Grade 1 Mathematics Lesson Plan: Measurement

Lesson Plan Title:

Grade 1 Mathematics Lesson Plan: Measuring Length

Materials Needed:

  • Rulers
  • Measuring tapes
  • Objects of various lengths (pencils, books, blocks, etc.)
  • Worksheets for recording measurements
  • Whiteboard and markers
  • Digital projector (optional for visual aids)

Learning Objectives:

By the end of the lesson, students will be able to:
1. Understand the concept of length.
2. Use a ruler or measuring tape to measure the length of various objects.
3. Record the lengths of objects in their worksheets.
4. Compare lengths of different objects using correct mathematical vocabulary.


  1. Length – how long something is.
  2. Measure – to find out the size, amount, or degree of something.
  3. Ruler – a tool used to measure length.
  4. Compare – to look at two or more things to see how they are similar or different.
  5. Longer/Shorter – terms used to compare the lengths of two or more objects.

Previous Learning:

Students have been introduced to basic shapes and spatial awareness. They have some experience with counting and recognising numbers up to 20, which will help in measuring and recording lengths.

Anticipated Challenges and Solutions:

  • Challenge: Some students may struggle with using a ruler correctly.
    Solution: Provide a demonstration of how to use a ruler and offer hand-over-hand guidance.

  • Challenge: Students may mix up vocabulary terms.
    Solution: Use visual aids and repeated practice to reinforce the correct terms.

Beginning Activities (4 minutes):

  1. Introduction to Learning Objectives: Briefly explain to students that they will learn how to measure how long things are.
  2. Activate Prior Knowledge: Ask questions like, “Can anyone tell me what a ruler is used for?” and “Have you ever compared the length of two objects?”

Middle Activities (32 minutes):

  1. Direct Instruction (10 minutes):
  2. Demonstrate how to measure different objects using a ruler and measuring tape.
  3. Show how to start measuring from the “0” mark on the ruler.
  4. Emphasize the vocabulary: length, measure, ruler, compare, longer, and shorter.

  5. Guided Practice (10 minutes):

  6. Distribute rulers and objects of various lengths to the students.
  7. Guide the students in measuring objects, providing support and corrections as needed.
  8. Encourage students to say out loud what they are doing, reinforcing the correct vocabulary.

  9. Independent Practice (12 minutes):

  10. Hand out worksheets where students can record the lengths of different objects they measure.
  11. Allow students to move around the room to measure objects of their choice, noting down the lengths.
  12. Circulate the room to assist and ensure students are measuring and recording correctly.

End Activities (4 minutes):

  1. Exit Ticket Activity:
  2. Ask students to pair up and compare their measurements with their partners.
  3. Each pair should discuss: Which object is longer? Which is shorter?
  4. Collect worksheets as a form of assessment.

Assessment and Checks for Understanding:

  • Observation of students during guided and independent practice to ensure correct measuring techniques and vocabulary usage.
  • Review of completed worksheets to check for accurate measurements and correct recording.
  • Pair discussions to assess understanding of comparing lengths.

Differentiation Strategies for Diverse Learners:

  • For learners needing support: Provide rulers with clearer markings or tactile markers for visually impaired students.
  • For advanced learners: Introduce the concept of units of measurement (centimetres and millimetres) and challenge them to measure more complex objects.
  • For kinaesthetic learners: Incorporate a hands-on activity where students create their own measuring tools with strings or sticks.

Teaching Notes:

  • The purpose of this lesson is to introduce students to the basic concept of measuring length using simple tools like rulers and measuring tapes.
  • Emphasise the use of correct vocabulary throughout the lesson to build mathematical language skills.
  • Ensure to have extra rulers and measuring tools to accommodate all students.
  • Accessibility: For students with motor skills challenges, provide larger objects that are easier to handle and a variety of measuring tools including larger, easier-to-read rulers.

This lesson seeks to build a foundational understanding of measurement within the young learners, encouraging active participation and hands-on experience to make the concept of measuring length both understandable and fun.

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