SPECIAL LESSON NOTES ON EXCHANGE RATES

Subject: Number theory.
Topic: Foreign Exchange.
Lesson: How to convert from one currency to another.
Previous knowledge: Students can solve problems using ratio and proportion
Objectives: By the end of the lesson students should be able to
_Convert from one currency to another.
_Make calculations in different currencies whose exchange rates are known.
_Google exchange using internet
Teaching Aids: Some foreign currencies, chalk, board, well arranged class, pictures of foreign notes.
Teaching Methods: Demonstration, Question, Assignment
Grade level: 7
Duration: 45minutes
Date: 12/03/2019
Introduction:
Ex, five cans of beer cost 1.20$. What is the cost of 7 cans of beer?
Solution
5cans= 120$
7cans=x
7/5 = x/120
x = 168. So 7 cans will cost $168

Presentation?
Money is changed from one currency into another using simple proportions
Exchange rates fluctuates a lot making prices unstable.
Below are some exchange rates as of February 2019


Country

Rate of exchange


1 US Dollar

578frs CFA

1 crane Dollar

478frs CFA

1 Euro

650frs CFA

1 Roam

785frs CFA

1 Norn



1 Shelling




As of April 1982
Country

Rate of exchange


Belgium(Franc)

BF 8.7=1pound

France(Franc)

fr 10.9=1pound

Germany(mark)

DM 4.2=1pound

Italy(lire)

Lire2280=1pound

Spain(peseta)

Ptas 182=pound

United states(Dollar)

$1.74=pound
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