This is a simple but effective center for helping students build word. I took our 25 Kindergarten sight words and divided them in half (minus the words "a" and "I"). I put each letter of each word in a different square. After laminating and cutting the squares out I take a single hole punch and punch a hole on the left and right side of the letters. The students then use the links to hook the letters together to make words. I purchased my links from Lakeshore.
For organizational purposes I color coded one half of the set blue and the other half green. I also include a matching color coded list of the words in each half. Then I place the green half in a green bag and the blue half in a blue bag. I purchased the bags from Walmart for 97 cents each.