# Mathematics Guides for JSS 2 Number and Numeration

**MATHEMATICS **

**THEME – NUMBER AND NUMERATION**

**TOPIC 1 – FRACTIONS **

**INSTRUCTIONAL MATERIALS**

1. Squared paper or graph sheet

2. Flash cards.

**LEARNING OBJECTIVES **

By the end of the lesson, students should be able to:

1. convert simple fractions to ratios, decimals and percentages and vice versa.

2. Solve quantitative reasoning problems related to conversion of fractions to ratios, decimals and percentages.

**CONTENTS OF THE LESSON**

**FOCUS LESSONS **

1. Expressing fractions as ratios, decimals and percentages

2. Quantitative reasoning on fractions, ratios and percentages

**LESSON PRESENTATION**

TEACHER’S ACTIVITIES1. Guides students to convert fractions to ratios, decimals and percentages and vice and versa.

2. Guides students to solve quantitative reasoning problems related to conversion of fractions to ratios, decimals and percentages and vice versa.

STUDENT’S ACTIVITIES1. Convert fractions to ratios, decimals and percentages and vice and versa.

2. Solve quantitative reasoning problems related to conversion of fractions to ratios, decimals and percentages.

**LESSON EVALUATION**

Students to,

1. convert given fractions to ratios, decimals and percentages.

2. solve given problems on quantitative reasoning related to the contents.

**MATHEMATICS **

**THEME – NUMBER AND NUMERATION **

**TOPIC 2 – WHOLE **

**INSTRUCTIONAL MATERIALS**

Flashcards

**LEARNING OBJECTIVES **

By the end of the lesson, students should be able to:

1. express any whole number in standard form.

2. express decimal number in standard form.

3. find the prime factors of numbers not greater than 200.

4. express numbers as products of its prime factors.

5. find the least common multiples of numbers (LCM).

6. find the highest common factor (HCF) of numbers.

7. identify numbers that are perfect squares.

8. find squares of any given numbers.

9. find the square root of perfect squares using factor method.

10. find square root of any given number.

11. solve quantitative reasoning problems related to contents I – VII.

**CONTENTS OF THE LESSON**

**FOCUS LESSONS **

1. Whole numbers in standard form

2. Decimal numbers in standard form

3. Prime factors

4. Prime factorization

5. LCM

6. HCF

7. Quantitative reasoning.

**LESSON PRESENTATION**

TEACHER’S ACTIVITIES1. Leads students to express any given whole number in standard form, i.e. a × 10n, 1 ≤ a < 10, n t 0.

2. Leads students to express decimal numbers in standard form, i.e. a × 10^n, 1 ≤ a < 10, n ≤ 0.

3. Guides students to find prime factors of numbers.

4. Guide students to express numbers as product of its prime factors.

5. Guides students to find the LCM of numbers.

6. Leads students to find the highest common factors of numbers.

7. Guide students to identify numbers that are perfect square.

8. Guide students to find the squares of any given number.

9. Guides students to find square roots of perfect square by factor method.

10. Lead students to find square root of any given number.

11. Guides students on how to solve quantitative reasoning problems on contents i – vii.

STUDENT’S ACTIVITIES1. Express any whole number in standard form.

2. Express decimal numbers in standard form.

3. Find prime factors of numbers.

4. Express numbers as products of its prime factors.

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5. Find the LCM of numbers.

6. Find the highest common factor of any given whole number.

7. Identify numbers that are perfect square.

8. Find the squares of any given numbers.

9. Find the square root of perfect squares by factor method.

10. Find the square root of any given number.

11. Solve problems on quantitative reasoning related to contents.

**LESSON EVALUATION**

Students to,

1. express given whole numbers in standard.

2. express given decimal numbers in standard form.

3. find prime factors of given numbers not greater than 200.

4. express given numbers as products of its prime factors.

5. find the least common multiples (LCM) of given numbers.

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6. find the highest common factors of given numbers.

7. find the square of any given number.

8. find the square roots of given perfect squares using the factor method.

9. find the square root of any given number.

10. solve given problems on quantitative reasoning related to content I – vii.

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