Number Ninjas: Ordering to 20 and Adding One More!

Math Grades 1st Grade 10:16 Video
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Lesson Description

Learn to put numbers in order from 1 to 20 and discover the magic of adding one more with Mrs. Lawson!

Video Resource

Grade 1: Math Lesson #32 Ordering Numbers To 20, Adding 1 To A Number

The Eagle's Nest - Our Online Classroom

Duration: 10:16
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Key Concepts

  • Counting from 1 to 20
  • Ordering numbers from 1 to 20
  • Adding one to a number

Learning Objectives

  • Students will be able to count from 1 to 20.
  • Students will be able to arrange numbers from 1 to 20 in the correct order.
  • Students will be able to add one to any number between 0 and 9.

Educator Instructions

  • Introduction (5 mins)
    Begin by counting from 1 to 20 as a class. Review what 'ordering' means, relating it to putting things in a line from smallest to biggest.
  • Ordering Numbers Activity (10 mins)
    Watch the video from 0:12-2:55. Pause the video at each number switch. Ask students to identify the incorrect numbers and explain why they are out of order. Have them verbally correct the order before resuming the video.
  • Ordering Teens Practice (5 mins)
    Watch the video from 2:55-3:40. Pause the video after each number is placed. Have the students predict the next number in the sequence.
  • Adding One More (10 mins)
    Watch the video from 3:40-5:55. Explain that adding one is like counting one step further. Use a number line (draw one on the board) to visually demonstrate adding one. Practice using flashcards as shown in the video from 5:55-7:00.
  • Number Line Game (5 mins)
    Watch the video from 7:00-end. Play a class game using a number line on the board. Call out a number and have students raise their hand to say what is one more. For example: "I'm on number 4, what is one more?" (Answer: 5)

Interactive Exercises

  • Number Card Sort
    Give each student a set of number cards (1-20). Have them mix up the cards and then put them back in order. For an extra challenge, have them close their eyes while a partner switches two cards, and then identify the mistake.
  • One More Jump
    Use a large number line on the floor. Call out a number and have a student stand on that number. Then, have them jump one space forward and say the new number.

Discussion Questions

  • What happens to the number when we add one more?
  • Can you think of times in your daily life when you need to put things in order?

Skills Developed

  • Number recognition
  • Sequencing
  • Addition

Multiple Choice Questions

Question 1:

What number comes after 5?

Correct Answer: 6

Question 2:

What number comes before 10?

Correct Answer: 9

Question 3:

What is 3 + 1?

Correct Answer: 4

Question 4:

What is one more than 7?

Correct Answer: 8

Question 5:

Which number is the smallest?

Correct Answer: 3

Question 6:

What number comes after 14?

Correct Answer: 15

Question 7:

What is one more than 0?

Correct Answer: 1

Question 8:

What is 9 + 1?

Correct Answer: 10

Question 9:

Which number is the biggest?

Correct Answer: 10

Question 10:

What number comes before 2?

Correct Answer: 1

Fill in the Blank Questions

Question 1:

1, 2, 3, 4, ____

Correct Answer: 5

Question 2:

One more than 6 is ____

Correct Answer: 7

Question 3:

10, 11, 12, ____

Correct Answer: 13

Question 4:

5 + 1 = ____

Correct Answer: 6

Question 5:

The number that comes before 8 is ____

Correct Answer: 7

Question 6:

16, 17, ____, 19

Correct Answer: 18

Question 7:

One more than 2 is ____

Correct Answer: 3

Question 8:

13, ____, 15, 16

Correct Answer: 14

Question 9:

The number that comes after 9 is ____

Correct Answer: 10

Question 10:

7 + 1 = ____

Correct Answer: 8

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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