Skip to main content

Table 3

From: Action research in the physics classroom: the impact of authentic, inquiry based learning or instruction on the learning of thermal physics

S/N

Time

Teaching/Learning Activity

Resources

IBL stage

Rationale/Remarks

1.

10 min

Introduction:

Brief students on lesson outline

-

-

To elicit students’ prior knowledge and situate them within the topic.

Explain that thermal energy is a form of energy that can be transferred. Recall methods of heat transfer from lower sec science.

 

Evaluate

2.

15 min

Lesson Development

   

Key Concept – Thermal Equilibrium

   

Q: What happens to a cup of hot water left to stand for a few hours in a room? And

Q: What happens to a cup of cold water left to stand for a few hours in a room?

 

ENGAGE

Students must be able to differentiate between ‘energy’, ‘sensation’ and ‘temperature’.

Link ‘sensation ‘to the transfer of energy into or out of our hands. Use example of a cup of hot coffee or a metal doorknob.

Iced water, room temperature water and hot water (70 °C)

EXPLORE

Students must understand that thermal energy transfer will stop when objects reach the same temperature.

Student Demo: 3 water troughs

Q: When does energy transfer stop?

3.

15 min

Lesson Development

-

  

Key concept – Methods of Heat Transfer

 

EXPLAIN

Students already have some understanding of the concepts involved with conduction, convection and radiation so it was important to get them to elicit and reinforce prior concepts learnt.

Conduction

- fastest in solids, slowest in gases

- presence of free electrons in metals

Convection

- Density changes in a fluid

- Causes movement of medium

Radiation

- Features of good absorbers/radiators

- Features of poor

- absorbers/radiators

Student Demo:

Get a row of students to act as particles in a medium and demonstrate how energy is transferred from one end to another.

4.

5 min

Briefing in Ice Cream Challenge, Movement to Physics laboratory

Laptop, projector

  

5.

30 min

Group Activity: Ice Cream Challenge

   

Students will be tasked with designing a ‘fridge’ in order to prevent a popsicle from melting. They work in groups of 4 and are provided with a set of materials. They are also expected to produce a sketch of their design with explanations for their choice of materials.

Black paper, Aluminium foil, stryrofoam, sponge, cotton, Ziploc bags, plastic container, Sketch book, markers

ENGAGE/EXPLORE/EVALUATE

As students collaborate and discuss ideas, they will learn from one another and get a chance to verbalise their own thoughts.

6.

10 min

Student Presentations & Discussions

-

  

Two groups of students will be selected to present their designs to the class and explain their choices. Students will be invited to discuss about the merits and disadvantages of certain materials.

 

EXPLAIN

To allow students to make their thinking explicit and share ideas with one another.

A conscious effort was made to allow the lesson to be as student-directed as possible.

7.

5 min

Conclusion

-

-

 

Recap of main ideas and key learning points by teacher.