Capacity and Weight

Grade Level

3rd Grade

Duration

45 minutes

Standards

Common Core State Standards (CCSS) for Mathematics

• 3.MD.A.2: Measure and estimate liquid volumes and masses of objects using standard units of grams (g), kilograms (kg), and liters (l). (Note: Focus on customary units here instead of metric, so adapt accordingly.)
• 3.MD.A.1: Solve problems involving measurement and estimation of intervals of time, liquid volumes, and masses of objects. (Adapted to customary units: cups, pints, quarts, gallons, ounces, pounds.)
• Mathematical Practices (MP):
  • MP1: Make sense of problems and persevere in solving them.
  • MP4: Model with mathematics.

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Learning Objectives

By the end of this lesson, students will be able to:

• Identify customary units of capacity (cups, pints, quarts, gallons) and weight (ounces, pounds).
• Measure and compare at least two different liquids using cups, pints, quarts, and gallons.
• Measure and compare weights of objects using ounces and pounds.
• Use measurement tools (measuring cups and scales) to explore these units tactilely.

I can identify and measure capacity and weight using customary units.

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Success Criteria

• Students demonstrate accurate measurement of liquid volumes using measuring cups and containers.
• Students measure weight using scales and compare at least two different objects.
• Students explain which unit is best suited for measuring a particular liquid or object.

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Materials Needed

• Set of measuring cups (1 cup, 1 pint, 1 quart containers)
• Various containers (clear pitchers or bottles labeled with gallons)
• Water or colored water for easier visualization
• Kitchen scales (digital or analog, clearly marked in ounces and pounds)
• Objects of varying weights (e.g., a bag of sugar, fruit, small toys)
• Visual recipe cards with pictures (dyslexia-friendly)
• Small whiteboards or chart paper and markers

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Lesson Outline

1. Introduction & Warm-up (8 minutes)

• Begin by reviewing prior knowledge: "Who remembers the units we use when measuring length or time?"
• Introduce today’s focus: capacity (how much something can hold) and weight (how heavy something is) using customary units.
• Use an engaging question: “If you have a glass of water, how might you measure how much water is inside?” Write down student ideas.
• Show visual posters of customary capacity units and weight units with images (cups, pints, quarts, gallons, ounces, pounds).

I can state the names of customary units for capacity and weight.

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2. Guided Exploration: Capacity Measurement (15 minutes)

• Divide students into 5 groups of 6; each group gets measuring cups and containers.
• Demonstrate measuring water using a 1-cup measure, then grouping cups to show 1 pint = 2 cups, 1 quart = 4 cups, 1 gallon = 4 quarts. Use colored water for clarity.
• Have students fill a container by layering measures (e.g., "Fill the quart container with cups," then "Can you fill the gallon container?" etc.)
• Instruct them to observe and note: Which container holds more?
• Circulate asking questions: "How many cups made 1 quart? How does a gallon compare to a quart?"

I can measure liquids using different customary units and compare their size.

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3. Guided Exploration: Weight Measurement (10 minutes)

• Bring out the scales and objects. Model how to weigh an object, showing ounces and pounds on the scale.
• Let each group pick two objects to weigh. They write down the weight of each.
• Ask students to compare weights: Which is heavier? By how much?
• Discuss which units make sense (ounces for small items, pounds for heavier).

I can weigh objects using ounces and pounds and compare their weights.

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4. Independent Practice: Measuring Challenge (7 minutes)

• Challenge each student to pick one liquid measurement and one weight measurement to record.
• Provide small whiteboards or worksheets where students write or draw their measurements.
• Dyslexia-friendly option: Provide worksheets with pictures of measuring tools aligned with spaces to write numbers for visual support.
• Advanced learners can create a simple recipe card using cups, pints, and ounces with provided ingredients or objects.

I can measure and record liquid volumes and weights independently.

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5. Wrap-up and Reflection (5 minutes)

• Invite a few students to share what they measured and compared.
• Write “I can...” statements on the board and have students confirm which they accomplished today.
• Reinforce vocabulary by quick flashcard quiz (e.g., teacher shows "pint," students say "2 cups").
• For extension, encourage students to try mixing ingredients at home based on the recipe cards they created or designed.

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Differentiation Strategies

• Hands-on use of measuring cups and scales for tactile learners.
• Visual aids and labeled measurement units for English Language Learners and dyslexic students.
• Pair verbal instructions with demonstrations.
• Use dyslexia-friendly printed materials with clear fonts and pictures.
• Allow students to work in pairs or small groups for peer support.

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Extension Activity (Advanced Learners)

• Create an original recipe requiring different capacity measurements (e.g., a lemonade recipe using cups, pints, and gallons).
• Present the recipe to the class visually or verbally.
• Calculate total capacity and weights involved.

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Assessment

• Formative assessment through observation during group activities and discussions.
• Review of independent practice worksheets for correct measurements and understanding.
• Exit Ticket (optional): On a small card, students write one unit of capacity and one unit of weight and one thing they measured today.

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Teacher’s Reflection

• Note which students needed extra help and whether measuring tools helped comprehension.
• Reflect on engagement during hands-on activities and consider pairing for next lesson if required.
• Prepare to adjust final lesson (lesson 5) to reinforce or extend concepts based on assessment results.

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This lesson plan integrates tactile, auditory, and visual learning approaches to meet diverse learners' needs and closely aligns with CCSS mathematical practices for measurement and problem solving in 3rd grade.