If you are reading this, you are probably already familiar with the By Design textbook series and my have already heard about the online resource known as By Design Labs. We have been very careful about putting this in the hands of Teachers until we felt that it was ready for some serious test driving. We are happy to announce that the full working model for 5th Grade is ready to use. We are hoping that some of you will be willing to give us helpful feedback and even practice making or editing the labs to suit your situation. Let us know what you think.