This is where you can begin browsing all of our available Kindergarten math lessons — The EngageNY mathematics curriculum is a project of the New York State Education Department, which strives to provide leadership for a system that yields the best educated people in the world. EngageNY Math is now one of the most widely-used and standards-aligned curricula in the United States, and was ranked by EdReports.org as one of the highest quality full-grade curriculum providers available.