Dear Science and Mathematics educators: on behalf of all of us working on this resource we would like to wish you a happy and productive year of 2015. UNESCO recently announced 2015 to be the International Year of Light and Light-Based Technologies. This is very exciting as this is another resource that can help teachers inspire the next generation of scientists. We are hoping that more than 1000 conceptual mathematics and science questions we have uploaded on our resource will also help you inspire your students in study science and mathematics. We continue to work on the resource and to address the requests of some of our users we are adding PDF ad well as PPT files, such as people using different platforms can see the problems and all the solutions. We hope that our resource will be useful to you and we are looking forward to hearing from you. Have a great year of 2015!