Decimal place value (age 9+)
Round decimals with two decimal places to the nearest whole number and to one decimal place
Share and support
Teaching Table
Set out your lesson
Round a two-place decimal to a whole number or a tenth, including a boundary crossing.
Learner readiness not observed. Ask the learner to place 3.4 between 3 and 4 and identify the halfway point. Revisit rounding one-place decimals if needed.
Check learner readiness separately; the existence of a prerequisite lesson is not evidence of attainment.
20–30; split if useful
Use S for the model, G for supported practice and T for a fresh attempt.
Optional pencil and scrap paper only. All scenarios, charts and blanks are supplied.
Put S, G and all adult keys away before T. Open only the T learner sheet.
Discuss the reasoning; use the adult key afterward and record only actual support and responses.
No printer, purchases, cutting, login or installation required. Use one sheet on screen at a time; answer aloud or write only responses on scrap paper.
Pause if tired or frustrated. Fictional contexts need no personal information, travel, measuring equipment or real purchases. Participation is optional.
Read prompts aloud without explaining answers; allow pointing, speech, zoom or adult scribing. Record adaptations separately from independent written evidence.
Record actual responses, assistance and access mode; never invent observations or infer mastery.
Use the complete materials on screen or print only the current sheet. Keep adult guidance out of learner view. Retain an earlier model only when the current step supplies it as context.
Teaching limits and safe use
These are finite task opportunities, not proof of mastery. Record what was attempted and what support was used.
No learner results or lesson efficacy have been established.
The canonical title says decimal place value; the actual description targets rounding. Only positive decimals are sampled; negative ties and different rounding conventions are outside scope.
Record actual responses, assistance and access mode; never invent observations or infer mastery.
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.
No reviewed resources for this concept yet.
The teaching approach above still stands. Curated practice links will appear here as the shelf fills.
Check understanding
- Round 3.47 to the nearest whole number (3) and to 1 d.p. (3.5)
- Round 12.95 to 1 d.p. (13.0) and explain the boundary case
- Estimate 4.83 + 2.17 by rounding each to the nearest whole number
“If your child measures a length as 4.67 m, can they round it to the nearest whole metre — and also to the nearest tenth of a metre?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Fractions
- Age range
- Ages 9–10