Lesson video

Hi there.

My name's Mr Bryne-Smith.

And today we're going to be doing some spelling together.

I'm really looking forward to it.

It's going to be lots of fun.

In particular, we're going to look at the suffix -ous.

Come along and join me.

Here's the agenda for today's lesson.

First, we're going to learn some key vocabulary.

Then we'll investigate and generate rules.

After that, we'll set the spelling words for this unit.

In this lesson, you'll need an exercise book or paper, a pencil, and of course your brain.

If you need to run off and get any of these things, pause the video and do that now.

Let's run through some key vocab.

tab.

Suffix.

A suffix, is a group of letters at the end of a word that changes meaning and sometimes class.

Adjective.

An adjective is a word that describe a noun.

It tells you what it's like.

Noun.

A noun is a person, place or thing.

Root word.

A root word is the most basic version of a word before any prefixes or suffixes have been added on.

Let's investigate and generate some rules for today's lesson.

In today's lesson, we're going to be looking at the -ous suffix.

This is a suffix that turns nouns into adjectives.

It generally means, full of.

Sometimes, words which make use of the -ous suffix, don't have an obvious root.

They do have a root, but often it's rooted in another language, and therefore it's not familiar to us.

When this is the case, you have to rely on your knowledge of how the word sounds, in order to spell it.

Here's an example.

Tremendous.

There's no obvious root to this word.

However, when I say out loud, there are some really helpful and obvious pointers.

Tremendous.

I know that the suffix is spelled O-U-S.

So when I hear the -ous sound at the end, I know how to spell it.

Here's an example, of a root word which is obvious.

Fury becomes furious.

When there is an obvious root word, there are a few rules that we can apply in order to understand how to spell words ending in the -ous.

Let's run through the rules for adding the suffix -ous.

The first is just add -ous.

Sometimes it's possible to add -ous onto a root word without making any changes.

The second, is change -our are to -or and then add -ous.

The third, is removed the 'e' and add -ous.

And the fourth is remove the 'y' add 'i', and then add -ous.

Let's look at the first of those four rules.

Add the -ous suffix to the root to form an adjective.

Here's our root word.

It's danger.

When we add the -ous suffix, using this rule, we don't have to make any changes.

I like you to have a go.

Pause the video and have a go.

Okay, great.

Danger becomes dangerous.

And there you can see no change has made to the root in order to add -ous.

New word, mountain.

Pause the video and a have a go.

Okay.

Mountain becomes mountainous.

Once again, the -ous suffix has been added without any changes to the root word.

The second of our four rules.

If the root ends in -our, change it to -or and add -ous.

Let's try it out on this root word, glamour.

Remember before adding -ous, we must change the -our at the end to or.

Pause the video and have a go.

Okay.

Glamour becomes glamorous.

And there you can see, my -our has become -or.

Let's have a go with another word.

Humour.

Pause the video, and have a go.

Okay.

Humour becomes humorous.

Once again -our being changed -or before -ous is added.

Let's have a look at our third rule.

If the root ends in -e, remove the 'e' and add -ous.

And here's our root.

Adventure.

And sure enough, it ends in -e.

I'd like you to try to add the -ous suffix.

Pause the video, and have a go.

Okay.

Adventure becomes adventurous.

And there's the correct spelling with the 'e' removed.

Let's have a go with fame.

Pause the video and have a go.

Okay.

Fame becomes famous.

And there's our correct spelling.

The 'e' has been removed.

However, if a root word ends in -ge, we do something slightly different.

If the root ends in -ge, just add -ous without removing the 'e'.

So courage becomes courageous.

And there you can see, our 'e' has been left in.

How about you to have a go with outrage.

Pause the video now, and have a go.

Okay.

Outrage becomes outrageous.

This is our fourth rule.

If the root ends in -y, remove the -y, replace it with an 'i' and add -ous.

Here we have a root word fury that ends in 'y'.

I like you to pause the video, and have a go at adding the -ous suffix? Pause the video now, and have a go.

Okay.

Fury becomes furious.

And there's our 'i' which replaced the 'y'.

Have it go with our next word.

Vary.

Pause the video now.

Okay.

Vary becomes various.

And there's the 'i' in place of the 'y'.

In this next challenge, your task is to identify which rule we need to apply to our root word.

When you've done that, I'd like you to try adding the -ous suffix.

Our first word is vary.

Pause the video now and have a go.

Okay.

Vary makes use of the, remove the 'y' rule.

Very end in a 'y', therefore, before we add -ous, we must remove the 'y' and add an 'i'.

Vary becomes various.

Let's try with our next word.

Continue.

Pause the video and have a go.

Okay.

In this instance, the rule that applied is this one.

Continue becomes continuous.

And you can see that I've removed the 'e' before adding -ous.

Next word.

Poison.

Pause the video and have a go.

This is the rule that applies.

In this instance we just need to add -ous.

Poison becomes poisonous.

Our next word is odour.

Odour is a word which means smell.

Generally bad.

Pause the video and have a go.

Okay.

The rule which applies is this one.

Odour ends in -our.

Therefore we must remove the -our, and replace it with -or before adding -ous.

Odour becomes odorous.

Which means smelly.

Let's set the spelling words for this week's test.

The first spelling, is serious.

For each spellings, I'm going to put them into a sentence.

So listen very carefully.

Serious.

He had a serious look on his face as he gazed out the window.

The next word is hazardous.

Hazardous.

The area was very hazardous because of all of the broken glass.

Word number three is dangerous.

Dangerous.

The dangerous game had to be banned because of all the accidents.

Number four, mountainous.

Mountainous.

South America is very mountainous in parts.

Remember the -ous suffix means full off.

So something is mountainous, if an area is mountainous, it's full of mountains.

Number five, humorous.

Humorous.

The teacher was known for her humorous lessons.

Humorous makes use of the word humour, and therefore if something or someone is humorous, it means they're very funny.

The next word is glamourous.

Glamourous.

The glamorous film star just loves having his photo taken.

The next word is famous.

Famous.

The famous band stepped out of the limo to their adoring fans.

The next word is continuous.

Continuous.

They got caught in a continuous downpour of rain.

If something's continuous, it seems to go on and on and on.

The next word is various.

Various.

He brought various outfits on holiday in case the weather changed.

The next word is furious.

Furious.

The kids were furious when they found out that golden time had been cancelled.

I'm not surprised.

Okay.

There are our spelling words for this week.

When you practise these words, it's really important that you do little and often.

That means doing a few minutes a day, rather than doing loads all in one go.

Little and often is much more effective.

Congratulations.

These are the things we've done in today's lesson.

We've looked at key vocabulary.

We've investigated and generated rules.

And we set spelling words.

Well done for your hard work.

I'm very impressed.

This is a really useful spelling rule, and I'm glad you're getting a chance to practise it.

Bye.