This lesson contains 14 slides, with interactive quiz and text slides.
Lesson duration is: 50 min
Items in this lesson
Which exercises should we discuss on the board?
Slide 1 - Mind map
Recap: Factor
A factor is the number you multiply an original amount with, to get the new amount.
You should be able to calculate the factor for a given increase/decrease in percent and also the other way around.
Drawing a diagram can help!
Slide 2 - Slide
Recap: Factor
Slide 3 - Slide
Recap: Factor
Slide 4 - Slide
Recap: Factor
Slide 5 - Slide
Recap: Exponential formulas
A table or graph shows exponential growth if the bottom row/vertical variable is multiplied by the same number everytime the top row/horizontal variable increases by 1.
An exponential formula has the form
b is the initial amount, the value of y when x = 0
g is the growth factor, the number you multiply with.
y=b⋅gx
Slide 6 - Slide
Recap: Exponential formulas
Slide 7 - Slide
Recap: Growth factor
If the growth factor is between 0 and 1,
the graph is decreasing.
If the growth factor is 1,
the graph is constant
If the growth factor is more than 1,
the graph is increasing.
Slide 8 - Slide
Recap: Standard notation
A number is standard/scientific notation is a number between 1 and 10 multiplied with a power of 10.
The power of 10 tells you how many places you should move te decimal point to the right (positive power) or to the left (negative powers).
You should be able to write normal numbers in standard notation and the other way around.
Slide 9 - Slide
Recap: Standard notation
Write these numbers in standard notation. Round the first number to two decimal places.
Slide 10 - Slide
Recap: Standard notation
Write these numbers in standard notation. Round the first number to two decimal places.
Lesson duration is: 50 min
