Revision length and area 2

• Wiskunde
• Middelbare school
• vwo
• Leerjaar 2

Revision length and area

Schedule: 

• Learning goals 
• Think, pair, share
• Continue individual review 
• Code breaker

Learning goals 

At the end of this lesson I can:

•   Manage my time and tasks effectively (ATL: Self-Management)
• Use skills and knowledge in multiple contexts (ATL: Critical thinking)
• (Re)consider the process of learning (ATL: Reflective skills) 

Think by yourself (2 minutes) - write your answer in your notebook 

Pair up and discuss your answer with your group members (3 min)

Share your findings with the whole class

Solution: 

Solution: 

Atrapezium = 0.5 x (30 + 42) x 15.5 = 558 ft2

Total Area = 2 x 558 = 1116 ft2

$3 per ft2

Total cost = 3 x 1116 = $3348

Student question 

If Johny has a bucket filled with 4.765kl, and he wants 11L, how much would he need to fill/take away to get his reached goal?

Student question 

If Johny has a bucket filled with 4.765kl, and he wants 11L, how much would he need to fill/take away to get his reached goal?

4.765 kL = 4765 L 

4765 - 11 = 4754 L 

He needs to empty out 4754 L

Volume and capacity

1. Find the volume of this prism 

2. Find the capacity of this prism 

Bonus: 

3. What would be the weight of the prism if it was filled with seawater (you can ignore the weight of the sides of the prism)

Volume and capacity

1. Find the volume of this prism 

A_trapezium = 0.5 x (6 + 10 ) x 5 = 40 cm²

V_Prism = 40 x 20 = 800 cm³

2. Find the capacity of this prism 

800 cm3 = 800 ml = 0.8 L

Bonus: 

3. What would be the weight of the prism if it was filled with seawater (you can ignore the weight of the sides of the prism)

Volume and capacity

Bonus: 

3. What would be the weight of the prism if it was filled with seawater (you can ignore the weight of the sides of the prism)

1 L of seawater weighs approximately 1.025 kg.

0.8 L will weigh 0.8 x 1.025 = 0.82 kg

Continue practicing 

I have 2 workpackets: 

- Length, perimeter, area 

- Volume, capacity, mass

You will choose 1 workpacket to work on today. 

(You can borrow the answer key from my desk)

Code breaker 

Code breaker 1: 

What is the result of Snow White’s survey of the dwarves?

Code breaker 2: 

How did I realise that the drink 'Ocean' didn’t exist?