Mathematics · Senior Infants

Active learning ideas

Filling and Capacity

Active learning works for filling and capacity because young children build spatial reasoning through touch and movement. Comparing real containers with water or sand lets students feel volume differences directly, which strengthens early math vocabulary and number sense more than abstract explanations. These hands-on experiences also connect counting to measuring, making early number work meaningful and memorable.

• NCCA Curriculum Specifications
• NCCA: Junior Cycle - Measurement - M.3

• 20–35 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Experiential Learning
• 25 min · Pairs

Pair Pouring: Which Holds More?

Give pairs two containers of different shapes. Students predict which holds more water, pour slowly from a jug until full, then compare overflow or remaining water. Pairs record with drawings and share one finding with the class.

Which container do you think holds more water , let us pour and check.

Facilitation Tip

During Pair Pouring, provide containers that clearly differ in shape but not height to challenge the 'taller always holds more' idea.

What to look for

Present students with three containers of different sizes. Ask them to point to the container they think holds the most, then the least. Then, provide a scoop and ask them to fill each container and state if it is full, half-full, or empty.

• Apply
• Analyze
• Evaluate
• Self-Awareness
• Self-Management
• Social Awareness

Activity 02

• Experiential Learning
• 30 min · Small Groups

Small Groups: Cup Counting Relay

Set out jugs and cups at stations. Groups take turns filling a jug with cups, counting aloud each pour. Switch roles after five cups; discuss total count and if predictions matched.

Is this cup full, half-full, or empty?

Facilitation Tip

In Cup Counting Relay, set up three stations with different cup sizes to ensure students compare multiple units.

What to look for

Give students a jug and a smaller cup. Ask: 'How many of these small cups do you think it will take to fill the big jug?' Have them write or draw their prediction. Then, guide them to pour and count the cups, discussing why their prediction was close or far off.

• Apply
• Analyze
• Evaluate
• Self-Awareness
• Self-Management
• Social Awareness

Activity 03

• Experiential Learning
• 20 min · Whole Class

Whole Class: Full, Half, Empty Hunt

Display varied containers around the room. Class votes on full, half-full, or empty status, then pours to verify. Chart results and repeat with student-chosen levels.

How many cups of water does it take to fill this jug?

Facilitation Tip

For Full, Half, Empty Hunt, place containers at varying heights around the room so students must move and observe carefully.

What to look for

Provide each student with a drawing of two different shaped containers. Ask them to draw lines to show if one container holds more, less, or the same amount as the other. Then, ask them to circle the container that is half-full.

• Apply
• Analyze
• Evaluate
• Self-Awareness
• Self-Management
• Social Awareness

Activity 04

• Experiential Learning
• 35 min · Individual

Individual: My Capacity Book

Each child selects containers, fills with sand or water using spoons, sketches levels (full, half, empty), and notes cup counts. Compile into class books for review.

Which container do you think holds more water , let us pour and check.

What to look for

Present students with three containers of different sizes. Ask them to point to the container they think holds the most, then the least. Then, provide a scoop and ask them to fill each container and state if it is full, half-full, or empty.

• Apply
• Analyze
• Evaluate
• Self-Awareness
• Self-Management
• Social Awareness

A few notes on teaching this unit

Experienced teachers approach capacity by letting students test their own ideas first, then guiding reflection. Avoid telling students which container holds more upfront; instead, ask questions that push them to compare and explain. Research shows that children learn volume concepts best when they use real materials and describe their observations aloud. Keep groups small so every child can pour and talk about their findings.

Successful learning looks like students predicting, pouring, and describing containers with confidence. They should use terms like full, half-full, and empty accurately, and explain why one container might hold more than another. Watch for students who adjust their predictions after testing, showing they connect evidence to their thinking.

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Watch Out for These Misconceptions

• During Pair Pouring, watch for students who assume the taller container holds more without testing. Have them pour carefully and discuss why width matters.

  Prompt pairs to fill both containers to the top and compare the actual volumes. Ask, 'Which one felt heavier to fill?' to guide them toward noticing the wider container's greater capacity.

• During Full, Half, Empty Hunt, watch for students who mark 'half-full' by height rather than volume. Have them use small cups to count scoops into the container and mark the halfway point by pour count.

  During the hunt, provide small cups for students to measure and mark halves by pour count, not height. Ask them to explain why the halfway mark isn’t always in the middle.

• During Cup Counting Relay, watch for students who assume all cups hold the same amount. Have them pour and count to see variation in smaller cups.

  Before starting the relay, ask groups to predict how many of each cup size will fill the jug. Then, have them pour and count to compare predictions to actual pours, discussing why differences happen.

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Methods used in this brief

• Experiential Learning