of each color so they can count to see if they’re missing any themselves), and then re-hide so they can try and get a lower time.
Once they’ve had enough of the game, challenge them to have a little quiet time and make a cool rainbow structure out of the Legos (while Mom drinks a cup of coffee…score!)