Math Warm Up –Unknown Quantity10 minutes

Draw a straight line to all the prime numbers

5

49

4

11

25

9

2

Draw a crooked line to all the square numbers

Draw a thick line to all the factors of 25

Math Warm Up –Story Problem10 minutes

Look at the problem 278 x 38 =Estimate the product

Show your work using words, numbers, and/or pictures

278 x38 is close to_______

Objectives• Content Objective I See connection

between multiplication and division problems

I will be able to solve division problems with 2 digit divisors

• Language objective:I will be able to explain

to a partner how I can use a division problem to help solve a multiplication problem and in reverse.

Ex. 120 ÷ 20 = 6 so 6 X 20 = X

Vocabulary to KnowDividend-the number being divided

Divisor-the number you are dividing by

Quotient-the answer in a division problem

88 ÷ 4 = 22 22 4 88

Division Notation

Let’s review some steps to doing long division using both standard and big 7

Hazel the chipmunk was gathering acorns to make her end of summer acorn bread. If each loaf of bread needs 12 acorns and she gathered 640 acorns then how many loaves could she make?

Solve with Big 7 Solve with Standard Algorithm

Objective: I will find a strategy that works to solve 2 digit by 2 digit multiplication

100, 10, 5, 2, 1

64012

20 x 12-240400

40-360

53 r 4

30 x12

3 x 12- 364

D M S Ch B

12 6405

-6004

3

-364

r 4

Practice

Let’s go over some division review and then you will get to work with a partner on solving the problems

If you get done then play a game of Remainder Raccoon

Today students will be able to solve long division problems

Exit Ticket

Write all the factors for 36

Be sure to show how you found it

Today students will be able to solve long division problems

SELF REFLECTION(In Math Journals)

9

How Powerful Was My Learning Today?

I Would Grade My Effort As…

4 – I asked questions, participated in discussions, and helped others around me.

3 – I asked questions and participated in discussions.

2 – I answered questions only when my teacher called on me.

1 – I did not ask questions when I was confused or stuck. I did not participate in discussions.

4 - I worked hard, stayed on task, and had a positive attitude.

3 - I worked hard and stayed on task.

2 - Sometimes I needed reminders to complete my work and stay on task.

1 - I needed many reminders to complete my work and stay on task. I had a poor attitude. (Complaining, whining, arguing, refusing to work, “I can’t!”)

Today students will be able to solve long division problems