August 7, 2015
By Ginger Bruster

Lesson plan

Thermometer Subtraction: Number Line Adventures

No ratings yet
Download lesson plan
GradeSubjectView aligned standards

No standards associated with this content.

No standards associated with this content.

Which set of standards are you looking for?

Students will be able to subtract two digit numbers from each other. Students will be able to identify hot and cold temperatures.

(5 minutes)
  • Tell your students that they will be practising subtraction using a Thermometer(a device that measures temperature) number line.
(5 minutes)
  • Ask your students if they are familiar with thermometers. Potential discussion questions include: Where have you seen a thermometer? What does it do? Why do you think the red line on the thermometer moves?
  • Make sure that your students know that when the temperature is hot, the red line on the thermometer goes up. When it gets cooler, the red line goes down.
(10 minutes)
  • Hand out the Thermometer Subtraction worksheet.
  • Go over the worksheet together as a class.
  • Direct your students to colour in the high temperature on each of the three problems with a red crayon or colored pencil.
  • Have your students write number sentences to go with each of the three thermometer maths problems.
  • Ask your students to write down the correct temperature to the subtraction problem.
  • When your students are finished, pass out the Hot or Cold? worksheet for students to complete on their own.
(5 minutes)
  • Have your students complete the Hot or Cold? worksheet on their own.
  • Direct them to determine what kind of temperature goes with each picture.
  • Refer to personal experiences of wearing lots of clothes in cold weather to illustrate temperature.
  • Enrichment:Have your students create their own thermometers on paper, and instruct them to label the lines of temperature. They may use their thermometers as number lines for future maths activities.
  • Support:Pair your students up during the independent worksheet time. Have one student identify the numbers on the thermometer, and have the other subtract.
(5 minutes)
  • As your students are working on the two worksheets, walk around and make sure that they are completing them accurately.
(5 minutes)
  • Go over the Hot or Cold? worksheet together to make sure your students understand the concept of temperature.
  • Ask them to come up with other hot and cold situations.

Add to collection

Create new collection

Create new collection

How likely are you to recommend to your friends and colleagues?

Not at all likely
Extremely likely

What could we do to improve

Please note: Use the Contact Us link at the bottom of our website for account-specific questions or issues.

What would make you love

What is your favorite part about