New
New
Year 6

Spelling words with the suffix -ous and -tious

I can spell words with the suffix -tious.

New
New
Year 6

Spelling words with the suffix -ous and -tious

I can spell words with the suffix -tious.

Lesson details

Key learning points

  1. If the root word ends in 'tion', use the suffix -tious.
  2. Exceptions or harder root words include: fictitious.
  3. The suffix -tious generally turns a noun into an adjective.
  4. How to spell the curriculum words: conscious and embarrass

Keywords

  • Suffix - a letter or group of letters added to the end of a root word

  • Root word - the base word from which other words are formed often by adding prefixes or suffixes

  • Noun - a person, place or thing

  • Adjective - describes a noun

Common misconception

You can hear the 'ee' in all words ending in -ious and -eous.

You cannot hear the 'ee' in words ending -geous, like 'courageous' (the 'e' is making the 'soft g' sound).

You can set the words for children to practise independently based on your knowledge or allow them to select themselves. Help them to identify independent practice strategies which are efficient and effective.
Teacher tip

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

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6 Questions

Q1.
Match the word to the suffix below.
Correct Answer:singing,-ing

-ing

Correct Answer:painted,-ed

-ed

Correct Answer:highest,-est

-est

Correct Answer:critical,-al

-al

Q2.
What word class is the word nervous in this sentence? "The nervous girl tiptoed through the door."
noun
Correct answer: adjective
verb
adverb
Q3.
What word class is the word adventure in this sentence? "The knight was ready for an adventure."
verb
Correct answer: noun
adjective
adverb
Q4.
Select all the words containing the suffix -ous.
mouse
Correct answer: courageous
Correct answer: poisonous
housing
Correct answer: dangerous
Q5.
What word class is 'cautious' in this sentence? He took one cautious step towards the edge.
noun
verb
Correct answer: adjective
adverb
Q6.
What word class is 'hazardous' in this sentence? The ice made the ascent particularly hazardous.
noun
Correct answer: adjective
verb

6 Questions

Q1.
When the word 'courage' becomes 'courageous' what rule is applied?
Correct answer: Just add -ous.
Remove the ‘e’, add -ous.
Remove the ‘y’, add -ious.
Change ‘our’ to ‘or’, add -ous.
Q2.
When the word 'humour' becomes 'humorous' what rule is applied?
Just add -ous.
Remove the ‘e’, add -ous.
Remove the ‘y’, add -ious.
Correct answer: Change ‘our’ to ‘or’, add -ous.
Q3.
When the word 'fame' becomes 'famous' what rule is applied?
Just add -ous.
Correct answer: Remove the ‘e’, add -ous.
Remove the ‘y’, add -ious.
Change ‘our’ to ‘or’, add -ous.
Q4.
When the word 'vary' becomes 'various' what rule is applied?
Just add -ous.
Remove the ‘e’, add -ous.
Correct answer: Remove the ‘y’, add -ious.
Change ‘our’ to ‘or’, add -ous.
Q5.
When the word 'caution' becomes 'cautious' what rule is applied?
Just add -ous.
Remove the ‘e’, add -ous.
Change ‘our’ to ‘or’, add -ous.
Correct answer: Remove the 'tion', add -tious.
Q6.
Correct the spelling of the word in bold in this sentence. I was resting, but I was conshious of the conversations around me.
Correct Answer: conscious

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