Mastering Percentages: A Math Adventure

Percentage Increase and Decrease
Percentage increase is the amount by which a quantity increases in relation to the original amount. Percentage decrease is the amount by which a quantity decreases in relation to the original amount.
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Slide 1: Slide
MathematicsFurther Education (Key Stage 5)

This lesson contains 18 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 30 min

Items in this lesson

Percentage Increase and Decrease
Percentage increase is the amount by which a quantity increases in relation to the original amount. Percentage decrease is the amount by which a quantity decreases in relation to the original amount.

Slide 1 - Slide

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What percentage of 120 is 24?
A
30
B
15
C
20
D
25

Slide 2 - Quiz

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What is 1/5 as a percentage
A
20%
B
5%
C
15%
D
25%

Slide 3 - Quiz

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What is 3/6 as a percentage
A
36%
B
50%
C
18%
D
63%

Slide 4 - Quiz

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What percentage of the Dutch population is refugee?
A
0,5%
B
1,5%
C
2%
D
3,5%

Slide 5 - Quiz

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What percentage of animals live in the ocean?
A
25
B
42
C
64
D
78

Slide 6 - Quiz

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Mastering Percentages: A Math Adventure

Slide 7 - Slide

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Learning Objective
At the end of the lesson you will be able to understand the concept of percentages, calculate percentages, and apply percentages in various real-life scenarios.

Slide 8 - Slide

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What do you already know about percentages?

Slide 9 - Mind map

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What are Percentages?
Percentages are a way of expressing a number as a fraction of 100. It is denoted by the symbol '%'. For example, 50% means 50 out of 100.

Slide 10 - Slide

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Calculating Percentages
To calculate a percentage of a number, multiply the number by the percentage as a decimal. For example, to find 20% of 80, multiply 80 by 0.20 to get 16.

Slide 11 - Slide

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Applications of Percentages
Percentages are widely used in various fields such as finance, business, and everyday life. They help in understanding discounts, markups, interest rates, and much more.

Slide 12 - Slide

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Percentage Problems
Solve word problems involving percentages to develop a deeper understanding of their practical applications.

Slide 13 - Slide

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Interactive Activity: Percentage Quiz
Engage in a fun quiz to test your understanding of percentages and strengthen your knowledge through interactive learning.

Slide 14 - Slide

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Conclusion
Recap the key concepts of percentages and their applications. Encourage students to practice and explore more real-world examples to reinforce their understanding.

Slide 15 - Slide

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Write down 3 things you learned in this lesson.

Slide 16 - Open question

Have students enter three things they learned in this lesson. With this they can indicate their own learning efficiency of this lesson.
Write down 2 things you want to know more about.

Slide 17 - Open question

Here, students enter two things they would like to know more about. This not only increases involvement, but also gives them more ownership.
Ask 1 question about something you haven't quite understood yet.

Slide 18 - Open question

The students indicate here (in question form) with which part of the material they still have difficulty. For the teacher, this not only provides insight into the extent to which the students understand/master the material, but also a good starting point for the next lesson.