Grade 3 Math Grading Rubric: Mass and Capacity — Units, Reading, Converting, Problems

Learning Objectives

• Explain the difference between mass (how heavy) and capacity (how much a container holds).
• Choose the best unit (g, kg, mL or L) to measure everyday objects.
• Read dial scales and measuring jugs where marks go up in 50s, 100s or 250s.
• Know that 1 kg = 1000 g and 1 L = 1000 mL, and change between units.
• Solve word problems that add, subtract, multiply or divide masses and capacities.

How to Use This Resource

• Share the rubric with students before the task so they know what success looks like.
• Circle one level per skill for each student; add the points (maximum 16).
• Record scores on the record sheet.

Differentiation

Support: Use only scales and jugs with marks every 100. Challenge: Read scales with marks every 20 g or 25 mL. English language learners: Teach the question forms: "How heavy is it?" "How much does it hold?

Teacher Tips

Use rice or sand instead of water if your classroom has no sink — it pours and measures the same way. Collect empty food packets and bottles: they show real masses and capacities to read

What's Included

• 4 skills × 4 levels (Excellent, Good, Developing, Beginning)
• Task: Performance task: "Kitchen Measurer" — measure 2 masses and 2 capacities, record them with units and write one word problem.
• Class record sheet
• Score bands: 14–16 = Excellent, 10–13 = Good, 6–9 = Developing, 4–5 = Beginning.

Additional Files

• Grade 3 Math Grading Rubric: Mass and Capacity (DOCX)

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