Lesson video
In progress...Loading...
Hello, everybody.
Welcome to today's lesson.
My name is Mrs. Richards.
And in our session, we are going to investigate the suffixes, -able and -ible.
I know that you'll really enjoy the challenge.
So let's get started.
So we're going to start our lesson by exploring our key vocabulary, then we're going to investigate and generate rules, and finally set us spelling words.
In this lesson you will need, an exercise book or paper, a pencil, and definitely your brain.
So go and get any resources now.
Okay, let's get started.
Here's our key vocabulary.
My tenure 10, adjective, adjective, an adjective is a describing word.
Root, root.
A root is the most basic version of a word onto which the prefix or suffix is attached.
Suffix.
Suffix.
A suffix is a group of letters at the end of the word that changes meaning, and sometimes its word-class.
Can you remember those? Pause the video and decide which term describes each of these definitions off you.
Okay.
Should we see how you have done? An adjective was a describing word, a root was the most basic version of a word onto which a prefix or suffix is attached.
And yes, a suffix is a group of letters at the end of a word chain.
Okay.
Let's investigate and generate some rules together.
So I'm going to read you the words on the board, and then I'm going to ask you to pause the video and work out what these words have in common.
let's read them together first, reasonable, reasonable.
It is reasonable to say please and thank you.
Excitable.
The child was very excitable before their party Available.
I hope that you are available tomorrow.
Possible.
It is possible to fly to the moon.
Incredible.
Your spelling is incredible.
Reliable.
My brother is very reliable because he can always be trusted.
Okay.
Pause the video and tell the screen what these words have in common.
Okay.
How did you get on, could you spot anything that you could hear that these words might have in common? Or was there anything that you could see in the spelling, that these words might have in common? Perhaps they had a word class in common.
Let's have a look.
All of these words had an -able or an -ible suffix on the end.
You could hear these things and see them.
Four words use the -able suffix, and two words used -ible.
The suffix -able and -ible form adjectives.
And so all of the words on our board were describing words.
Okay.
Can we sort these words into two groups, based on their spelling, here are your words again, reasonable, excitable, reliable, available, possible, and incredible.
Write the words down and sort them into two groups, according to their spelling.
Off you go.
Well done.
Let's see how you got on.
Here is how I decided to group my words.
I grouped all of the -able suffixes together and all of the ible suffixes together.
What can we tell straight away from our list? I wonder, which is the most common spelling of this suffix.
Yes.
It's -able.
You're exactly right.
In our example, we have four words that have a b l e on the end, and only two that use i b l e.
able is the most common spelling of the suffix.
So if you're writing and you're not sure which one to use able is always your best bet.
Okay.
Let's break this down and look in more detail.
So the spelling a b l e is our most common spelling.
It's our best bet.
And in fact, any new words that are created in our language always use a b l e as their suffix.
i b l e is no longer used to create new words, a word that you uses a b l e is more likely to have a root word, which we can recognise in English.
This isn't always true, but it's a good guide to help us.
If you can spot a root word, that word within a word, and it makes sense in English, then you're probably going to need a b l e at the end, i b l e is used for older words.
And because there are no new words in our language being created, with the suffix i b l e, this number is limited.
There are approximately 180 words that use the suffix i b l e and that number is not increasing.
So if you were very keen, you could go and learn those 180 words and you'd know that all of the others were always going to use a b l e.
When we use i b l e, we're more likely to have a root word which ends in s.
And we're more likely to have a root word, which we might not recognise in English.
Have a look at the examples here.
Possible.
Well, the root that I can see is poss, it doesn't make sense by itself, and it also ends in s, that's a good guide.
I'm going to need to use i b l e, how about the next one? Incredible, incred? Incred doesn't make sense by itself.
So it's more likely to need the i b l e suffix.
Okay.
Let's practise some examples together.
I want you to listen to these words and see if you can hear the root.
Can you hear the word within a word? That's going to give us a clue about which spelling to use.
Here's the first word.
Are you ready? Sensible.
Sensible.
Can you hear a word within the word? I'll say the word one more time.
Then I want you to pause the video and tell the screen the word that you can hear.
What's the root and see if you can work out which suffix we need.
Sensible.
Pause and have a go.
Okay.
What could you hear within that word sensible? Was there a word within a word? Hopefully you could hear sense, sensible, sense.
And so, because sense has that s, towards the end, I'm going to need to use i b l e.
Okay.
Should we try another? Here's your next word.
Understandable.
Understandable.
Can you hear a word within a word? If you can hear the root, see if you can identify which spelling you need.
Pause the video and have a go.
Okay.
I think this one was a bit easier.
Understandable.
You should have been able to hear understand.
Yes, and understand is the word that makes sense by itself.
It's a root that I can understand in English.
And so I think I'm going to need a b l e.
Should we see if I'm right? Yes.
Understandable with the a b l e spelling of the suffix.
Let's try another.
Reliable, reliable.
Can you hear a word within a word? If so, can you work out which suffix we'll need.
Reliable.
pause the video and have a go.
Okay.
What could you hear inside reliable? I could hear the word rely, rely, rely.
Now that makes sense by itself.
It doesn't end in s.
So I think we have to use the suffix a b l e.
Should we see if I'm right? Yes, we do.
This spelling uses a b l e, but look, what else has happened? The root word rely ended in a Y.
And when I changed this into the adjective, reliable, the y became an i, this is the pattern, which I often see when I add suffixes, the root words ending in Y.
We do exactly the same when we add ed, or when we add ble.
The same is true here.
When we're adding a suffix and the root word ends in a Y.
We need to change it to an i before adding our suffix.
Should we try another? Here's your word.
Noticeable.
Noticeable.
Can you hear a word within a word? Can you hear a root? If so, point to the spelling that you think we should use on the board.
Off you go.
Okay.
What could you hear in noticeable? I could hear the word notice.
Now.
Watch what happens when we add the suffix.
Yes.
It's going to use the suffix a b l e because notice had an English root.
It made sense by itself.
And look, what else has happened here? Something quite unusual.
Do you remember when we looked at the word rely becoming reliable, and we said those rules, about adding suffixes, are still true.
A Y changes to an i before we add our suffix.
But whereas normally we'd remove the letter E before adding a suffix.
Here, we keep it.
If we removed the letter E, the word would sound a little bit different.
Listen.
No-tick-able.
No-tick-able I need the E there.
The E helps to create a soft C.
It sounds now like no-tiss-able.
So I need the E if I want to keep that soft C.
The same is true for these words, replace and replaceable.
In replaceable I need to keep that E.
the same is true for this one; change and changeable.
I don't want a hard c, I want a soft one, and so I have to keep that E.
Okay.
Ready for our next word? Invincible, invincible.
The superhero was invincible.
Nobody could beat him.
Can you hear a word within a word? What can you hear inside invincible? Is there a root that you recognise or not? Tell the screen and choose the correct spelling of the suffix.
Off you go.
Okay.
Let's see how you got on.
Invincible.
I can't hear a suffix that I recognise.
There's not a root word there that makes sense in English by itself.
So invincible must need the spelling i b l e.
Look here, we also have that soft C that we were discussing before, invincible.
Yes, good spot.
Next word, accessible.
Accessible.
Can you hear a word within a word? I wonder how it ends.
I wonder if it makes sense by itself.
Tell the screen the root word and point to the correct spelling.
Off you go.
Okay.
Are you ready for this one? Inside accessible I can hear access.
Now, access makes sense by itself.
It's a word in English that I can recognise, but it also ends in s.
I wonder which spelling we're going to use.
Yes.
It's i b l e.
This is tricky and choosing between the spelling, a b l e, and i b l e can be hard.
And that's okay.
The thing that makes us better at spelling is taking an interest in words, looking at them closely.
And sometimes we're going to make mistakes.
I make mistakes with my spelling all the time, but that's okay.
As long as I practise, as long as I'm attentive to how words are spelled, I can keep getting better.
Next one.
Are you ready? Vulnerable, vulnerable.
I wonder if you've read this word before or, or written it.
I love the word vulnerable.
It's so interesting and so good to use in our writing.
Here's an example of how it might be used in a sentence.
The baby was vulnerable and needed someone to care for it.
Someone or something that is vulnerable is someone or something that can't help themselves.
They need care by someone else.
They might be very young or they might be in danger.
The word is vulnerable.
Can you hear a root word? Are there any clues about which spelling to use, pause and tell the screen your ideas.
Okay.
Let's have a look.
Vulnerable.
I can't hear a root word.
So I assume that my ending would be i b l e.
Shall we see, oh, here it's a b l e.
That's okay.
It's another challenging example.
As long as we're looking closely at the words, then it'll help us to remember it for next time.
Vulnerable has the spelling a b l e.
Okay.
But just for the next one, inevitable.
Inevitable.
Hmm.
Can you hear a word within a word? If you can hear a root, would that help you to work out which spelling to use? Here's the word one more time.
Inevitable.
Tell the screen your ideas.
Off you go.
Okay, shall we have a look? I can't hear a root word within inevitable.
No.
So assume the spelling must be i b l e, but it might be an exception just like before.
Should we have a look? Yes.
It's another exception.
Inevitable has a b l e as its spelling.
Of course, there are always exceptions.
And the best thing we can do is learn them and then try to apply the rules the rest of the time.
Let's look at the meaning of inevitable, I'll put it into a sentence for you.
It will rain over the next few days.
That is inevitable.
Yes.
When we live in England, most of the time that is inevitable.
Inevitable is something which is definitely going to happen in the future.
Well done.
You've done really well so far.
So let's have a look at our spelling words.
These are words which have come up throughout today's session.
I'm going to read you the words and we're going to put it into a sentence.
And what you need to do is pause the video after each word and write it down.
Be really careful when you're copying down these spellings, make sure that you're copying them accurately because you don't want to learn the wrong spelling of a word.
Okay.
Are you ready? Number one, sensible.
Sensible.
The child was very sensible and could always be trusted.
Number two, incredible, incredible.
I had an incredible day out at the beach.
Pause the video whenever you need to.
You're doing really well.
Number three, invincible, invincible.
The superhero was invincible because nobody could beat him.
Pause the video.
If you need to.
Number four accessible, accessible.
The theatre was accessible in my wheelchair.
I could get in easily, pause the video if you need to.
Number five, reasonable, reasonable, please listen to adults.
They are being very reasonable.
Pause, if you need to.
Pause, if you need to.
Number six, reliable, reliable.
My friend is reliable and I can always trust her.
Pause if you need to.
I am available to chat any time today.
I am available to chat any day.
Pause if you need to, number eight, noticeable, Pay careful attention here when you're copying down this word, look out that's soft C, with an E after it.
number nine, vulnerable vulnerable.
The young child was very vulnerable and needy.
writing down this word vulnerable, remember, this was one of the two exceptions which we looked at today.
This was one of the two exceptions which we looked at today.
It ends in a b l e, even though we can't recognise the root word in English is towards the beginning of the word can be tricky.
We don't always say them very clearly now vulnerable.
It can be hard to hear every letter within that word.
So be really attentive when you're copying it.
And when you're practising it last one, number 10, inevitable, inevitable.
It is inevitable that it will rain soon.
Here's another one of our exceptions, the root word Isn't recognisable in English, but it still ends a b l e.
Okay, well done for today's study lesson.
You have done brilliantly.
I look forward to seeing you again, next time.
Bye.
