In this Grade 4 Saxon Math lesson, students learn to read temperature scales on both Fahrenheit and Celsius thermometers by determining the value of tick marks and counting by twos to identify temperatures, including negative values. Students also practice calculating the difference between two temperatures and complete a week-long activity recording and comparing morning and afternoon outdoor temperatures. The lesson connects thermometer reading to number line concepts introduced in Chapter 2.
Section 1
📘 Temperature, Activity Measuring Temperature
A scale is a type of number line often used for measuring.
Next, you’ll apply this concept to read temperatures on both Fahrenheit and Celsius thermometers, including values below zero.
Section 2
Scale
A scale is a type of number line often used for measuring. To read a scale, you must first determine the distance between the marks on the scale.
A scale is like a number line puzzle! To read it, first solve the mystery of what each tick mark represents. Are we jumping by ones or twos? Once you crack that code, you can find the exact measurement every time. It’s all about finding the pattern first!
Section 3
Difference in Temperature
To find how many degrees warmer or cooler a temperature has become, calculate the difference by subtracting the starting temperature from the final temperature.
How much did it heat up today? To find out, just subtract the chilly morning temperature from the warmer afternoon one! You can also think of it as counting up on the thermometer’s number line to see how many degrees the temperature jumped. It’s subtraction in action!
Section 4
Estimate Fahrenheit from Celsius
To estimate the Fahrenheit temperature from Celsius, double the Celsius temperature and then add 30. The formula is .
Need a quick Fahrenheit conversion without a complex formula? Just take the Celsius degrees, multiply by two, and add thirty! It’s not perfectly precise, but it gives you a super fast and close estimate for what to wear. It’s a handy real-world math trick!
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Section 1
📘 Temperature, Activity Measuring Temperature
A scale is a type of number line often used for measuring.
Next, you’ll apply this concept to read temperatures on both Fahrenheit and Celsius thermometers, including values below zero.
Section 2
Scale
A scale is a type of number line often used for measuring. To read a scale, you must first determine the distance between the marks on the scale.
A scale is like a number line puzzle! To read it, first solve the mystery of what each tick mark represents. Are we jumping by ones or twos? Once you crack that code, you can find the exact measurement every time. It’s all about finding the pattern first!
Section 3
Difference in Temperature
To find how many degrees warmer or cooler a temperature has become, calculate the difference by subtracting the starting temperature from the final temperature.
How much did it heat up today? To find out, just subtract the chilly morning temperature from the warmer afternoon one! You can also think of it as counting up on the thermometer’s number line to see how many degrees the temperature jumped. It’s subtraction in action!
Section 4
Estimate Fahrenheit from Celsius
To estimate the Fahrenheit temperature from Celsius, double the Celsius temperature and then add 30. The formula is .
Need a quick Fahrenheit conversion without a complex formula? Just take the Celsius degrees, multiply by two, and add thirty! It’s not perfectly precise, but it gives you a super fast and close estimate for what to wear. It’s a handy real-world math trick!
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter