K1E 9.2 and 9.3

K1E 9.2 and 9.3
1 / 20
volgende
Slide 1: Tekstslide
WiskundeMiddelbare schoolhavoLeerjaar 1

In deze les zitten 20 slides, met interactieve quizzen en tekstslides.

time-iconLesduur is: 45 min

Onderdelen in deze les

K1E 9.2 and 9.3

Slide 1 - Tekstslide

Welcome K1E
Today:
-Check on homework 9.1
Instruction 9.2 Simplifying formulas
Time tot work
Instruction 9.3 Working with formulas
Time to work

Slide 2 - Tekstslide

Goal of this lesson
At the end of this lesson:
-you know what terms and variables
-How to simplify a formula
- How to calculate a result of a formula

Slide 3 - Tekstslide

What did we learn friday about shortening formulas. Name two things

Slide 4 - Open vraag

Shorten this formula:
costs = time x 7 + 25

Slide 5 - Open vraag

Terms and variable

Slide 6 - Tekstslide

Like terms

Slide 7 - Tekstslide

Examples
f = 5a +6b - 3a
f = 2a + 6b


y = 7x + 8 -2x + 4 + 4x
y = 9x + 12

Slide 8 - Tekstslide

Write this formula shorter:
t = 4k - 3 - 6k + 8

Slide 9 - Open vraag

1t = t  and -1t = -t

Slide 10 - Tekstslide

Write this formula shorter:
p = -3n+4-2n+5+4n

Slide 11 - Open vraag

Time to work on 9.2

Slide 12 - Tekstslide

9.3 working with formulas

Slide 13 - Tekstslide

Examples
calculate b for t=5 in the next formula
b = 3t-8

b= 3t - 8     b= 3 x 5 - 8
b= 15 - 8
b = 7

Slide 14 - Tekstslide

calculate k when m=-4
k = 3m - 10

Slide 15 - Open vraag

Slide 16 - Tekstslide

calculate k when t = 3
k=2(4t-5)+6

Slide 17 - Open vraag

Time to work on 9.2 and 9.3

Slide 18 - Tekstslide

Write this formula shorter:
r= 4t + 7 + 5t -3

Slide 19 - Open vraag

Calculate r when t = -2
r= 9t + 4

Slide 20 - Open vraag