Free Teacher Resources. Connecting educators to what works. K-12 Education Tips & Strategies That Work. Technology to Enhance Teaching and Learning in the Classroom. Cool Tools for 21st Century Learners. Free Technology for Teachers. Learning is Messy - Roll up your sleeves and get messy. A Class of Six Year Olds Inviting the World into Their Classroom. A Year of Reading. Cathy Jo Nelson's Professional Thoughts. ScienceFix - Science Fix.