Lesson video

Hello, everybody.

Welcome to today's lesson.

My name is Mrs. Richards.

And today we are investigating more prefixes.

Today's lesson is really interesting.

Let's get started.

In today's lesson, we are going to explore the key vocabulary that we need, investigate and generate rules and set spelling words.

In this lesson, you will need some paper, a pencil and definitely your brain.

So pause and get any of your resources now.

Okay.

Here is our key vocabulary for this lesson.

There are two key terms which I want us to explore, prefix and root.

Prefix means a group of letters at the beginning of a word that change its meaning.

Root is the most basic version of a word onto which the prefix is attached.

Can you remember those? A group of letters at the beginning of a word that change its meaning is called a prefix.

The most basic form of the word onto which the prefix is attached, that's called a root.

Well done.

To help us remember? Let's have a look at this word prefix in more detail.

In fact, let's explode our word.

Yes, the term prefix is made up of a prefix, acts as a prefix in the word prefix prefix has the prefix pre, which means before, and it comes from Latin.

The root of our word is fix and that means attach.

It also comes from Latin.

So prefix means attaching something before at the beginning of a word.

So today, we are going to look at prefixes in more detail.

The key thing to know is that the prefix itself has meaning and it changes the meaning of the root word.

Let's have a look.

Here are the four prefixes, which we are going to explore today bi, circum, tele and trans.

I wonder if you can work out already the meaning of any of these prefixes.

Okay? On the board in front of you there are three words.

I'm going to read you those words aloud.

Then I want you to pause the video and tell the screen the meaning of each of these words and spot something that these words have in common.

Here's our words, bilingual, bicycle, bisect.

Pause the video.

Okay.

What do these words mean? What did they have in common? Hopefully, you noticed that these words all began with the prefix bi and that prefix means two.

Have a look at the first word bilingual, bilingual means that you can speak two languages.

Bicycle refers to a vehicle with two wheels.

And bisect means to cut something into two.

Sometimes, when we're looking at root words, they're not always easy to understand.

Sometimes they make sense in English and sometimes they don't because they come from another language.

So you might recognise the root lingual.

You might recognise that as part of another word, lingual refers to languages.

It's an adjective.

You probably recognise the root word cycle.

You might not think that cycle means wheels.

It does because it comes from Latin and it comes from Greek.

Sect, you might not have recognised as a root word, sect comes from Latin.

It means two parts.

So when we're looking at these three prefixes, we were actually looking at three different word classes.

We had one word which was an adjective.

The second was a noun and the third was a verb.

Bilingual, bicycle and bisect.

Okay, next group of words, I'm going to read them to you and you pause the video and tell the screen, what do these words mean? And what do they have in common.

Circumnavigate, circumnavigate, second word, circumference circumference, pause the video.

How did you get on? What do these words mean? What do they have in common? Hopefully you noticed that these words had the prefix circum in common and circum means around.

You might notice that the first four letters in the prefix circum are c i r c the same as the first four letters in the word circle.

That's because they come from the same word root.

They're part of the same word family.

And that's a great way to help us remember what what this prefix means.

So circumnavigate means to navigate like to sail or fly around around the globe.

Circumference is the line around the outside of a circle.

Have a look at our root words.

Hey, hopefully you noticed navigate is a root word, which makes sense in English by itself.

To navigate means to move over, on, or through something.

We probably couldn't understand ference as a word in English that makes sense by itself.

It comes from the Latin meaning carry.

So think about circumference is that line, which is carried around the outside of the cell.

What have we discovered so far? A prefix is a group of letters at the beginning of a word that changes its meaning.

We've just looked at circum, which meant around.

Remember, the first four letters are the same as in circle.

About the one that we looked at before that bi means two.

Okay, next set of words.

I'm going to read you the words.

Then you pause the video, tell the screen, what do these words have in common and what do they mean? Number one, telephone, telephone.

Number two, television, television, pause.

How did you get on? What do these words mean? What do they have in common? Both of these words contain the prefix tele and tele means distant.

Let's have a look at the words.

Telephone.

A telephone is an instrument for transmitting sound across distance.

Think, it helps us to speak to somebody who could be far away.

Television is an instrument for transmitting images across distance.

Hey, have a look at these root words phone.

Well, we recognise that root word is an as a word in English that makes sense by itself.

Vision, we should also recognise that as the word, which makes sense in English, by itself.

Vision, referring to sight.

Okay.

Are you ready for the next set of words or two more words? I want you to listen and pause the video and work out what they mean and what they have in common.

Number one, transatlantic, transatlantic.

Number two, transparent, transparent.

Pause.

Trans was the prefix that was joined onto each of those root words and trans means across or through.

So transatlantic means crossing the Atlantic.

Transparent means easily seen through.

Let's have a look at those root words, Atlantic.

Well, we should recognise that that's the sea, transatlantic then becomes an adjective.

Transparent, we probably don't recognise this as a root word, which makes sense in English by itself.

Is from the Latin meaning appear.

What have we discovered so far? Can you pause the video and give the meaning of each of these prefixes bi, circum, tele and trans off you go? How did you get on? Bi meant two think bicycle.

Circum around, think circle, tele distant.

Think about hearing someone's voice from a long way away on the telephone.

Trans and across think about transatlantic and crossing that sea.

Okay.

Can you do it this way round.

If I give you the definition, the meaning of each of these prefixes, can you remember what they were and how they were spelled? Write them down now, pause the video.

Let's see if you got it right bi meant two circum around with those two Cs, tele distant and trans across.

Here's that a little bit of extra learning.

And I want you to try to challenge yourself.

Here's an extra information and we're looking at this because it is interesting.

It affects the way that we spell.

So you're going to find, as you're reading, as you're exploring prefixes in the words around you, that some prefixes use hyphens.

This can happen for many different reasons.

So sometimes you might see a hyphen to prevent, two of the same vowel appearing next to each other.

They, for example, in re-enter and co-ordinate, co-ordinate is going to be one of our spelling words.

Some prefixes use hyphens particularly the prefixes ex- and self-.

Finally, prefixes can use hyphens to avoid confusion.

Think about the difference between re-cover and recover Have a look at these sentences.

Can you hmm the pool? You should hmm after the operation.

Can you which one would it be re-cover or recover? Can you re-cover the pool? Yeah.

Cover it again.

You should hmm after the operation, which one would it be now? You should recover after the operation recover, meaning to get better.

Okay.

Let's have a, look at our spelling words.

We're going to go through each word in turn.

I'd like you to write the word down and be really careful with that copying.

Make sure that you're copying this word accurately so that you're not learning the wrong spelling of a word.

Number one, bicycle, bicycle.

I love riding my bicycle.

Number two, bilingual, bilingual.

I am bilingual.

Oops, because I can speak two languages.

Number three, bisect, bisect.

If I bisect, a shape, I cut it into two parts.

Number four, circumnavigate, circumnavigate.

I would love to circumnavigate the globe.

Number five, circumference, circumference.

In Maths, you might be asked to find the circumference of a circle.

Number six, telephone, telephone.

I love speaking on the telephone to my friends.

Number seven, television, television There are sometimes interesting programmes on television.

Number eight, transatlantic, transatlantic.

The journey was transatlantic.

Number nine, transparent, transparent.

The window is transparent.

And number 10, that word that we looked at earlier with a hyphen co-operate, co-operate.

In teams, it's really important to co-operate.

Okay, well done for today's spelling lesson.

I hope you found it interesting.

And I look forward to seeing you again next time.

Bye.