Two Lumps Under the Blanket
Two Lumps Under the Blanket is a calm cognitive activity for toddlers aged 14–22 months (corrected age). Hide a ball under one of two lumps in a blanket while your child watches, then let them search; tracking which lump hides it builds memory for locations. It takes 3–8 minutes, needs no prep and works indoors.
Updated
Two Lumps Under the Blanket
Hide a ball under one of two lumps in a blanket while your child watches, then let them search; tracking which lump hides it builds memory for locations.
- Ages (corrected)
- 14–22 months
- Time
- 3–8 min
- Prep
- No prep
- Where
- Indoors · Calm
You need
- a small blanket
- a soft ball
Steps
- Spread a small blanket on the floor and bunch it into two lumps a short way apart.
- While your child watches, push the ball under one lump: 'Ball goes under here.'
- Ask 'Where's the ball?' and wait, keeping your eyes off the right lump.
- If they lift the empty lump, say 'Not there... let's look here' and lift the other one together.
- Hide it under the same lump a few times, then switch sides while they watch.
Safety first
- Clear the floor around the blanket so an eager lunge does not end against a furniture corner.
- Use a ball too big to fit through a toilet-paper tube.
No level picked yet. The 0–4 scale is a learning log, not a test.
Not yet: show it once, then let them explore
Watch for the first sign: searches the correct lump on the first try.
Not yet is information, not a verdict. Do it once yourself while they watch, pause, and offer it again in a few days.
Simplify one step
Next time: make just one lump, so there is only one place to look.
Give the least help that works: wait first, then point or show, and guide hands only briefly.
Repeat the same version and fade your help
As you step back, watch for: searches the new lump after watching the ball move, not the old one.
Pause a few seconds longer before you model, and swap showing it for a point or a gesture.
Offer it once more, then add one change
When it is easy again: move the ball from one lump to the other while they watch, then let them search.
Change only that one thing and keep everything else the same.
Ready for one step up
Move the ball from one lump to the other while they watch, then let them search. Or carry it somewhere new: hide the ball under one of two sofa cushions or one of two hats in another room.
Starting it on their own or using it in a new place is the strongest sign. Still change one thing at a time.
Stop and rest this one
In 2-3 days, come back with the simpler version: make just one lump, so there is only one place to look.
End with something calming together. One hard moment never means a delay.
Stop on a good note
Keep this version and keep it short next time: 3 minutes is plenty.
They can do it, but it was not fun today. Add difficulty only once it feels easy and enjoyable again.
How to play Two Lumps Under the Blanket
5 steps, about 3–8 minutes of focus time, no prep.
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Spread a small blanket on the floor and bunch it into two lumps a short way apart.
-
While your child watches, push the ball under one lump: 'Ball goes under here.'
-
Ask 'Where's the ball?' and wait, keeping your eyes off the right lump.
-
If they lift the empty lump, say 'Not there... let's look here' and lift the other one together.
-
Hide it under the same lump a few times, then switch sides while they watch.
What you need for Two Lumps Under the Blanket
| What you need | A small blanket and a soft ball |
|---|---|
| Prep | No prep |
| Focus time | 3–8 minutes |
| Where | Indoors |
| Energy | Calm: good after active play or before a nap |
| Ages (corrected) | 14–22 months |
| Domains | Cognitive |
| Low-prep menu | Yes: no prep and 10 minutes or less |
| Fits the day | In the calm hour before bed, as a quiet moment or on a rainy day indoors |
Easier and harder versions
Change one thing at a time. Drop to the easier version when Two Lumps Under the Blanket stalls; move one rung up only once it looks easy on a few different days.
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Easier
Make just one lump, so there is only one place to look.
-
As written
The 5 steps above, for 3–8 minutes.
-
Harder 1
Move the ball from one lump to the other while they watch, then let them search.
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Harder 2
Spread the lumps farther apart, at opposite ends of the blanket.
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Harder 3
Count slowly to five before they search.
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Hardest
Add a third lump.
What to watch for
The signs of progress in Two Lumps Under the Blanket, mapped to the 0–4 learning scale the family plan uses (a tracking aid, not an assessment).
| Level | What it looks like here |
|---|---|
| 2 · After a model | Does it right after you show it or point. Watch for: searches the correct lump on the first try. |
| 3 · Independent | Does it when offered, with no demonstration. Watch for: searches the new lump after watching the ball move, not the old one and checks the second lump when the first is empty. |
| 4 · Spontaneous | Starts it unprompted or in a new place. Watch for: hides the ball for you. |
Try it somewhere new
Level 4 means the skill travels. Once Two Lumps Under the Blanket is easy, change the place, the person or the material:
- Hide the ball under one of two sofa cushions or one of two hats in another room.
Words to model
During Two Lumps Under the Blanket, say “under”, “where's the ball?”, “not there” and “found it!” at the moment they happen, one at a time, then pause so your child can answer with a look, a gesture, a sign or a word.
Safety for Two Lumps Under the Blanket
- Clear the floor around the blanket so an eager lunge does not end against a furniture corner.
- Use a ball too big to fit through a toilet-paper tube.
Why it works
Searching where a toy went, even after it moves, stretches the CDC 12-month milestone of finding something they watched you hide; cloth-and-ball play like this is the kind the AAP toy report recommends.
Evidence rating: Good: published guidance supports the approach. Cited: CDC milestone checklists by age and AAP clinical report: Selecting Appropriate Toys for Young Children in the Digital Era (Pediatrics, 2019).
Skills and ages
Two Lumps Under the Blanket practises finding hidden objects and spatial words and fits ages 14 to 22 months. Each month below opens more activities for that age.
Skills practised
Activities by month (14–22 months)
Milestone checklists nearby
Activities like Two Lumps Under the Blanket
Colander Cage Peekaboo is the closest match: it also practises finding hidden objects and it uses the same soft ball. It suits 12–17 months, takes 3–6 minutes (a little shorter than Two Lumps Under the Blanket) and needs no prep. For a younger child, Colander Cage Peekaboo starts at 12 months; for an older child, Box Lid Ramp Races runs to 27 months.
Ranked by shared skills, materials and ages
Frequently asked questions
What age is Two Lumps Under the Blanket for?
Two Lumps Under the Blanket suits 14–22 months, using corrected age for a child born early. For a younger or hesitant child, start with the easier version: make just one lump, so there is only one place to look.
How long does Two Lumps Under the Blanket take?
About 3–8 minutes of focused play over 5 steps, with no prep. Stop while it is still fun and repeat it on another day.
How do I make Two Lumps Under the Blanket harder?
Change one thing at a time. First: move the ball from one lump to the other while they watch, then let them search. Then: spread the lumps farther apart, at opposite ends of the blanket. Then: count slowly to five before they search. Hardest: add a third lump.
How do I keep Two Lumps Under the Blanket safe?
Play it only with an adult within arm’s reach. Clear the floor around the blanket so an eager lunge does not end against a furniture corner. Use a ball too big to fit through a toilet-paper tube.
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Monitoring, not medical advice. Talk to your pediatrician about any concern. Our sources and method.