The OI Sound

Jul 30, 2023

3 min read

The /oi/ sound is called a diphthong. A diphthong is a vowel sound made by combining two vowel sounds. It is different from a digraph in which two letters combine to make one sound. For example, the ea in beat is a digraph because it is making the long /e/ sound.

There are two ways to spell the /oi/ sound. We use the letters oi to spell the /oi/ sound in the middle of a syllable.

Introducing the OI Sound

Look at the pictures below. Pay attention to the letters making the /oi/ sound.

The letters oy make the /oi/ sound at the end of a syllable. Notice that the end of a syllable may not be the end of a word.

Look at the pictures below. Pay attention to the letters making the /oi/ sound.

Practice the OI Sound

The best way we can remember the sounds letters make is to practice. Our Learning to Read workbook has cards you can use to practice with the /oi/ sound. You can also make your own notecards to practice letters and sounds. Just a few minutes of practice a day will make a huge difference!

Reading Words

Congratulations! You can now read more words! You can practice reading the words on the chart.

Writing Practice

You can also practice writing words with the /oi/ sound. Make sure you follow explicit handwriting instructions to ensure you are writing efficiently. Writing efficiently is a huge part of building writing stamina.

Video Guidance

Check out our video about the /oi/ sound!

You can use this video to prepare for a lesson with your student, or your student can work with the video independently.

LEARNING TO DECODE PROGRAM

Take your learning to the next level with our Learning to Read Workbook!

Learning to read is a systematic process that requires explicit instruction. Our learning to read program breaks down every sound students need to know to learn how to read. Every step of the program includes picture examples, sound practice, reading practice, and writing practice.

The best part of the program is that anyone who is a competent reader can help a student through the program. Use our webpages, videos, and the pages in the workbook to guide your student’s learning. Students work through the program at their own pace. This is a perfect supplement to what students are learning in school.