Unit 7:  Arrays, Equal Shares, and Adding or Subtracting Lengths

*  continue to use fraction language to describe partitions of shapes into equal shares

Standards covered:
* Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns. (CC.2.OA.4)

*Partition a rectangle into rows and columns of same-size squares and count to find the total number of them. (CC.2.G.2)

* Partition circles and rectangles into two, three, or four equal shares and describe the shares using the words halves, thirds, fourths.  Recognize that equal shares of identical wholes need not have the same shape. (CC.2.G.3)
* Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units.  (CC.2.MD.5)

* Represent whole-number sums and differences within 100 on a number line diagram.  (CC.2.MD.6)