Comparing size and sorting objects (kindergarten) · lesson

Words for size

💡 Long, tall, and heavy are words for things we can measure.

Long tells how far a thing goes end to end. Tall tells how high it goes.

Heavy tells how hard it is to lift. A thing that is hard to lift is heavier.

🧠 How to think about it

Ask what you are checking. Lifting? Use heavy or light. Height? Use tall or short.

🏡 Try it at home

Lift a book and a sock. Which is heavier? Stand next to a chair. Who is taller?

Tap each one to count it

💡 Line things up at one end to see which is longer.

Put two things side by side. Start them at the same spot.

The one that sticks out more at the end is longer.

🧠 How to think about it

Cube trains: count the cubes in each row. The row with more cubes is longer.

🏡 Try it at home

Line up two spoons at one end. Which is longer? Try a fork and a pencil.

💡 We can compare which is heavier and which holds more.

A cow is heavier than a cat. It is much harder to lift.

A bottle holds more water than a spoon. It takes more to fill it.

🧠 How to think about it

Picture lifting both. The harder one is heavier. Picture filling both. The one that takes more holds more.

🏡 Try it at home

Fill a cup with water. Pour it into a bowl. Does the bowl hold more than the cup?

Our pets

Dogs

Cats

💡 Sort things into groups, then count each group to compare them.

Put all the apples in one group. Put all the bananas in another.

Count each group. The group with the biggest number has the most.

🧠 How to think about it

Look at a picture chart. Each row is one group. Count each row. Then find the most and the fewest.

🏡 Try it at home

Sort the socks by color. Count each pile. Which pile has the most?