GED 2002 Teachers' Handbook of Lesson Plans
Activity Title- Is It Cold?
| Area/Skill
– Math, LA Reading |
Cognitive
Skill Level – Analysis and Application |
Activity Title Is It Cold?
Goal/Objective
Students will learn how to convert Celsius to Fahrenheit.
Lesson Outline/Introduction
Begin by discussing that the GED Math Test requires you to do
conversions. To do conversion you need to be able to add, subtract,
and multiply, plus the use of a formula.
Activity
Teach students how to convert Fahrenheit to Celsius:
1. Ask students to think of temperature in Fahrenheit
2. Have them add 40 to that number.
3. Multiply the new number by .555554. Then subtract 40
Teach the students to convert Celsius to Fahrenheit
1. Ask student to think of a temperature in Celsius.
2. Have them add 40 to that number.
3. Multiply the new number by 1.8.4. Then subtract 40
Debriefing/Evaluation Activity
Have students complete Handout - Baby It's Cold Outside! And
share answers with the class.
|
Materials, Texts, Realia, Handouts
- Handout - "Baby It's Cold Outside"
- Paper and pencil
- Calculators
- Celsius and Fahrenheit thermometers
Extension Activity
Using the Internet research the history of Celsius and Fahrenheit.
Then have the student write a short essay on what they discovered
about the history of the two measures and how they are both
used today.
ESE Accommodations
- Have the students work in pairs.
- Write the formulas down for converting Fahrenheit
and Celsius on an index card.
- Allow additional time to complete the assignment.
- Provide calculators.
|
Real-Life Connection
When is Fahrenheit used? When is Celsius used? Have the class
research the different ways in which these two measures are used.
Then brainstorm the use of the measurements in the area of earth
science, math, and even in weather reports.
|
| Area/Skill
– Math, LA Reading |
Cognitive
Skill Level – Analysis and Application |
Activity Title
Objective
Say: You will see the term Celsius and Fahrenheit
on the GED Math Test. You will also need to know how to convert
these terms.
Ask: What is Celsius? What is Fahrenheit?
How do you convert one to the other?
Say: The conversion is quite easy. All you
need to know is how to add, subtract, multiply, and use a formula.
Let me show you how it is done.
Main Activity
Say: This is how you convert Fahrenheit to
Celsius.
1. Think of a temperature in Fahrenheit. (Write
the temperature on the board.)
2. Now, you will add 40 to that number. (Do the calculations
on the board.)
3. Multiply the new number by .55555 which is simply a decimal
point followed five fives. (Do the calculation on the board.)
4. Then you subtract 40 and you are done making the conversion.
To change Celsius to Fahrenheit you do this process.
1. Think of a temperature in Celsius. (Write
the temperature on the board.)
2. Now, you will add 40 to that number. (Do the calculation.)
3. Multiply the new number by 1.8. (Do the calculations on the
board.)
4. Then you subtract 40 and you have finished.
Distribute the Handout- Baby It's Cold Outside!
Closure/Conclusion
Have students share answers and explain how they figured out
their answers. Then you may discuss how Celsius and Fahrenheit
are used in different areas of science, math, and weather.
Follow-up Lessons/Activities
Research the "invention" of Celsius and Fahrenheit and their
uses today. Students may also conduct a search of the terms on
the Internet in order to find additional information. Students
should present their finding to the class.
|
***Handout - Baby, It's Cold Outside
- Temperature Conversion***
The formula F=C 9/5+32 is used to convert a given Celsius
(C) temperature to its Fahrenheit equivalent.
1. The boiling point of water is 100 degrees Celsius.
What is the Fahrenheit boiling point of water?
2. What two operations are used in the formula F=C 9/5+32?
3. Complete the table below using the formula.
Celsius |
Fahrenheit |
-30 |
-22 |
| -20 |
|
| -10 |
|
| 0 |
|
| 10 |
|
| 20 |
|
| 30 |
|
| 40 |
|
| 50 |
|
4. The table below lists the high temperatures for the first week of
December in Orlando, Florida. Complete the table.
Celsius |
Fahrenheit |
25 |
|
| 25 |
|
| 30 |
|
| 29 |
|
| 27 |
|
| 26 |
|
| 25 |
|
5. What was the average high temperature for the one-week period?
6. What temperature would you predict for December 20th? Explain your
answer.
7. Transform the above formula to solve for Celsius given the Fahrenheit
temperature. Check your table with your values in the above tables.
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