Number Order Adventure: Ascending and Descending with Numbers 1-20!

Math Grades 1st Grade 8:09 Video
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Lesson Description

Let's learn about the order of numbers from 1 to 20! We'll discover how to count up and down, identify what comes next, and fill in missing numbers. Get ready for a number adventure!

Video Resource

Learn Grade 1 - Maths - Order of Numbers 1 to 20

KidsClassroom - Nursery Rhymes & Kids Songs

Duration: 8:09
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Key Concepts

  • Counting in ascending order (smallest to largest)
  • Counting in descending order (largest to smallest)
  • Identifying the number that comes after a given number
  • Filling in missing numbers in a sequence

Learning Objectives

  • Students will be able to count forward from 1 to 20.
  • Students will be able to count backward from 20 to 0.
  • Students will be able to identify the number that comes after a given number within 20.
  • Students will be able to fill in missing numbers in a sequence of numbers from 1 to 20.

Educator Instructions

  • Introduction (5 mins)
    Begin by asking students what they already know about counting. Show the 'Number Order Adventure' video to introduce the concept of ordering numbers from 1 to 20. Point out the number snake from the video and explain that we'll be learning how to complete it ourselves.
  • Ascending Order (10 mins)
    Explain ascending order means counting from the smallest number to the biggest number. Start with 0 and count up to 20 as a class, using fingers or manipulatives to aid in counting. Use visual aids like a number line or chart.
  • Descending Order (10 mins)
    Explain descending order means counting from the biggest number to the smallest number. Start with 20 and count down to 0 as a class. Emphasize the change in direction and pace of the counting. Again, use visuals.
  • What Comes Next? (10 mins)
    Practice identifying the number that comes after a given number. Write a number on the board (e.g., 7) and ask, 'What number comes after 7?' Repeat with different numbers within the range of 1 to 20. Use the examples from the video.
  • Fill in the Missing Numbers (10 mins)
    Provide worksheets with number sequences that have missing numbers. Have students fill in the missing numbers to complete the sequences. Do some examples together as a class before having them work independently.
  • Wrap-Up (5 mins)
    Review what was learned in the lesson: counting up and down, what comes next, and filling in missing numbers. Briefly discuss how these skills are useful in everyday life.

Interactive Exercises

  • Number Line Hop
    Create a large number line on the floor with masking tape. Have students take turns hopping along the number line, counting up or down as directed.
  • Missing Number Game
    Write a sequence of numbers on the board with one number missing. Have students raise their hands to guess the missing number. Increase the difficulty by having more missing numbers.

Discussion Questions

  • Can you think of times when you need to know the order of numbers?
  • What is easier for you, counting up or counting down? Why?
  • What happens if we count numbers in the wrong order?

Skills Developed

  • Counting skills
  • Number recognition
  • Sequencing
  • Problem-solving

Multiple Choice Questions

Question 1:

What number comes after 5?

Correct Answer: 6

Question 2:

When we count from smallest to biggest, it is called?

Correct Answer: Ascending Order

Question 3:

What number comes before 10?

Correct Answer: 9

Question 4:

What number is missing: 2, 3, __, 5?

Correct Answer: 4

Question 5:

When we count from biggest to smallest, it is called?

Correct Answer: Descending Order

Question 6:

What number comes after 15?

Correct Answer: 16

Question 7:

Which number is the smallest?

Correct Answer: 1

Question 8:

What number comes before 5?

Correct Answer: 4

Question 9:

Which number is the biggest?

Correct Answer: 12

Question 10:

What number is missing: 17, __, 19, 20?

Correct Answer: 18

Fill in the Blank Questions

Question 1:

The number after 8 is ____.

Correct Answer: 9

Question 2:

The number before 3 is ____.

Correct Answer: 2

Question 3:

When we count from 1 to 10, we are counting in __________ order.

Correct Answer: ascending

Question 4:

The missing number is: 11, 12, ____, 14

Correct Answer: 13

Question 5:

When we count from 10 to 1, we are counting in __________ order.

Correct Answer: descending

Question 6:

The number after 19 is ____.

Correct Answer: 20

Question 7:

The number before 1 is ____.

Correct Answer: 0

Question 8:

The number that comes after 13 is ____.

Correct Answer: 14

Question 9:

The missing number is: 6, ___, 8, 9

Correct Answer: 7

Question 10:

The number that comes before 16 is ____.

Correct Answer: 15

Educational Standards

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. 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.OA.C.6:Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).

Teaching Materials

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