If you are like me, you love Lakeshore Learning–especially when they have a sale! Last year, I grabbed my first UNLOCK IT set (Matching Numbers). It was fun…for a couple days. I found myself wishing it had more options; more ways to develop 1:1 correspondence.

Instead of just wishing, I created this expansion pack:

All you need is a little clear Velcro (just one dot per side of the lock). Cut it into quarters and place it in the corners of the lock. Do the same with the fuzzy Velcro on the backs of the 1:1 images.

Add a ticket for a bit of extra fun! Your students will work to make the most matches.

This expansion pack includes a bunch of 1:1 correspondence that you can use any day of year. Each set has images for 1 to 20, except the analog hours and dominoes.

It will be on sale this weekend. So, grab it while its 50% off!