One-to-one counting
One-to-one correspondence when counting objects: each object is paired with exactly one number name
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Teaching Table · Reviewed guide
Set out your lesson
“Let’s count slowly. Touch each object once and say one number for each touch.”
Bring to the table
- 5 small objects such as blocks, buttons, or toy animals
Full guide and materials
- 5 small objects such as blocks, buttons, or toy animals
- Step 1. Line up 3 objects with space between them.
- Step 2. Model touching each object once while counting aloud.
- Step 3. Have your child count the same row, then repeat with 5 mixed-up objects.
- Quick check. Place 5 objects randomly. Ask your child to count them without help. Success means every object is touched once and the count ends at 5.
Worked example. Point to the first block and say “one,” the next block “two,” and the last block “three.” There are 3 blocks because 3 was the final number said.
Optional challenge. Arrange 7 objects in a circle so there is no obvious starting point. Ask your child to choose a start and count each object once.
What to notice. Save a brief parent observation note confirming your child touched each object once without skipping or double-counting, and record the final count. A photo or practice screenshot alone does not establish the counting process.
Compare teaching approaches
Teaching approaches
Gakuva’s recommended starting approach is selected. You can still compare every option.
1 approach
Let’s count slowly. Touch each object once and say one number for each touch.
Get 5 small objects. Line them up, have your child touch and count each one, then mix them up and count again. Start with 3 objects if needed.
Family records and proof options
Keep a record of your learning
Save photos, notes, and attendance. Export a proof packet for compliance or portfolio reviews.
Learning resources
Reviewed external links that reinforce this concept. They do not replace Gakuva’s teaching approach.
Topmarks · Practice link — not the full lesson
Teddy Numbers
Select individual treats to build a requested quantity. For one-to-one practice, have the learner touch each chosen treat and count aloud.
Free · no login · ads
Review and open practice
Save a screenshot plus an adult note or short recording that the learner touched each treat once while counting aloud without skips or repeats.
Opening this link does not save learning or assess mastery.
Open practice (new tab)Source, access and review notes
Select individual treats to build a requested quantity. For one-to-one practice, have the learner touch each chosen treat and count aloud.
Save a screenshot plus an adult note or short recording that the learner touched each treat once while counting aloud without skips or repeats.
Free · no login · ads
Unknown — link only
Topmarks · Practice link — not the full lesson
Underwater Counting
Supplemental counting-and-numeral matching with focused levels to 5 or 10; the game does not enforce touching every object once.
Free · no login · ads
Review and open practice
Save a screenshot plus adult observation of the learner pointing to each creature once while counting aloud.
Opening this link does not save learning or assess mastery.
Open practice (new tab)Source, access and review notes
Supplemental counting-and-numeral matching with focused levels to 5 or 10; the game does not enforce touching every object once.
Save a screenshot plus adult observation of the learner pointing to each creature once while counting aloud.
Free · no login · ads
Unknown — link only
The Math Learning Center · Practice link — not the full lesson
Number Frames
Adult-guided virtual manipulative: drag one counter into each frame cell and say one number for every counter.
Free · no login
Review and open practice
Use the built-in snapshot plus adult observation or audio of the learner counting each counter exactly once.
Opening this link does not save learning or assess mastery.
Open practice (new tab)Source, access and review notes
Adult-guided virtual manipulative: drag one counter into each frame cell and say one number for every counter.
Use the built-in snapshot plus adult observation or audio of the learner counting each counter exactly once.
Free · no login
Unknown — link only
Check understanding
- Point to or touch each object exactly once while saying number names
- Do not skip objects or double-count when counting a set
- Recognise an error when someone counts an object twice
“If your child is counting a pile of grapes, do they touch or point to each one exactly once as they say each number — without skipping any or counting the same one twice?”
Curriculum record
- Type
- Conceptual
- Subject
- Mathematics
- Domain
- Counting & Cardinality
- Age range
- Ages 4–6
Standards