Virginia SOL 5.MG.1.b.ii
The Standard
mass (grams and kilograms)
Virginia Standards of Learning for Mathematics · The student will reason mathematically to solve problems, including those in context, that involve length, mass, and liquid volume using metric units.
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students estimate and measure the mass of objects using grams and kilograms. They choose an appropriate unit and use measured values to solve real situations.
What Mastery Looks Like
- Students choose grams or kilograms based on the object and context. They make a reasonable estimate, measure accurately with a scale, and use the result to solve a problem.
Common Misconceptions
- Students may choose kilograms for light objects or grams for heavy objects. They may confuse mass with size, read a scale incorrectly, or think 1 kilogram equals 100 grams.
How to Assess It
- Exit ticket: Estimate the mass of a glue stick, measure it with a gram scale, and record the difference. Explain why grams are appropriate.
Lesson moves
Ways to Teach It
Set up stations with a balance, classroom objects, and recording sheets for students to estimate and measure each mass.
Ask students to write which unit fits a bicycle and a paper clip, then explain each choice to a partner.
Play a matching game with object cards, estimated mass cards, and gram or kilogram unit cards.
Compare mass labels on food packages, then calculate how many packages are needed to make one kilogram.
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