Have the kids take out the correct number of popsicle sticks that is on the pocket next to it. The kids are practicing counting and colors because they have to get out the correct number of sticks and they have to match the colored pockets.
Counting and Measuring with Lego: Preschool Maths Game - Good way to visually compare numbers - I would suggest making the corresponding numbers (like 5 and 15 or 8 and 18) the same color to help see the pattern relationship between the numbers (5 and 15 or 8 and 18 are separated by 10)
Practice one to one correspondence with these free counting mats! (#1-20
Fabulous site for easy and cute preschool printables. Super reasonable prices and easy to use. I can't say enough. So glad someone pinned this! There are some free ones too. Like the one pictured here.