Math 8 Lesson Plan 74 Adding and Subtracting Radicals class outline.doc

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Sewanhaka High School
Math 8
Name:__________________________
Mrs. Lidowsky, Principal
Mr. Long, Teacher
Per:____
Date:_____________________
H.W. #74: Ditto
DO-NOW #74: Answer the following questions:
1) Simplify the following expressions :
a)
36r 2 d =
b)
175 =
2) Chris bought a used car for $4,482. His payments for the car were the same each month for 3 years. How much
were his monthly payments?
Topic: Radicals and the Right Triangle
Main Idea: Adding and Subtracting Radicals
Aim:
RECALL
NOTES
(
) has not eaten for months (For what
reason, I do not know why). One day,
(
) comes across some money and
goes out and eats pizza over the next 5 days. On
Monday, (
) ate 2 pepperoni pies. On
Tuesday, (
) ate 5 anchovie pies.
On Wednesday,
(
) ate 3 anchovie pies. On
Thursday, (
) ate 4 pepperoni pies.
On Friday, (
) ate 1 anchovie pie.
Over the 5 days, how many pepperoni and
anchovie pies did (
) eat?
Represent your answer as an algebraic expression.
Replace p with 3 and a with 5 and write
your new answer over and observe what
happens.
Simplify: 8 5 +
5 -2 5
Simplify 4 12 - 5 3
Express the perimeter of the figure in simplest
radical form. Evaluate your answer. What
does this mean?
Drill: Answer the following questions.
1) Simplify: 4 3 + 2 3 -6 3
2) Simplify:
Summary:
If time:
12 +
3
3) Simplify: 5 8 - 3 18 +
3
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