Virginia SOL 4.MG.1.b.ii
The Standard
weight/mass of an object to the nearest U.S. Customary unit (ounce, pound) and nearest metric unit (gram, kilogram)
Virginia Standards of Learning for Mathematics · The student will reason mathematically to solve problems, including those in context, that involve length, weight/mass, and liquid volume using U.S. Customary and metric units.
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students estimate how heavy an object is, then use a scale to check. They choose a suitable unit and record the result to the nearest whole unit.
What Mastery Looks Like
- Students select ounces, pounds, grams, or kilograms based on the object. They make sensible estimates, read scales correctly, and report measurements to the nearest whole unit.
Common Misconceptions
- Students may choose pounds for a paper clip or grams for a heavy backpack. They may misread scale marks or expect gram and ounce readings to have the same number.
How to Assess It
- Set out an eraser and a loaded backpack with appropriate scales. Students choose units, estimate each mass, then measure and record each result to the nearest unit.
Lesson moves
Ways to Teach It
Place six classroom objects at stations, and have students estimate and measure each using kitchen, balance, or bathroom scales.
Ask students to explain whether a full lunchbox should be measured in ounces, pounds, grams, or kilograms, and defend their choice.
Play Mass Match by pairing object cards with reasonable measurement cards, such as a marker with 15 grams.
Examine food packages, record masses from labels, and identify whether grams, kilograms, ounces, or pounds fit each item best.
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Printable 4.MG.1.b.ii Worksheet
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Related Standards
- 4.MG.1.d.ii
weight/mass (ounces and pounds); and
- 2.MG.1.b.ii
the weight of an object to the nearest pound, using a scale; and
- 4.MG.1.a.ii
weight/mass in both U.S. Customary (ounce, pound) and metric units (gram, kilogram); and
- 3.MG.1.b.ii
weight/mass of an object to the nearest U.S. Customary unit (pound) and metric unit (kilogram); and
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