Idea...create a math scavenger hunt as an end if the year review.
Make this beautiful, sparkly, stretchy slime that looks just like the swirls of a galaxy and keep your preschooler entertained for hours! Borax-free recipe
Interesting ways to entertain your little ones. Montessori ideas - TODDLER ACTIVITIES
Candy cane fishing
'100 Ways to entertain a toddler'. This Mom has fun (and funny) ideas to interest her toddler. She rates each with a grade to it's success. Awesome list!
Indoor Snowball Toss Game. - perfect for those wintery indoor recess days!
Toddler Approved!: Feed the LEGO Monsters: A Sorting and Building Game for Kids