Pre-K · Week 24 · Early Math

Half-full and empty

I can compare a half-filled cup of water with an empty cup over a tray.

Let’s get started

Today we will explore half-full and empty through play. Grown-ups can model it first; children can respond by pointing, moving, speaking, or drawing. There is no speed test.

Learn together

  1. Watch together: Compare a half-filled cup of water with an empty cup over a tray.
  2. Try it as a team: Touch each object and count slowly. Pause, repeat and let the child lead.
  3. Try once more in a new way: Sort or compare real objects. Celebrate the attempt, not perfect results.

Watch and try an example

Compare a half-filled cup of water with an empty cup over a tray.

Show what you noticed

  1. Show or tell a grown-up what you noticed while we explored half-full and empty. An adult may enter the child's words.
  2. Try it again: Compare a half-filled cup of water with an empty cup over a tray. Tell your grown-up which part was fun or surprising.
  3. Draw, point, move, or talk to show what you learned about half-full and empty. Adults can record an observation instead of requiring writing.

Five optional ways to revisit this week

Choose a few minutes on any days that suit your child; these are ideas, not mandatory daily assignments.

  1. Day 1 · Discover: Compare a half-filled cup of water with an empty cup over a tray. What did the child notice about half-full and empty? A parent may record their spoken answer.
  2. Day 2 · Repeat: Repeat half-full and empty together slowly. Encourage the child to choose the materials or lead the play. Describe how the child participated in half-full and empty today.
  3. Day 3 · Change it: Explore half-full and empty again in a different place or with another set of safe materials. What changed when you tried the activity differently?
  4. Day 4 · Pretend: Invite the child to explain or act out half-full and empty for a toy animal or family member. Which part could the child explain, show, or imitate?
  5. Day 5 · Celebrate: Let the child choose one favorite part of half-full and empty to repeat, draw or talk about. What is one skill, observation, or question to remember next time?

Family play extension

Family play extension: Compare a half-filled cup of water with an empty cup over a tray. Take a picture or save a drawing if your family wishes. This week's theme is building things.

Reflect and grow

What did you enjoy or notice about half-full and empty? Let your grown-up write down your answer if you prefer to speak.