This video lesson is designed for children 3-6 years old. In this video, we will learn Numbers 1-20 using American Sign Language (ASL). ASL is primarily used for communication by physically challenged children.

It allows the child to understand and sign numbers between 1-20 in American Sign Language, using hand and face movements.


What is American Sign Language?

American Sign Language (ASL) is a sign language with the same linguistic properties as spoken languages but with a different English language. ASL is primarily used to communicate with children who are deaf or hard of hearing. 


However, any child can learn ASL. A child who can communicate in both sign and spoken language has a bilingual advantage. It is a powerful tool to help children learn the language, vocabulary, core educational concepts, and more. ASL and spoken English both offer verbal, visual, and physical learning methods that encourage learning. 


Benefits of learning American sign language:

  1. It helps to reduce tantrums and frustrations when children find it difficult to communicate.
  2. It promotes early language development. 
  3. It stimulates brain development and enhances memory as they learn and remember a lot of new words. 
  4. It builds vocabulary.
  5. It develops fine and gross motor skills. 
  6. It develops confidence and self-esteem.  


How to Sign numbers 1- 20 in American Sign Language?

Watch the video to learn how to sign numbers 1-20.


  • One – To sign number one, lift the index finger.
  • Two – To sign number two, lift and extend the index and middle finger.
  • Three – To sign number three, extend the thumb, index, and middle finger.
  • Four – To sign number four, extend all four fingers except the thumb.
  • Five – For sign number five, extend all five fingers.
  • Six – To sign number six, bring together the thumb and pinky finger with the remaining fingers extended.
  • Seven – To sign number seven, bring the thumb and ring finger together with the remaining fingers extended.
  • Eight – To sign number eight, bring the thumb and middle finger together with the remaining fingers extended.
  • Nine – To sign number nine bring the thumb and index finger together with the remaining fingers extended.
  • Ten – To sign number ten, make a fist and wave the thumb.
  • Eleven – To sign number eleven, open the index finger with the palm facing you.
  • Twelve – To sign number twelve, open the index and middle finger with the palm facing you. Repeatedly flick the “two” fingers off the thumb.
  • Thirteen – To sign number thirteen, repeatedly bend the “two” fingers while the thumb pointing out.
  • Fourteen – To sign number fourteen, repeatedly bend the “four” fingers while keeping the thumb inside the palm.
  • Fifteen – To sign number fifteen, repeatedly bend the “four” fingers while the thumb pointing out.
  • Sixteen – To sign number sixteen, make the sign for “six,” repeatedly moving it left and right.
  • Seventeen – To sign number seventeen, make the “seven” sign and move it repeatedly from left to right.
  • Eighteen – To sign number eighteen, make the sign for “eight” and repeatedly move it from left to right.
  • Nineteen – To sign the number nineteen, make the sign for “nine” and move it repeatedly from left to right.
  • Twenty – To sign the number twenty, repeatedly “snap” the index finger and thumb together.

Tips to remember:

  • For numbers 1-5, it’s best practice to sign them with your palm facing you and the back of your hand facing the people you’re signing showing the numbers. 
  • Some numbers share identical signs to alphabets. For example two with the letter ‘v’ and three with the letter ‘w’. Differentiate them by doing subtle motions (like tapping fingers together to indicate the number) and clarify that it doesn’t mean the alphabet variant of the sign.


Let the child repeat this exercise along with the video and sign the numbers using different hand movements. To make the activity more fun, invite your child to count colorful beads using the ASL.


For more American sign language lessons, visit:

  1. Alphabets
  2. Colors
  3. Days of the week


For more language resources, visit:

Video created by: Pocatello Valley Montessori (Idaho)





  • American Sign Language
  • English
  • Language
  • primary