H9 formules en vergelijkingen.

Welcome K1E
Today:
- Refresh of linear formulas and graphs.
- Instruction of 9.1 shortening formulas .
Working with 9.1
Check of this goals


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Slide 1: Slide
WiskundeMiddelbare schoolvwoLeerjaar 1

This lesson contains 20 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 45 min

Items in this lesson

Welcome K1E
Today:
- Refresh of linear formulas and graphs.
- Instruction of 9.1 shortening formulas .
Working with 9.1
Check of this goals


Slide 1 - Slide

Goals of this lesson

At the end of this lesson:
- You can shorten formulas.



Slide 2 - Slide

What do you still remember of linear formulas adn graphs?

Slide 3 - Open question

Linear formulas

Slide 4 - Slide

Slide 5 - Slide

Slide 6 - Slide

We shorten words to one letter

Slide 7 - Slide

Slide 8 - Slide

Examples
number = visits x 5 + 3
n =5v + 3

costs = number of days x 3 - 20
c = 3d - 20


Slide 9 - Slide

Write the next formulas shorter:
height = number of days x 4 + 10

Slide 10 - Open question

Write the next formula shorter
costs = 200 - number of weeks x 10

Slide 11 - Open question

Homework
Work on exercises 9.1

Slide 12 - Slide

Check of the goals

Slide 13 - Slide

A. weight x 1.50 +16 = amount
B. 20 - number of minutes x 4 = height

Slide 14 - Open question

Slide 15 - Slide

Slide 16 - Slide

Slide 17 - Slide

Slide 18 - Slide

Schrijf de volgende formules korter:
k = 3a + 5a -5
t= 3t - 9t + 4

Slide 19 - Open question

(Laatste vraag) schrijf zo kort mogelijk:
u = 5k - 10 - 4k - 12 -k

Slide 20 - Open question