§7.3 The Circle

• Wiskunde
• Middelbare school
• vwo
• Leerjaar 1

C7 Measuring

Mr. Fintelman (FNL)

Wednesday May 7th

2025

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...

I can already…

1. … recognize circles and name the properties.

Prior Knowledge

Properties of a circle

After this lesson, I can…

1. … calculate the circumference of a circle.

Goals

Let's find what     is...

π

Circumference is...

2⋅π⋅r

Circumference circle

Exercises 34 + 35 + 36 - Pag. 72

Exercises 38 + 39 - Pag. 73

Worktime

You work neatly by…

1. … reading the theory (again) before asking a question to your classmate.
2. … raising a hand before asking a question to the teacher.
3. … 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

Now I can…

1. … calculate the circumference of a circle.

Reflection

Exercise L6 - Pag. 73

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...

I can already…

1. … calculate the circumference of a circle.

Prior Knowledge

Properties of a circle

Circumference is...

2⋅π⋅r

After this lesson, I can…

1. … calculate the area of a circle.

Goals

The    zza riddle - 2 Mediums vs 1 Large

π

The    zza riddle - 2 Mediums vs 1 Large

2 Mediums are bigger:

1 Large is bigger:

π

The    zza riddle - 2 Mediums vs 1 Large

Let us use 

π

π⋅r​2​​

Area Medium=π⋅15​2​​=

Area Larger=π⋅22​2​​=

Area of two Medium Pizzas=

The    zza riddle - 2 Mediums vs 1 Large

Let us use 

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

π

π⋅r​2​​

Area Medium=π⋅15​2​​=706.858...

Area Larger=π⋅22​2​​=1520.530... cm​2​​

Area of two Medium Pizzas=2⋅706.858...=

=1413.716... cm​2​​

Area of a circle

Exercises 43 + 44 + 45 - Pag. 75

Exercises 47 + 48 - Pag. 75

Worktime

You work neatly by…

1. … reading the theory (again) before asking a question to your classmate.
2. … raising a hand before asking a question to the teacher.
3. … 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.

Now I can…

1. … calculate the circumference of a circle.

Reflection

Exercise L7 - Pag. 73