Grade: Kindergarten Subject: Mathematics Unit: Measurement & Time Basics SAT: ProblemSolving+DataAnalysis ACT: Math

Big and Small

Let's learn to compare sizes! We'll discover what makes things big or small, tall or short, long or short.

Comparing Sizes

When we compare two things, we see how they are different. Let's learn some size words!

Big vs. Small

🐘

Big

🐭

Small

Tall vs. Short

🦒

Tall

🐢

Short

Long vs. Short

🐍

Long

🐛

Short

Wide vs. Narrow

🚌

Wide

🛵

Narrow

Comparing Tip: To compare, put two things next to each other. Then look at them carefully to see which is bigger, taller, or longer!

Let's Compare!

Look at these pairs and see which is bigger or smaller.

🏠

House (BIG)

🏕️

Tent (small)

The house is bigger than the tent. The tent is smaller than the house.

🌲

Tree (TALL)

🌷

Flower (short)

The tree is taller than the flower. The flower is shorter than the tree.

🚂

Train (LONG)

🚗

Car (short)

The train is longer than the car. The car is shorter than the train.

Size Song

The Big and Small Song

Big, big, big! (stretch arms wide)
Small, small, small! (make yourself tiny)
Big, big, big!
Small, small, small!

Tall, tall, tall! (reach up high)
Short, short, short! (crouch down low)
Tall, tall, tall!
Short, short, short!

Now you know your sizes,
Big surprises!
Big and small, short and tall,
You can compare them all!

Practice: Which is Bigger?

Look at each pair and pick the bigger one!

Problem 1: Which is bigger?

🐋

Whale

🐟

Fish

Problem 2: Which is taller?

🏢

Small house

🏬

Tall building

Problem 3: Which is smaller?

🍉

Watermelon

🍓

Strawberry

Problem 4: Which is longer?

✏️

Pencil

📏

Ruler

Problem 5: Which is shorter?

🦒

Giraffe

🐕

Dog

Fun Activities!

Activity 1: Size Hunt

Go around your room and find:

  • Something BIG
  • Something small
  • Something TALL
  • Something short
  • Something LONG

Tell a grown-up what you found!

Activity 2: Body Comparisons

Compare with someone in your family:

  • Whose hands are bigger?
  • Whose feet are smaller?
  • Who is taller?
  • Whose arms are longer?

Activity 3: Toy Line-Up

Get 3-5 toys and put them in order:

  1. Line them up from smallest to biggest
  2. Line them up from shortest to tallest
  3. Can you find the one in the middle?

Activity 4: Draw It!

Draw pairs of things:

  • A big sun and a small sun
  • A tall tree and a short tree
  • A long snake and a short snake

What Did We Learn?

Great job learning about sizes! Remember:

  • Big means it takes up a lot of space
  • Small means it takes up less space
  • Tall means it goes up high
  • Short means it doesn't go very high
  • Long means it stretches far
  • We compare by putting things next to each other
Size Words: Bigger, smaller, taller, shorter, longer - these words help us compare things!

What's Next?

  • Keep comparing things around you
  • Practice using size words: big, small, tall, short, long
  • Next, we'll learn about time - morning, afternoon, and night!