

Unit 6 Foundations of Multiplication and
Division Grade 2 Math 


Description: In
Unit 6 students extend their understanding of a unit to build the foundation
for multiplication and division wherein any number can be a unit. Making
equal groups of “four apples each” establishes the unit “four apples” (or
just four) that can then be counted: 1 four, 2 fours, 3 fours, etc. Relating
the new unit to the one used to create it lays the foundation for
multiplication: 3 groups of 4 apples equal 12 apples (or 3 fours is 12). 

Louisiana Student Standards for Mathematics
(LSSM) 





Enduring Understandings: • There
are similarities between skip counting and repeated addition. •
Repeatedly adding the same quantity, using a grouping picture, or forming a
rectangular array are strategies for representing repeated addition
equations. ·
Arrays
one way of representing both repeated addition and skip counting. •
Explore and be able to explain even and odd numbers while using
manipulatives. • An
even number can be decomposed into two equal addends. •
Double addition facts assist in recognizing even numbers. 
Essential Questions: ·
How are odd and even
number lines identified on the number line? • How do I determine if a number is odd or
even? • What strategies can I use to tell if a number
is odd or even? • How are arrays and repeated addition
related? • How can rectangular arrays help us with
repeated addition? • How can we model repeated addition on the
number line? • How can we a model repeated addition
equation with an array? • How does skip counting help us solve
repeated addition problems? • What is an array? ·
What is repeated
addition? 


