AGENDA 11/4/2015 (43 MIN) Prelude (20 min) Lesson (15 min) Synthesis (8 min)

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Presentation transcript:

AGENDA 11/4/2015 (43 MIN) Prelude (20 min) Lesson (15 min) Synthesis (8 min)

BRAIN BENDER

PROPORTIONS In a proportion the product of the means is equal to product of the extremes. 3 : 5 = 6 : 10 Means Extremes

SOLVING PROPORTIONS 4 = 24 y 30 4(30) = 24y 120 = 24y = y 1. Cross Multiply 2. Solve for the variable.

SOLVING PROPORTIONS  10 = 5 y 8 8(10) = 5y 80 = 5y = y  1. Cross Multiply  2. Solve for the variable

TRY ONE ON YOUR OWN… 3 = 12 y 28

AND ANOTHER… 6 = 12 n 24

PROPORTION WORD PROBLEMS If you can buy one can of pineapple chunks for $2 then how many can you buy with $10?  First set up a proportion then solve for your variable.  Remember proportions are two equivalent ratios set equal to each other.  1 can = x $2 $10

SOLVING THE PROPORTION 1 can = x cans $2 $10 1(10) = 2x 10 = 2x = x: You can buy 5 cans with $10.

PROPORTION WORD PROBLEMS Ming was planning a trip to Western Samoa. Before going, she did some research and learned that the exchange rate is 6 Tala for $2. How many Tala would she get if she exchanged $6?  First set up a proportion then solve for your variable.  Remember proportions are two equivalent ratios set equal to each other.  6 Tala = x Tala $2 $6

SOLVING THE PROPORTION 6 Tale = x Tala $2 $6 6(6) = 2x 36 = 2x = x: She would get 18 Tala.

TRY ONE ON YOUR OWN… Jasmine bought 32 kiwi fruit for $16. How many kiwi can Jasmine buy if she only had $4?  First set up a proportion then solve for your variable.  Remember proportions are two equivalent ratios set equal to each other.

SYNTHESIS OF LEARNING  Write down three things you learned today.  Write down tonight’s homework.  Extra time = Quiet work time

AGENDA 11/5/2015 (43 MIN) Prelude (15 min) Lesson (20 min) Synthesis (8 min)

BRAIN BENDER

HW CHECK  Proportions 2  We will go over it.  Collect

MATH VOCABULARY  Equivalent Ratio  Scale Factor  Means  Extremes

SYNTHESIS OF LEARNING  Write down three things you learned today.  Write down tonight’s homework.  Extra time = Quiet work time

AGENDA 11/6/2015 (43 MIN) Prelude (5 min) Quiz (38 min)

QUIZ FRIDAY11/6/15 Mr. Smith