1. 1 something you can see, hold, or touch
Learning Objective
Name __________________________
Today, we will compare the length of objects1.
1 something you can see, hold, or touch
CFU
What are we going to do today?
What are objects?
Activate (or provide) Prior Knowledge
Who is taller? A B
CFU
On their white boards, students write which animal is taller. Students, you already know how to tell when one thing is taller than another. We call this comparing height. Today, we will compare the length of objects.

2. Length is how long something is.
Concept Development
Length is how long something is.
To compare length is to tell which object is longer, shorter, or the same.
Example: Compare the length of the crayons.
“The purple crayon is longer than the yellow crayon.”
“The yellow crayon is shorter than the purple crayon.”
“The blue crayon is same length as the yellow crayon.”
CFU
Which pencil is shorter? How do you know? Pencil __ is shorter because _______. A B
In your own words, what does it mean to compare length?
To compare length means to tell which object is _______________.

3. Length is how long something is.
Skill Development/Guided Practice
Name________________________________
Length is how long something is.
To compare length is to tell which object is longer, shorter, or the same.
Compare the length of objects.
Step #1: Look at the objects carefully.
Step #2: Compare the length of the objects. (Hint: Look at the end of the objects.)
a. Identify the longer object, if any. (circle)
b. Identify the shorter object, if any. ( )
Step #3: Tell which object is longer, if any. “The ____ is longer than the ____.”
Whale
Bee
Fork
Turtle
“The fork is longer than the bee.”
“The whale is longer than the turtle.”
CFU
(#2a) How did I/you identify the longer object?
(#2b) How did I/you identify the shorter object?

4. Length is how long something is.
Skill Development/Guided Practice (continued)
Length is how long something is.
To compare length is to tell which object is longer, shorter, or the same.
Compare the length of objects.
Step #1: Look at the objects carefully.
Step #2: Compare the length of the objects. (Hint: Look at the end of the objects.)
a. Identify the longer object, if any. (circle)
b. Identify the shorter object, if any. ( )
Step #3: Tell which object is longer, if any. “The ____ is longer than the ____.”
Scissors
Train
Crayon
Bus
“The scissors are the same length as the crayon.”
“The train is the same length as the bus.”
CFU
(#2a) How did I/you identify the longer object?
(#2b) How did I/you identify the shorter object?

5. “The train is longer than the block.”
Importance
Length is how long something is.
To compare length is to tell which object is longer, shorter, or the same.
1. Comparing length will help you describe2 the objects you play with.
2 tell about
“The train is longer than the block.”
CFU
Does anyone else have another reason why it is important to compare the length of objects? (pair-share) Why is comparing the length of objects important to you? You may give me my reason or one of your own. Which reason is more important to you? Why?

6. “The pencil is longer than the crayon.”
Length is how long something is.
To compare length is to tell which object is longer, shorter, or the same.
Concept Closure
In your own words, what does it mean to compare length?
To compare length means to tell _______________.
Skill Closure
Compare the length of objects.
Step #1: Look at the objects carefully.
Step #2: Compare the length of the objects. (Hint: Look at the end of the objects.)
a. Identify the longer object, if any. (circle)
b. Identify the shorter object, if any. ( )
Step #3: Tell which object is longer, if any. “The ____ is longer than the ____.”
“The pencil is longer than the crayon.”
Crayon
Pencil
Summary Closure
What did you learn today about comparing the length of objects? (pair-share)

7. Length is how long something is.
Independent Practice
Name________________________________
Length is how long something is.
To compare length is to tell which object is longer, shorter, or the same.
Compare the length of objects.
Step #1: Look at the objects carefully.
Step #2: Compare the length of the objects. (Hint: Look at the end of the objects.)
a. Identify the longer object, if any. (circle)
b. Identify the shorter object, if any. ( )
Step #3: Tell which object is longer, if any. “The ____ is longer than the ____.”
Shark
Fly
Spoon
Fish
“The spoon is longer than the fly.”
“The shark is longer than the fish.”

8. Length is how long something is.
Independent Practice (continued)
Length is how long something is.
To compare length is to tell which object is longer, shorter, or the same.
Compare the length of objects.
Step #1: Look at the objects carefully.
Step #2: Compare the length of the objects. (Hint: Look at the end of the objects.)
a. Identify the longer object, if any. (circle)
b. Identify the shorter object, if any. ( )
Step #3: Tell which object is longer, if any. “The ____ is longer than the ____.”
Cane
Key
Ladybug
Screwdriver
“The cane is longer than the screwdriver.”
“The key is the same length as the ladybug.”

9. Length is how long something is.
Periodic Review 1
Name________________________________
Length is how long something is.
To compare length is to tell which object is longer, shorter, or the same.
Compare the length of objects.
Step #1: Look at the objects carefully.
Step #2: Compare the length of the objects. (Hint: Look at the end of the objects.)
a. Identify the longer object, if any. (circle)
b. Identify the shorter object, if any. ( )
Step #3: Tell which object is longer, if any. “The ____ is longer than the ____.”
Ladybug
Duck
Bee
Fly
“The duck is longer than the fly.”
“The ladybug is the same length as the bee.”

10. Length is how long something is.
Periodic Review 2
Name________________________________
Length is how long something is.
To compare length is to tell which object is longer, shorter, or the same.
Compare the length of objects.
Step #1: Look at the objects carefully.
Step #2: Compare the length of the objects. (Hint: Look at the end of the objects.)
a. Identify the longer object, if any. (circle)
b. Identify the shorter object, if any. ( )
Step #3: Tell which object is longer, if any. “The ____ is longer than the ____.”
Airplane
Car
Train
Bus
“The bus is longer than the car.”
“The airplane is the same length as the train.”

11. Length is how long something is.
Periodic Review 3
Name________________________________
Length is how long something is.
To compare length is to tell which object is longer, shorter, or the same.
Compare the length of objects.
Step #1: Look at the objects carefully.
Step #2: Compare the length of the objects. (Hint: Look at the end of the objects.)
a. Identify the longer object, if any. (circle)
b. Identify the shorter object, if any. ( )
Step #3: Tell which object is longer, if any. “The ____ is longer than the ____.”
Spoon
Cane
Key
Fish
“The cane is longer than the key.”
“The fish is longer than the spoon.”

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