Understanding Temperature

Lesson Overview

Subject: Geography
Year Group: Year 1
Unit: Weather Wonders: Hot vs. Cold (Lesson 2 of 12)
Duration: 60 minutes
Class Size: 30 students
UK National Curriculum Area: KS1 Geography - Identify seasonal and daily weather patterns in the UK

Lesson Objective

By the end of this lesson, students will:

• Understand that temperature tells us how hot or cold something is.
• Learn how to read a simple thermometer.
• Compare temperatures in different environments.

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Lesson Structure

1. Starter Activity (10 minutes) - "Feel the Temperature"

Objective: Engage students in exploring temperature differences.

1. Mystery Objects Challenge

   • Prepare three objects:
     • A warm (not hot) wheat bag or bottle wrapped in a cloth.
     • A room-temperature stone or book.
     • A cold ice pack wrapped in a paper towel.
   • Pass the objects around and ask students:
     • "How does this feel?"
     • "Which one is the warmest? Coldest?"
   • Guide them towards using temperature words like hot, cold, warm, chilly, freezing.

2. Think-Pair-Share

   • Ask students:
     • "Where do we find warm places in school?"
     • "Which parts of our classroom feel colder?"
   • Let students discuss their answers with a partner before sharing with the class.

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2. Main Teaching (15 minutes) - “What is Temperature?”

Objective: Introduce temperature as a measure of hotness or coldness.

1. Show a Simple Large Thermometer

   • Use a classroom thermometer or a large visual model.
   • Explain:
     • "This helps us measure how hot or cold something is."
     • "Hot things have a higher temperature, cold things have a lower temperature."

2. The Magic of Degrees (°C)

   • Explain that temperature is measured in degrees Celsius (°C).
   • Use hand signals:
     • Hands up high for hot (e.g. 30°C)
     • Hands down low for cold (e.g. 0°C).

3. Real-Life Temperature Examples

   • Use pictures (from the UK) to compare places and seasons:
     • Sunny summer day (e.g. 25°C in Brighton)
     • Snowy day (e.g. 0°C in Scotland)
     • A fridge (about 4°C)
     • A kettle with warm tea (about 60°C – but "too hot to touch!")

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3. Hands-On Activity (20 minutes) – “Thermometer Detectives”

Objective: Learn to read and compare temperatures.

1. Small Group Experiment (6 groups, 5 students per group)

   • Set up 3 cups per group:
     • One with ice water
     • One with room-temperature water
     • One with warm water (checked for safe temperatures)
   • Give each group a simple plastic thermometer.
   • Guide them to:
     • Place the thermometer in each cup gently.
     • Read the temperature using the scale (teacher-assisted).
     • Record which cup is the hottest/coldest.

2. Whole-Class Discussion

   • Collect results:
     • "Which cup was the warmest?"
     • "Did we all get similar temperatures?"

3. Quick Class Challenge

   • Show images of different objects (e.g. an ice cream, the sun, a jumper) and ask students to act them out:
     • Shivering for cold!
     • Waving hands for hot!

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4. Plenary (15 minutes) – "Temperature Hunt"

Objective: Connect learning to the real world.

1. Mini Weather Report

   • Display the current temperature in your school’s location (check earlier).
   • Compare it to a different location in the UK.
   • Ask: "How should we dress if we go outside now?"

2. Quick Reflection ("Thumbs Up, Thumbs Down")

   • "Do we feel warm or cold today?"
   • "Do you think places like the beach will be warmer or colder than here?"

3. Exit Question (Stick-on Temperature Scale)

   • Each student places their name on a class chart at a temperature they think feels nice to be outside.

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Resources Needed

✅ Large classroom thermometer
✅ Plastic thermometers (one per group)
✅ Three water containers per group (ice, room temp, warm)
✅ Prepared mystery objects (warm wheat bag, cold pack, room temp object)
✅ Visuals of well-known UK locations with different temperatures
✅ Class temperature scale for exit question

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Assessment Opportunities

• Observation of thermometer use in group activity.
• Listening to students’ temperature comparisons and explanations.
• Responses in pair discussions and plenary exit task.

Differentiation & Support

For EAL/Lower Ability:

• Use real objects and gestures to reinforce hot/cold concepts.
• Work in supported mixed-ability groups during experiments.

For Higher Ability:

• Challenge students to predict temperatures before measuring.
• Ask: "What happens if we leave the warm water out for a long time?"

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Teacher Takeaway

🌟 This lesson builds curiosity by making temperature hands-on and relatable. A balance of practical exploration, movement, and discussion ensures all learning styles are engaged.

📌 Next lesson preview:

• Students will explore seasonal temperature changes and how they affect what we wear.