What's a rekenrek? At Fernandez, it's building to learn

http://www.stevenspointjournal.com/story/news/local/2014/10/07/fernandez-students-build-learning-tools-district/16858431/

<blockquote>This week, Fernandez Center students are putting their talents to work to help their school district, completing an order of 500 math-number racks for Stevens Point students in kindergarten through third grade. The number racks are based on the rekenrek, a math tool developed in Holland that looks similar to an abacus and helps with addition and subtraction.</blockquote> You don't see the word "rekenrek" in news headlines, but this story from Wisconsin talks about how older kids in a school district make these math learning tools for younger students.