LESSON PLANNING OF TEMPERATURE

 

LESSON PLANNING OF TEMPERATURE

Subject Mathematics

Grade 5^th

Students` Learning Outcomes

• Recognize units of temperature in Fahrenheit and Celsius scales.

Information for Teachers

• There are plenty of things in the world that can be measured by using different units.

• One of them is temperature that is usually measured through an instrument, called thermometer.

• The thermometer means the measuring instrument? Thermometers used to measure the room temperatures are filled with Alcohol.
• Thermometer used to measure the body temperature is filled with Mercury.
• For measuring temperature too commonly used units are Celsius and Fahrenheit.

• If a certain temperature reads “C” in Celsius scale and “f” in Fahrenheit scale, the two readings are related in the following way:
  

 

• During this lesson, for all steps, the teacher should consult the textbook according to the requirement

 

Material / Resources

Writing board, chalk / marker, duster, 3 cups of water (2 normal water and 1 cold water) thermometer, textbook

Introduction

Ask: “What is temperature?” [The degree of heat or coolness of a body or environment]

 

• Ask: “What is the standard unit of temperature?” [Degree Celsius]
• Scientists use Degree Celsius so that they come up with uniform results. No matter where the scientist is from, when he/she talks about temperature he/she is measures it in Degree Celsius.
• Tell: “Alcohol is used in the thermometer of the environment and mercury is used in the thermometer to measure body temperature”.
• How a thermometer works? Alcohol/Mercury expands when it is heated.
• Do you know?
• o   Water boils at 212 degrees Fahrenheit(⁰F) and 100 degrees Celsius (⁰C)
• o   Water Freezes at 32 degrees Fahrenheit and 0 degrees Celsius
  

 

• Share the objectives of today.

 

Development

Activity 1

• Ask the students some questions to find out their knowledge about heat and coolness.

o   What comes to your mind when you hear the word HOT?

o   What comes to your mind when you hear the word COLD?

o   How can you tell when something is HOT or COLD?

• Write students` responses on the board. Do we all have the same opinions about what is hot and what is cold? Let`s find out.
• Experiment-Let`s explore- hot or cold [whole class]
• Take three cups of water. Cut B contains ice-water, cup A contains Luke warm water and cup C contain, normal water according to the room temperature.
• Tell students that we put the cups of water in order from warmest to coldest.
• Invite different students to come on table and test with finger and write the order on the board.
• They will be using their fingers as thermometers.
• Tell the students that they did one finger in each cup.
• They should also know that they can only dip their fingers in the water once.
• Everyone can recheck their answers by dipping a finger from the opposite hand in each cup once.
• When all of the students get chance to put their fingers in cups in order to record their findings on a board with their name. For example;    One student named Anum C, A, B.
• Then, discuss their answers (most likely there will be different answers A, C, B and C, A, B)
• Bring students to the conclusion that we need a more accurate instrument to measure the temperature?
• Ask: “Can you tell an accurate way to measure temperature?
• Tell the students that we use thermometers to measure temperature.
• Ask the students, “Which do you think can read the temperature better, a tool for measuring temperature.
• Thermometers have colored alcohol or Mercury that expands if it is heated and contracts if it is cooled.
•  Ask them if they have read in science lessons, that water freezes at 0 ⁰C and it boils at 100 0 C.
• Explain to the students that they are scientists because scientists use thermometer to read Celsius scale, every day.
• Students will now use the thermometer to measures of cups A, B, and C.
• Now they will know the correct sequence of the cups.

Close the Activity:

• Temperature is the amount of heat in an object, and it tells how hot or cold something is/
• They should be able to distinguish whether the substance is closer to 0 or 100 degrees Celsius.
• Ask:

o   How does the doctor or parent check temperature? [with thermometer]

o   What is the range of the body temperature you have heard? [ 96 to 104]

o   Do you know what is the unit to measure it?[as the weight is measured in kilograms and distance in meters we have ‘Celsius scale’ to measure temperature]

o   Did you ever notice in news, when they tell about weather, they use Celsius scale.

o   Our body temperature like 96, 100 or 103 is measured in Fahrenheit.

o   Both units are used to measure temperature.

o   The ice has temperature of 00C (32 ⁰F) and boiling water has temperature of 100 ⁰C(212 ⁰F)

o   The human body temperature is 37 ⁰C which in Fahrenheit is 98.6 ⁰F.

o   We are going to discuss the relation between both scales we can represent one value in other scale.

o   As for distance we use both miles (conventional) and meters (Standards) units, for temperature Fahrenheit (F) and Celsius (C) both used.

o   Let`s see the relation.

o   Write the following on the board.

o   Ask: “Who will explain this relation?” [invite students to explain it in their own words] I. e.  

 

o   Repeat it twice.

o   Draw a line in the middle of the board, so that two students can come and work on it at a time.

o   Invite other students also to participate.

Activity 2

Conversion Game:

• Students will be divided into two teams.
• Teacher write put a conversion problem on the board.
• One student from each team will come to the board to solve the sum.
• Students who finish the conversion first correctly, will earn a point for his / her team.
• Announce the winner group of the game.
• His has given enough chance of practicing the conversion rule.
• Invite above, below and average students.
• Ask Questions:

o   What things we use to measure temperature?

o   What do you mean by Thermometer?

o   What two units are used to measure temperature?

• Ask students to tell the whole lesson summery.

Sum up / Conclusion

Temperature is usually measured in two unit’s i. e. Celsius (⁰C) and Fahrenheit (⁰F)

Room temperature can be measured by Alcoholic thermometer.

Body temperature can be measured by mercury thermometer.

The two formulas to convert C^{0 to} F⁰ and vice versa are as follows: 

 

Assessment

• Once students have done practice as a whole class, now is the time for individual assignment.
• Give questions and allocate time.
• Following questions can be given; you may take questions from textbooks as well.
• Assess individually at the end of the assignment
• Change Celsius to Fahrenheit:
  

 

• Change Fahrenheit to Celsius:
  

 

 

Follow up

• Watch the daily news and note temperature of 3 different cities.
• After a week you will declare the hottest city of 3, you observed.