Teacher Editions and eBooks allow teachers todevelop critical math concepts with routine lessonplans, integrated project-based learning, and a guide forfacilitating differentiated learning in the classroom.

The Number Worlds, Level J Teacher Edition provides lesson plans, Project Based Learning activities , and purposeful activities to help students develop conceptual understanding and computational fluency as they actively apply concepts.​ The TE also includes a differentiated learning guide.

Number Worlds Level J Teacher Materials Package includes: Teacher Edition Practice BLM Book Playing Card Sheets Placement Test Guide Implementation Guide English Learner Support Guide Placement Test Book Games and Manipulatives (for 5 students) 6-year Online Teacher Subscription

Assessment tools allow teachers and administrators tocorrectly place and monitor at-risk students. A variety ofassessment options evaluate student proficiency, informinstruction, and visually track progress.