Length means how long something is.
We use length to measure objects:
From end to end
From top to bottom
From one side to the other
π§ We ask: βWhich is longer?β or βHow much longer?β
Word
What It Means
Long
Something that goes far or stretches out
Short
Something that doesnβt go far
Longer
One object is more than another
Shorter
One object is less than another
Same Length
Both objects are equal in size
β These words help us compare two or more things.
We can compare objects by putting them side by side.
Object 1
Object 2
Which Is Longer?
Pencil
Crayon
Pencil
Spoon
Fork
Spoon
Shoe
Sock
Shoe
Eraser
Pen
Pen
π Use the words: longer, shorter, or same length
We can measure with:
Non-standard units (paper clips, blocks, fingers)
Standard tools (ruler, measuring tape, meter stick)
π Example (non-standard):
The pencil is 6 paper clips long.
The eraser is 3 paper clips long.
β
The pencil is longer.
π Example (standard):
The string is 12 centimeters long.
The pen is 10 centimeters long.
β
The string is longer by 2 centimeters.
β
Start at the edge
β
Line up the units with no gaps
β
Count carefully
β
Always compare from the same starting point
Word
Meaning
Length
How long something is
Measure
To find out how long or short
Compare
To look at two or more things
Longer
More length than something else
Shorter
Less length than something else
Centimeter (cm)
A small unit of standard length
My pencil is ____________ than my eraser.
My shoe is ____________ than my ruler.
A toothbrush is ____________ than a table.
My finger is about 6 ____________ long.
Answer Ideas:
longer, shorter, centimeters
Have learners use paper clips, counting cubes, or a ruler to measure:
A book
A pencil
A toy car
A piece of string
Then compare:
π βWhich is longer?β βBy how many?β