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Multiplication and Division of Integers

ECS 300 Day 2 Field Lesson Plan
by

Aimee Castillo

on 9 April 2015

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Transcript of Multiplication and Division of Integers

Integers
Multiplication
Division
Warm-Up
In short
Twitter
Hashtag
Multiplying:
both positives...
both negatives...
Warm-Up
Miss cast-till-yo
Miss Castillo
different signs have
negative answer
Answer the Following:
Write your full name on top of the index card.
write 2 facts about you?
do you have any allergies?
what name you prefer to be called?
just call me
Miss C.
2nd yr. University of Regina
English Major
Religious Studies
Social Studies
Fun Facts:
Volunteer is FUN!
I write short poetry
@aimeefcastillo
Email Address
aimee.castillo17+georgelee@gmail.com
}
Minors
#classwithMissC
#
Integers?
.5
1/2
24
0
-9
3
-17
.34
8/40
Integers are whole numbers
and you all know how to multiply.
addition
subtraction
+
-
multiplication
division
x
/
=
=
-
-
=
-
-
=
mixed...
-
=
=
-
-
-
same kind of signs have positive answer
(+ )x (+) = +
(-) x (-) = +
=
=
(+) x (-) = -
(-) x (+) = -
Dividing:
both positives...
=
=
both negatives...
-
-
=
-
-
=
mixed...
-
=
=
-
-
-
/
.
.
/
.
.
.
/
.
/
.
/
.
/
.
.
.
.
same kind of signs have positive answer
different signs have negative answer
-
=
=
Peer Practice
find groups
assign a volunteer to grab a deck of cards in the front
divide the deck into half and give the other half to the person on your left
black cards are positive numbers

red cards are negative numbers
each deck holder will reveal one card
the rest of the group will multiply the cards
after two multiplications, switch roles
the previous deck holders will now answer
this time, look for quotient
what kind of signs will give me positive answer?
Exit Slips
at the back of your index cards,
have a fantastic lunch!
hand them in before you go.
write one comment, question, or suggestion, you like or dislike about today's class.
what kind of signs will give me negative answers?
multiply
divide
multiply
divide
multiply
divide
multiply
divide
Make name tents
Grab markers and construction paper.
Peer Practice
Finding Groups (4-5 per group)
if you are sitting on group table,
join a group.
if your are sitting on a solo table,
stay, that's your group.
Activity
(10 minutes)
Review (5 minutes)
card samples with class
Multiplication vs. Division
different signs
negative signs
positive signs
Class Practice
The C bank gets 30 new loan clients and each one to borrows $5.
lost $5 from each (-5).
In total, they have lost 30 x (-5)= -150
From the bank's perspective they gained three new clients (+30) and
From the clients' perspective they all (30) gained $5 each (+5)
Overall, they gained 30 x 5= 150
Full transcript