# Curriculum for Grade 4

## Driven by Pedagogy, Supported by Technology (and not vice versa),

Happy Numbers will make your math centers deliver results.

### MODULE 1. Place Value, Rounding, and Algorithms for Addition and Subtraction

Students work with whole numbers to 1,000,000 using number disks and the place value chart. They develop understanding of magnitudes of 10, as well as how multiplication and division relate to place value. Students also master the skill of recording large numbers, both in standard form with the appropriate commas and in expanded form.

A. Relate tens to hundreds to thousands by magnitudes of 10 (Part 1)B. Relate tens to hundreds to thousands by magnitudes of 10 (Part 2)C. Exchange disks into the millions using a place value chartD. Multiply to show powers of 10 on a place value chartE. Complete multiplication expressions based on powers of 10F. Arrange place value labels in orderG. Divide to show powers of 10 on a place value chartH. Complete division expressions based on powers of 10I. Represent values of disks as numbers in standard form with commasJ. Identify comma placement in numbers to one millionK. Convert numbers from standard form to expanded formL. Identify the value of a digit in a given number