Problem-Based Learning in Determine the Cost of Electricity Science Form 3 KSSM

By using the same scenario of Problem-Based Learning such in my previous teaching material @ PBL Electrical Energy Power & Efficiency , I implement this lesson to my 3 Lily and 3 Orchid as part of their Project-Based Learning (which Problem Based Learning is a subset of the Project- Based Learning for PT3 assessment)

THEME: Energy and Sustainability

Activity 6.11
To audit the cost of electrical energy used at home as a way of saving electrical energy

Teaching aids:
Textbook, reference book, internet, Electricity bills, manila card and marker pen

Cross-curricular element: Science and Technology, Environmental studies

Moral values: Helpful, diligent, responsible, thankful and cooperation

21st-century Learning: Problem-Based Learning

Thinking skills: HOTS: applying, analyzing and evaluating

T & L evaluation: Presentation, Group work and Project-Based Learning

                                        The pictures below were during the presentation of 3 Orchid:

Misconceptions:
1. The unit of electrical energy was repeatedly pronounced as Kilowatt per hour.
2. The power of night light is too big eg: 123 Watt
3. The electrical cost per unit is not consistent as what is stated in the electrical bill and TNB Taarif in TNB website:
The first 200 unit = RM0.218
Next 100 unit       = RM 0.334
Another 300 unit = RM 0.514

So they need to REVISE their calculation and report that in their Project-Based Learning group report.

WHILE IN THE OTHER HAND, the struggle is real with 3 Lily

Misconceptions:

1. Challenge in converting number from Watt to kW

2. Challenge in converting time from minutes to hour. 

3. In interpretation of RM0.218 and 21.8 cents to calculate for cost