NUMBER+SENSE

=NUMBER SENSE=

__Second graders at the end of the year should master the following number sense objectives:__
 * Represent whole numbers in groups of hundreds, tens, and ones using base ten models and write the numeral representing the set in standard and expanded form.
 * Identify the place and the value of a given digit in a three-digit numeral.
 * Represent the composition and decomposition of numbers in a variety of ways.
 * Compare and order numbers using the terms, greater than, less than, or equal to, and the symbols, >, <, and =, using various strategies, including the number line.
 * Identify and describe even and odd whole numbers.
 * Demonstrate quick recall of addition facts (up to 10 + 10) and related subtraction facts.
 * Model addition and subtraction of two- and three-digit whole numbers (sums and minuends to 1000) in a variety of ways.
 * Write a story problem that relates to a given addition or subtraction equation, and write a number sentence to solve a story problem that is related to the environment.
 * Demonstrate fluency with two- and three-digit addition and subtraction problems, using efficient, accurate, and generalizable strategies that may include mental arithmetic and standard algorithms and mental arithmetic, and describe why the procedures work.
 * Use the mathematical relationship between addition and subtraction and properties of addition to model and solve problems.
 * Represent multiplication with equal groups using concrete objects and skip counting by twos, fives, and tens.
 * Represent division as fair shares using concrete objects or pictures.