Explore comparing, sorting, and early measurement through playful activities for a small group or the whole group.
Counting
GET READY TO PLAY
Materials checklist
Check off materials as you gather them. Your progress is saved in this browser; no account is needed.
SMALL GROUP
Make room to compare and try again
A practical starting point is 2–4 children.
Keep the materials within reach and let children explore what looks or feels bigger, how objects might be sorted, and what changes when water moves between cups.
Start with exploring
1
Offer a few large, safe household objects and make two clear spots for sorting.
2
Invite children to compare and sort the objects. They can revise a choice, point, or describe what they notice.
3
Set out a shallow tray with a small amount of water, a damp sponge, and two cups. Offer supervised turns squeezing water between the cups.
ACTIVITY
Big and Small Sort
Choose a few large, safe household objects. Clear two spots on a table or floor for the big and small groups; bowls are optional. No prepared cards or special kit are needed.
Small-group idea: Let two or three children compare one familiar object at a time and place it in either sorting spot. Invite them to point, explain, or change their minds together.
A GROWN-UP PROMPT
“What makes this one feel big or small?”
Make it easier to join: Start with two objects and model one comparison; accept pointing or grouping instead of naming.
Safety: Choose objects that are too large to swallow, avoid sharp or breakable items, and stay alongside the child.
Pick two or three color cards and bring a small basket to a safe outdoor spot.
Small-group idea: Choose two color cards and one safe outdoor area for a few children to explore together. They can point out a match or place an adult-approved find beside its card; collecting is optional.
A GROWN-UP PROMPT
“What else do you notice in that color?”
Make it easier to join: Begin with two colors in one safe spot; point to a matching color when collecting an item is not useful.
Safety: Stay together outdoors. An adult should decide what is safe to touch or collect; leave unknown plants and fungi where they are.
Lay out a few paper shape cards and choose familiar objects that are safe to handle.
Small-group idea: Offer a few children one shape card at a time to match with a familiar room object. Compare what they notice, and let pointing or showing a match stand in for naming it.
A GROWN-UP PROMPT
“Which one has corners?”
Make it easier to join: Start with one shape and one familiar object; add another match only when the child is ready.
Safety: Choose objects that are too large to swallow, and stay nearby while children explore.
Place a small amount of water in a shallow tray with a damp sponge and two cups.
Small-group idea: Take turns squeezing a damp sponge between two cups over a shallow tray with a little water. Stay beside children throughout, then empty the tray when play is over.
A GROWN-UP PROMPT
“Which cup has more water now?”
Make it easier to join: Use one cup and a large sponge with a small amount of water; focus on squeezing and pouring before comparing amounts.
Safety: Stay beside the child throughout water play and empty the tray when play is over.
An adult leads a visible demonstration for the group.
Model each comparison where everyone can see. Children can share a prediction by speaking, pointing, or gesturing, and hands-on turns can follow when an adult can stay beside each participant.
Start with exploring
1
Place a few large, safe objects and two clear sorting spots where everyone can see. Model comparing and sorting one object.
2
Invite children to predict which object seems bigger or where it might go; welcome answers by speech, pointing, or gesture.
3
Demonstrate sponge squeezing with a small amount of water in a shallow tray. Invite predictions about the cups, then offer closely supervised turns only when you can stay beside participating children.
ACTIVITY
Big and Small Sort
Choose a few large, safe household objects. Clear two spots on a table or floor for the big and small groups; bowls are optional. No prepared cards or special kit are needed.
Whole-group idea: Hold up two safe objects where everyone can see and model comparing them. Invite children to vote by pointing or gesturing, then take turns placing objects and revising a sort.
A GROWN-UP PROMPT
“What makes this one feel big or small?”
Make it easier to join: Start with two objects and model one comparison; accept pointing or grouping instead of naming.
Safety: Choose objects that are too large to swallow, avoid sharp or breakable items, and stay alongside the child.
Pick two or three color cards and bring a small basket to a safe outdoor spot.
Whole-group idea: Show two color cards to the group and look around one safe outdoor spot together. Children can point to matches while an adult decides what is safe to touch or collect.
A GROWN-UP PROMPT
“What else do you notice in that color?”
Make it easier to join: Begin with two colors in one safe spot; point to a matching color when collecting an item is not useful.
Safety: Stay together outdoors. An adult should decide what is safe to touch or collect; leave unknown plants and fungi where they are.
Lay out a few paper shape cards and choose familiar objects that are safe to handle.
Whole-group idea: Show one shape card to the group and invite everyone to spot a familiar match in the room. Children can point or gesture while an adult brings a safe object over to compare.
A GROWN-UP PROMPT
“Which one has corners?”
Make it easier to join: Start with one shape and one familiar object; add another match only when the child is ready.
Safety: Choose objects that are too large to swallow, and stay nearby while children explore.
Place a small amount of water in a shallow tray with a damp sponge and two cups.
Whole-group idea: Demonstrate squeezing a damp sponge between two cups over a shallow tray with a little water. Invite predictions, then offer turns only when an adult can stay beside each child; empty the tray afterward.
A GROWN-UP PROMPT
“Which cup has more water now?”
Make it easier to join: Use one cup and a large sponge with a small amount of water; focus on squeezing and pouring before comparing amounts.
Safety: Stay beside the child throughout water play and empty the tray when play is over.