Page 34 - ADVANCED MATH F.5

Form Five Form Five

3. Engage students to discuss Examples 2.17, 2.18, and 2.19 in
the Student’s Book on applying laws of algebra of propositions
to simplify or prove logical expressions.
1. Guide students to attempt Exercise 2.5 in the Student’s Book.
FOR ONLINE READING ONLY
Advise them to submit their work, check the correctness of
the answers, and provide them constructive feedback where
necessary.

Answers to Exercise 2.5

1. (a) Tautology (c) Tautology (e) Tautology

(b) Tautology (d) Not a tautology

2. ( pvq )

4. (a) p∨ ~ q (b) ~ p (c) p (d) T

5. T

6. (a) F (b) φ (c) q∨ p∨   r

Arguments

Teaching steps
1. Devise strategies for assisting students in brainstorming on
the meaning of the phrase argument in logic. Assist students
through discussions to identify the two parts of arguments,
the initial statements, called “premises”, followed by a last
statement called “conclusion”.
2. Assists students through discussion to perform Activity 2.3
in the Student’s Book on identifying premises and conclusion
of the argument. Advise students to write their work on a flip
chart or manila cards ready for presentations or gallery work.

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Mathematics for Advanced Secondary Schools

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ADVANCED MATH F.5 TG CHAPTERS.indd 28
ADVANCED MATH F.5 TG CHAPTERS.indd 28 30/06/2024 18:01:49