Students explore the concept of equal columns. They place objects into columns, then identify the number of columns and objects within each column
A. Explore the concept of rows
C. Identify the number of columns and the objects within them
D. Identify the number of rows and the objects within them
E. Compose a repeated addition sentence based on an array's rows
F. Compose a repeated addition sentence based on an array's columns
G. Represent arrays as their number of rows and objects and as repeated addition sentences
H. Describe arrays in terms of their columns and rows