Minor Monday 10th.docx

Subject Class Date Time No. of students Learning Area Learning Objective Learning Outcomes

: Mathematics : 2 Gigih : 11 Sept 2017 : 8.10-9.10 a.m (60minutes) : 35 students : 10. CIRCLES : 10.5 Understand and use the concept of area of sector of a circle to solve problems. : At the end of the lesson, a student is able to: A

Master content knowledge i. Derive the formula of the area of a sector. ii. Find the area of a sector given the radius and angle at the centre. iii. Find the angle at the centre given the radius and area of a sector. iv. Find the radius given the area of a sector and the angle at the centre.

Teaching material and sources: - Mathematics Text Book Form 2 - Mathematics Books 1 - Handouts - Whiteboard - Students list name - Pick-me-up box

Phase:

Content:

Teacher’s activity:

Students’ activity:

Notes:

Introduction

Teacher asks students about previous

Students give

Strategy/

(5min)

lesson.

response to

technique:

teacher’s

the whole class.

Teacher give questions about previous lesson to know the students already master about the previous lesson.

Ask

questions.

Teacher proceeds to the next lesson after student already master the previous lesson.

Structuring (20min)

1. Derive the formula of the area of a sector.

Teacher explains how to find the area of

Restoration

Teaching source

a sector( teacher shows derivation)

activity:

and aids:

Listen to

Mathematics

Teacher asks students to copy the notes.

teacher’s explanation

Text Book Mathematics

Teacher shows an example, how to find the area of a sector given the radius and Students copy the angle at the centre, the angle at the notes. centre given the radius and area of a sector and find the radius given the area of a sector and the angle at the centre.

2. Find the area of a sector given the radius and angle at the centre.

3. Find the angle at the centre given the radius and area of a sector. 𝑎𝑟𝑒𝑎 𝑜𝑓 𝑠𝑒𝑐𝑡𝑜𝑟 𝜃= 𝑥360° 𝜋𝑟 2 4. Find the radius given the area of a sector and the angle at the centre.

Notes Book 1

Assessment (30min)

Teacher distributes the handouts. 1. Find the area of a sector given the radius and angle

Students receive

Teaching aids:

the handouts.

Students

Teacher asks the students to answer the question. Teacher writes down the question on at the centre. whiteboard and picks one students for 2. Find the angle at the centre given the radius and each question to answers at the front. area of a sector. 𝑎𝑟𝑒𝑎 𝑜𝑓 𝑠𝑒𝑐𝑡𝑜𝑟 𝜃= 𝑥360° 𝜋𝑟 2 3.

Find the radius given the area of a sector and the angle at the centre.

name The selected students solve the question at the whiteboard.

Handouts

list

Conclusion

Teacher asks the students to memorize

(5min)

the lesson the formula.

Strategy/ Students take

Techniques:

notes and highlight

Whole class

the key-words.

Q&A session