Have you ever gotten frustrated with your adopted math textbook because it doesn't correlate with common core, leaving you to look here and there for supplemental resources? Me, too! I have developed a packet to satisfy common core math standards 2.OA.3 (Determine whether a group of objects (up to 20) has an odd or even number of members (by pairing objects or counting them by 2’s); Write an equation to express an even number as a sum of two equal addends; Work with equal groups of objects to gain foundations for multiplication) and 2.OA.4 (Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and 5 columns; Write an equation to express the total as a sum of equal addends).
Six Lessons on Identifying Even and Odd Pairing Numbers
Six Lessons on Identifying Even and Odd Counting By 2's
Six Lessons on Adding Doubles to Get Even Sums
Six Lessons on Arrays
Enjoy, and thanks bunches! A great addition to any sweet second grade math classroom! :)