math 7 - unit 2 - the call hallthecallhall.weebly.com/.../day_9_-_dividing_integers.pdf · 2018. 9....
TRANSCRIPT
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Jun 273:40 PM
Lesson Objectives:• I can use division as it relates to distance.• I can represent division as a value model.• I know the general rules for dividing integers.
Math 7 - Unit 2Day 9 - Dividing Integers
(pg 48 in INB)
Jun 273:33 PM
Division is a way to undo groups of multiplication. There are two methods to model division.
How would we talk about the following problems with division and groups?
a.5 ÷ 1 b. -4 ÷ 2 c. -25 ÷ -5
The number of groups
111
111
111
111
The numberin each group
1
11 1
1
1
11 1
1
1
11 1
1
Method 1How many in each group?
Method 2How many groups?
Oct 129:27 PM
The product of two integers with the same sign is positive. The quotient of two integers with the same sign is positive.
The product of two integers with different signs is negative.The quotient of two integers with different signs is negative.
Oct 129:52 PM
Find each quotient.
a. -28 ÷ (-4) b. 96 ÷ 8 c. 54 ÷ (-3) d. -42 ÷ 6
Write the division problem modeled below. Then evaluate.
d. e.11 111 1
11 111 1
11 111 1
11
11
11
11
11
11
11
11
11
11
11
11
Oct 1210:59 PM
http://knowyourmeme.com/photos/2357dividebyzero
Oct 1210:16 PM
2
Oct 1211:02 PM
http://www.clevercuties.com/shopexd.asp?id=393
Oct 1210:47 PM
http://www.ww2aircraft.net/forum/offtopicmisc/quokesjokes8308201.html http://math.la.asu.edu/~rich/
http://brandonmichaelblack.com/lists/24_divide_by_zero_demotivationals/13.htm#.UHj33K416ZE
Oct 1210:51 PM
http://knowyourmeme.com/photos/8729dividebyzero
Oct 21:16 PM
Test QuestionsAt the beginning of this unit's notes, write 1 question that could show up on the unit test. You do NOT need to solve the questions.
You will add to this list throughout the entire unit.
Jul 810:14 AM
* Individual Think Time *
Homework1.5 pg 32 #4-27, 42-45
What to do if you get stuck...1. Reread the problem. Did you write it
down correctly?2. Reread your notes. Is there a problem
similar that we did together in class?3. Find a problem similar in your book. Try
this one to see if it helps.4. Skip the problem until the end of
Individual Think Time. Then ask an "educated" question of a neighbor or Mrs. Call.
Today we're working by...