IXL Learning, a developer of personalized learning products, completed the acquisition of Teachers Pay Teachers, a catalog of educator-created learning content and tools for interactive digital instruction. Financial terms were not disclosed. "We are so happy to welcome Teachers Pay Teachers into the IXL Learning family. TPT is an iconic brand in education, and it offers a unique opportunity for teachers to learn from each other and become entrepreneurs. We look forward to redoubling TPT's efforts toward building a special home for educators centered around expertise, trust and a deep devotion to learners' success," Paul Mishkin, IXL Learning CEO.