MathematicsMeasurementAges 9–10

Metric & Imperial Conversion

Understand and use approximate equivalences between metric units and common imperial units (inches, pounds, pints)

Lesson

Set out your lesson

Estimate between metric and common imperial measures, naming the unit system and the approximation.

Before teaching

Use this short check, then start teaching.

Activity

Use mt_Zks8xyInSG first. Ask the learner to explain that a unit conversion does not change the underlying amount.

Policy

Check learner readiness directly; prerequisite availability is not attainment.

Printer, credit, and teaching notes

Check learner readiness directly; prerequisite availability is not attainment.

Materials

Pencil and plain paper, or this screen and an oral explanation. No purchases, food, scissors, weighing or real journey needed.

Procedure

Choose one short sitting or stop after Together and return later. Read the model aloud, invite the learner to try, then put Show and Together aside for Try. Keep adult keys closed and out of view.

Access

No printer: show only the active learner sheet; copy the supplied grid/table or draw on plain paper. An adult may read exact prompts or scribe the learner’s own words without adding a method; record that support. Oral work is mathematical evidence, not handwriting evidence.

Privacy

Use fictional quantities. No names, addresses, body measurements, accounts, family records or purchases are required. A learner can pause or decline a context.

Teaching Procedure

Ask what stays the same, which unit is being counted, and what operation fits. Let the learner explain before helping. If stuck, return to the worked model, then retry; record the help rather than calling it independent.

Use the complete materials on screen or print only the current sheet. Keep adult guidance out of learner view.

Next: Show

Adult extras

Teaching limits and safe use

These are finite task opportunities, not proof of mastery. Record what was attempted and what support was used.

Finite task opportunities do not establish general mastery. Exact canonical examples are rehearsal when previously modeled. No timed testing or forced personal disclosure.
Approximate factors are task references, not medical advice or precision measuring instructions. The canonical pint relation is interpreted as UK imperial; using it for US liquid pints would be wrong.

Use fictional quantities. No names, addresses, body measurements, accounts, family records or purchases are required. A learner can pause or decline a context.

Record actual responses, access mode and assistance; never invent observations or infer mastery.

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Teaching approaches

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Estimate between metric and common imperial measures, naming the unit system and the approximation.

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.

View learner plans ($12/mo per learner) See sample family archive

Learning resources

Extra practice links — they do not replace Gakuva’s teaching approach.

BBC Bitesize · Practice link — not the full lesson

KS3 Maths

Open practice(new tab)

Before you open · source notes

KS3 Maths supports Metric & Imperial Conversion. An adult previews and guides; this is a learning page, not a scored quiz.

Free educational page, no sign-in required for the tested path.

Before you open

Ask the learner one fact they learned and one question they still have.

Opening this link does not save learning or assess mastery.

Source, access and review notes

Public BBC Bitesize page. An anonymous GET on 2026-11-12 returned HTTP 200 with no login or payment prompt for this URL. Opening the link does not save practice or assess mastery. An adult should preview and guide the learner.

BBC Bitesize. “KS3 Maths.” External page; Gakuva does not copy, host, embed, or redistribute materials.

Unknown — link only

Check understanding

State that 1 inch ≈ 2.5 cm and use this to estimate length in inches
Know that 1 kg ≈ 2.2 pounds and estimate a person's weight in pounds
Convert approximately between litres and pints (1 litre ≈ 1.75 pints)

“If your child hears that a baby weighs 7 pounds, can they give a rough idea of that in kilograms — using the approximate conversion they know?”

Curriculum record

Type: Conceptual
Subject: Mathematics
Domain: Measurement
Age range: Ages 9–10

Standards

uk-nc-2013:Ma5/3.1b