Egg-cellent Counting: Discovering Dozens and Half Dozens!

Math Grades 1st Grade 6:35 Video
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Lesson Description

Join us on a fun adventure to learn about dozens and half dozens using eggs! This lesson will help you count and understand how many things are in a dozen and half a dozen.

Video Resource

Grade One: Math Lesson # 104 Identifying Dozen and Half Dozen.

The Eagle's Nest - Our Online Classroom

Duration: 6:35
Watch on YouTube

Key Concepts

  • A dozen is a group of 12.
  • Half a dozen is a group of 6.
  • Counting by ones, twos, and groups to find the total number of items.

Learning Objectives

  • Students will be able to identify a dozen objects.
  • Students will be able to identify half a dozen objects.
  • Students will be able to count groups of objects to determine if they represent a dozen or half a dozen.

Educator Instructions

  • Introduction (5 mins)
    Begin by asking students if they've ever heard the word 'dozen.' Show them a picture of eggs in a carton and ask if they know how many eggs are usually in a full carton. Explain that today's lesson will teach them what a dozen and half a dozen mean.
  • Video Viewing (7 mins)
    Play the YouTube video: 'Grade One: Math Lesson # 104 Identifying Dozen and Half Dozen.' Encourage students to pay close attention to how Mrs. Lawson counts the eggs and explains the terms 'dozen' and 'half a dozen.'
  • Discussion and Examples (8 mins)
    After the video, discuss what students learned. Ask them to name other things that might come in dozens (e.g., donuts, cookies). Use real-life examples and visual aids to reinforce the concept. Show examples of both full and half cartons of eggs (or pictures of them).
  • Interactive Activity (10 mins)
    Have students work in small groups. Provide each group with a collection of small objects (e.g., LEGO bricks, buttons, toy cars). Ask them to create a group of a dozen and a group of half a dozen. Check their work and provide assistance as needed.
  • Wrap-up and Assessment (5 mins)
    Review the key concepts of a dozen and half a dozen. Ask students to share what they learned. Administer the multiple-choice and fill-in-the-blank quizzes to assess their understanding.

Interactive Exercises

  • Group Sorting Activity
    Provide each small group of students with a mixed collection of objects. Their task is to sort the objects into groups of a dozen and half a dozen.
  • Drawing Dozens
    Have students draw pictures representing a dozen of different objects (e.g., a dozen apples, a dozen stars).

Discussion Questions

  • What does the word 'dozen' mean?
  • Can you name something else you might buy in a dozen?
  • How many things are in half a dozen?

Skills Developed

  • Counting skills
  • Understanding quantity
  • Problem-solving

Multiple Choice Questions

Question 1:

How many things are in a dozen?

Correct Answer: 12

Question 2:

How many things are in half a dozen?

Correct Answer: 6

Question 3:

Which one shows a dozen apples?

Correct Answer: 🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎

Question 4:

If you have 6 cookies, do you have half a dozen or a dozen?

Correct Answer: Half a dozen

Question 5:

Which of these is NOT a dozen?

Correct Answer: 10 pencils

Question 6:

You have a dozen eggs. You use half a dozen for baking. How many eggs are left?

Correct Answer: 6

Question 7:

Which is more? A dozen or half a dozen?

Correct Answer: A dozen

Question 8:

Mom buys a dozen bananas. She eats 2. How many are left?

Correct Answer: 10

Question 9:

Which shows half a dozen?

Correct Answer: ⭐⭐⭐⭐⭐⭐

Question 10:

If you have 2 groups of half a dozen, how many do you have in total?

Correct Answer: 12

Fill in the Blank Questions

Question 1:

A ______ is a group of 12.

Correct Answer: dozen

Question 2:

Half a dozen is ______.

Correct Answer: 6

Question 3:

There are 12 eggs in a ______.

Correct Answer: dozen

Question 4:

6 + 6 = ______

Correct Answer: 12

Question 5:

If you have a dozen cookies and eat 3, you have ______ left.

Correct Answer: 9

Question 6:

Half of 12 is ______.

Correct Answer: 6

Question 7:

A dozen pencils is ______ pencils.

Correct Answer: 12

Question 8:

If you buy a dozen donuts and give half away, you gave away ______ donuts.

Correct Answer: 6

Question 9:

12 is the same as one ______.

Correct Answer: dozen

Question 10:

If you have half a dozen apples, you have _______ apples.

Correct Answer: 6

Educational Standards

CCSS.Math.Content.1.OA.A.1:Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem. CCSS.Math.Content.1.OA.C.5:Relate counting to addition and subtraction (e.g., by counting on 2 to add 2). CCSS.Math.Content.1.NBT.A.1:Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.

Teaching Materials

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