- This PDF File - The mathematics curriculum for Kindergarten school students in the United States is designed to build a strong foundation in basic mathematical concepts and skills. Kindergarten Unit 1 : Number Sense and Counting - Recognize, write, and count numbers up to 20. - Understand the concept of one-to-one correspondence. - Compare numbers using terms like more than, less than, and equal to. This is everything you need to print and go to teach these concepts to a variety