§7.3 The Circle

C7 Measuring

Mr. Fintelman (FNL)

Wednesday May 7th

2025

1 / 30

Slide 1: Slide

WiskundeMiddelbare schoolvwoLeerjaar 1

This lesson contains 30 slides, with text slides and 2 videos.

Lesson duration is: 135 min

Items in this lesson

C7 Measuring

Mr. Fintelman (FNL)

Wednesday May 7th

2025

Slide 1 - Slide

Mr. Fintelman (FNL)

Wednesday November 11th

2024

Date

Wednesday May 7th 2025

Paragraph

§7.3 The Circle

Pages from the handbook

Pag. 71-73

Subject

The circumference of a circle

Today is the day...

Slide 2 - Slide

I can already…

… recognize circles and name the properties.

Prior Knowledge

Slide 3 - Slide

Properties of a circle

Slide 4 - Slide

After this lesson, I can…

… calculate the circumference of a circle.

Goals

Slide 5 - Slide

Let's find what is...

π

Slide 6 - Slide

Slide 7 - Video

Circumference is...

2 \cdot π \cdot r

Slide 8 - Slide

Circumference circle

Slide 9 - Slide

Exercises 34 + 35 + 36 - Pag. 72

timer

5:00

Slide 10 - Slide

Exercises 38 + 39 - Pag. 73

timer

4:00

Slide 11 - Slide

Worktime

You work neatly by…

… reading the theory (again) before asking a question to your classmate.
… raising a hand before asking a question to the teacher.
… if the teacher is busy, remember your question and move on.

Help:

Exercises: 34, 35, 36, 37, 38, 39 and L6.

Assignments:

Pages: 71-73

Exercises: 34, 35, 36, 37, 38, 39 and L6.

Assignments from the planning of §7.3:

Extra:

Exercises: 40 + 41

Slide 12 - Slide

Now I can…

… calculate the circumference of a circle.

Reflection

Slide 13 - Slide

Exercise L6 - Pag. 73

Slide 14 - Slide

Mr. Fintelman (FNL)

Wednesday November 11th

2024

Date

Thursday May 8th 2025

Paragraph

§7.3 The Circle

Pages from the handbook

Pag. 74-76

Subject

The area of a circle

Today is the day...

Slide 15 - Slide

I can already…

… calculate the circumference of a circle.

Prior Knowledge

Slide 16 - Slide

Properties of a circle

Slide 17 - Slide

Circumference is...

2 \cdot π \cdot r

Slide 18 - Slide

After this lesson, I can…

… calculate the area of a circle.

Goals

Slide 19 - Slide

The zza riddle - 2 Mediums vs 1 Large

π

Slide 20 - Slide

The zza riddle - 2 Mediums vs 1 Large

2 Mediums are bigger:

1 Large is bigger:

π

Slide 21 - Slide

Slide 22 - Video

The zza riddle - 2 Mediums vs 1 Large

Let us use

π

π \cdot r^{​ 2 ​ ​}

A r e a M e d i u m = π \cdot 1 5^{​ 2 ​ ​} =

A r e a L a r g e r = π \cdot 2 2^{​ 2 ​ ​} =

A r e a o f t w o M e d i u m P i z z a s =

Slide 23 - Slide

The zza riddle - 2 Mediums vs 1 Large

Let us use

So... one large pizza is bigger than two medium pizzas.

π

π \cdot r^{​ 2 ​ ​}

A r e a M e d i u m = π \cdot 1 5^{​ 2 ​ ​} = 706.858 . . .

A r e a L a r g e r = π \cdot 2 2^{​ 2 ​ ​} = 1520.530 . . . c m^{​ 2 ​ ​}

A r e a o f t w o M e d i u m P i z z a s = 2 \cdot 706.858 . . . =

= 1413.716 . . . c m^{​ 2 ​ ​}

Slide 24 - Slide

Area of a circle

Slide 25 - Slide

Exercises 43 + 44 + 45 - Pag. 75

timer

5:00

Slide 26 - Slide

Exercises 47 + 48 - Pag. 75

timer

5:00

Slide 27 - Slide

Worktime

You work neatly by…

… reading the theory (again) before asking a question to your classmate.
… raising a hand before asking a question to the teacher.
… if the teacher is busy, remember your question and move on.

Help:

Exercises: 34, 35, 36, 37, 38, 39, L6, 43, 44, 45, 47, 48 and L7.

Assignments:

Pages: 71-78

Exercises: 34, 35, 36, 37, 38, 39, L6, 43, 44, 45, 47, 48 and L7.

Assignments from the planning of §7.3:

Extra:

Exercises: 40, 41 and 49.

Slide 28 - Slide

Now I can…

… calculate the circumference of a circle.

Reflection

Slide 29 - Slide

Exercise L7 - Pag. 73

Slide 30 - Slide

§7.3 The Circle

Items in this lesson

Slide 1 - Slide

Slide 2 - Slide

Slide 3 - Slide

Slide 4 - Slide

Slide 5 - Slide

Slide 6 - Slide

Slide 7 - Video

Slide 8 - Slide

Slide 9 - Slide

Slide 10 - Slide

Slide 11 - Slide

Slide 12 - Slide

Slide 13 - Slide

Slide 14 - Slide

Slide 15 - Slide

Slide 16 - Slide

Slide 17 - Slide

Slide 18 - Slide

Slide 19 - Slide

Slide 20 - Slide

Slide 21 - Slide

Slide 22 - Video

Slide 23 - Slide

Slide 24 - Slide

Slide 25 - Slide

Slide 26 - Slide

Slide 27 - Slide

Slide 28 - Slide

Slide 29 - Slide

Slide 30 - Slide

More lessons like this

§5.5 Calculating Angles

§7.4 Volume

§7.1 Length

1.4 Circle and Cylinder

Circles

§5.6 Angles in Planes

§7.2 Area

circumference