Purchase a recorder from a music shop. If the children are young, you can get a special child's recorder that is smaller and easier for them to handle.
Navigate to the Music K-8 website in your Internet browser, and open the Interactive Recorder Fingering Chart. (See Resource 1)
Sit your children in front of the computer screen, and select each note one at a time. Have them practice playing each note a few times before you select the next one.
Go to the Nine Note website in your Internet browser, and select "Learn to Play Recorder Now!" (See Resource 2)
Print out the free music sheets offered on the website.
Click the link below the sheet music to open part one of the YouTube instructional tutorial.
Have your children follow along with the video in order to learn the basic notes.
Select the second video from the Nine Note page after they have completed the first tutorial. Have the children play along with it.
Visit an online sheet music site like 8notes.com or free-scores.com, and print off some recorder sheet music. Beginner songs include "Mary Had A Little Lamb," and "Twinkle, Twinkle, Little Star."
Have children practice the songs, looking back on their printed instructions and videos whenever necessary.
Visit your local library and look for instructional books and videos. Many libraries have sections on music specifically for children, featuring material with helpful lessons and even sheet music.