Word Study - Vowel Diphthongs - Grade 4

Which pair of words has the same sound as ou in the word about?

• choice, boycott

• allow, sour

• decoy, snow

• poison, boundary

Answer explanation

The 'ou' in 'about' sounds like the 'ou' in 'allow' and 'sour'. Both pairs share the same vowel sound, while the other choices have different sounds for 'ou'.

What vowel sound do you hear in the word browser?

• ou

• oi

Answer explanation

In the word 'browser', the vowel sound is represented by 'ou', pronounced like 'ow' in 'cow'. The 'oi' sound is not present in 'browser', making 'ou' the correct choice.

What vowel sound do you hear in the word voyage?

• ou

• oi

Answer explanation

In the word 'voyage', the vowel sound is represented by 'oi'. This is because the 'oy' in 'voyage' produces the same sound as 'oi' in words like 'coin', making 'oi' the correct choice.

Which of the following words uses the vowel diphthong sound oi?

• voyage

• boundary

• outline

• coward

Answer explanation

The word 'voyage' contains the vowel diphthong sound 'oi', pronounced as /ɔɪ/. The other options do not feature this sound, making 'voyage' the correct choice.

What is the vowel sound in the word allow?

• oi

• ou

Answer explanation

The vowel sound in 'allow' is represented by 'ou', as in 'how' or 'now'. The 'oi' sound is not present in 'allow', making 'ou' the correct choice.

What two letters represent two vowel sounds blending together in the word boil?

Answer explanation

In the word 'boil', the two letters 'oi' represent the blending of the vowel sounds. This diphthong creates the unique sound found in the word, making 'oi' the correct answer.

What two letters represent two vowel sounds blending together in the word announce?

Answer explanation

In the word 'announce', the letters 'ou' represent the blending of two vowel sounds, creating the diphthong sound. This combination is crucial for the pronunciation of the word.

Tags

CCSS.RF.4.3A

Which pair of words has the same sound as ou as in the word allow?

• exploit, without

• decoy, proud

• ouch, coward

• choice, sour

Answer explanation

The pair 'ouch' and 'coward' both contain the 'ou' sound similar to 'allow'. In contrast, the other options do not share this pronunciation, making 'ouch' and 'coward' the correct choice.

Sort each word by whether the diphthong makes the ou sound or the oi sound:

Groups:

(a) ou

,

(b) oi

• announce

• browser

• ouch

• poison

• decoy

• toil

• voyage

• outline

• foundation

• choice

Which of the following words uses the vowel diphthong sound oi?

• cry

• decoy

• float

• trout

Answer explanation

The word 'decoy' contains the vowel diphthong sound 'oi', pronounced as in 'boy'. The other options do not have this sound: 'cry' has 'i', 'float' has 'oa', and 'trout' has 'ou'.