1819 C2X §3.2

Schedule
Today:              §3.2 in class (40 minutes), grades on Magister later today

Monday:         §3.3 & discuss test CH2 in class
Tuesday:        §3.4 in class
Friday:            No new material, get all your work made and checked
                          before the vacation!


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Slide 1: Slide
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This lesson contains 10 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 50 min

Items in this lesson

Schedule
Today:              §3.2 in class (40 minutes), grades on Magister later today

Monday:         §3.3 & discuss test CH2 in class
Tuesday:        §3.4 in class
Friday:            No new material, get all your work made and checked
                          before the vacation!


Slide 1 - Slide

Recap: Opposite numbers


Slide 2 - Slide

Adding and subtracting square roots
Adding and subtracting square roots works the same as adding and subtracting like terms:

Slide 3 - Slide

Calculate

3+3+3+3=
A
12
B
81
C
43
D
34

Slide 4 - Quiz

Adding and subtracting square roots
You cannot add up or subtract square roots with a different number under the square root sign. (In the same way you cannot add up different terms)

Slide 5 - Slide

Write as short as possible

y=x+5+x+7
A
y=2x+12
B
y=2x+5+7
C
y=2x+12
D
y=35x2

Slide 6 - Quiz

Adding and subtracting square roots
Writing expressions with addition and subtraction as short as possible with square roots works the same as with like terms.

Slide 7 - Slide

Write as short as possible

P=15a+6b+5a2b
A
P=20a+8b
B
P=24ab
C
P=20a+4b
D
cannot be written any shorter

Slide 8 - Quiz

Homework Monday
Make and correct §3.2 (support, standard or challenge)

Slide 9 - Slide

Any exercises from the HW or theory I should discuss on the board?

Slide 10 - Mind map