Grade 3 Module 1 Lesson 7

Grade 3 Module 1 Lesson 7

Commutativity of multiplication.

Let's skip count by twos! ​

​Try and count as a group. Remember that up means count forward, and down means count backwards.

Now let's skip count by threes!​

​Let's warm up!

​Use your whiteboard to follow along.

​On your whiteboards...

​_____ ______ = _______

​On your whiteboard...

​Below that division sentence write a division sentence dividing 15 into 3 equal groups.

​For our lesson let's use

​

Let's keep using our whiteboards!

Table captains, make sure everyone has what they need and that everyone is focused!​

Multiple Choice

An arrangement of numbers, shapes or objects, one above the other is called a _________ in an array.

• row

• column

• total

• zero

Multiple Choice

True or false: the meaning of the 8 changed.

• True

• False

The ​Commutative Property

Factors can switch places and trade meanings, but the total stays the same.

Open Ended

Why does the total stay the same?

​Problem Set

• ​Turn to page 43 of your learn books.

  Must Do Problems: 1, 2, 6

  When you’re done with those, try the rest of the problem set!

  Try your best! You will be graded for TRYING, not for correct answers.

  Mistakes are how we learn!

  Work quietly. You may speak to your table groups at a volume of 1.

Open Ended

How did rotating our boards help us see rows as columns and columns as rows?

​Exit ticket

• ​Open your learn books to page 45.

  Write your name and date at the top of the paper.

  Try every problem!

  It’s okay if you don’t know, but always try.

• ​Tear our the exit ticket and turn it into the bin.

  This is for a grade so don’t rush.