Given two arrays, students select the one with the correct number of columns
A. Explore the concept of rows
B. Explore the concept of columns
D. Identify the number of columns and the objects within them
E. Identify arrays by the number of rows
F. Identify the number of rows and the objects within them
G. Label arrays with the number of rows and columns
H. Compose a repeated addition sentence based on an array's rows
I. Compose a repeated addition sentence based on an array's columns
J. Represent arrays as their number of rows and objects and as repeated addition sentences
K. Describe arrays in terms of their columns and rows