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Bài 10: Greater than, Less than and Equal to

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Bài 10: Greater than, Less than and Equal to

Starry, have you seen the long green animal before?

Starry, have you seen the long green animal before?

Yes, it is an alligator.

Yes, it is an alligator.

Hasn’t this got a big mouth? It looks so hungry.

Hasn’t this got a big mouth? It looks so hungry.

It can eat up all these the little fishes!

It can eat up all these the little fishes!

Now, Starry. Take a closer look at the shape of its mouth!

Now, Starry. Take a closer look at the shape of its mouth!

The shape is like this.

The shape is like this.

Do you know what this sign is?

Do you know what this sign is?

It is the greater than sign.

It is the greater than sign.

Do have you remember the greater than sign.

Do have you remember the greater than sign.

Just think of the alligator and its open mouth.

Just think of the alligator and its open mouth.

Remember the alligator always eats a greater number of fishes.

Remember the alligator always eats a greater number of fishes.

Supports we have 5 fishes and 3 fishes.

Supports we have 5 fishes and 3 fishes.

We write 5 is greater than 3 (5>3).

We write 5 is greater than 3 (5>3).

The mouth of the alligator, Starry is open towards the greater number of the fishes.

The mouth of the alligator, Starry is open towards the greater number of the fishes.

The closed part of the mouth points to the smaller number of fishes.

The closed part of the mouth points to the smaller number of fishes.

Here we have 7 fishes and 2 fishes. Now, 7 is the greater number of fish.

Here we have 7 fishes and 2 fishes. Now, 7 is the greater number of fish.

And so, the mouth of the alligator will be open towards 7, Starry!

And so, the mouth of the alligator will be open towards 7, Starry!

We write 7 is greater than 2 (7>2).

We write 7 is greater than 2 (7>2).

Starry, supports we want to show one number is less than another all we have to do it turns the alligator mouth around because remember the alligator always eats the greater number.

Starry, supports we want to show one number is less than another all we have to do it turns the alligator mouth around because remember the alligator always eats the greater number.

So, if we have 3 fishes and 8 fishes, we write it as 3 is less than 8.

So, if we have 3 fishes and 8 fishes, we write it as 3 is less than 8.

And if we have 5 fishes and 7 fishes, we write it as 5 is less than 7.

And if we have 5 fishes and 7 fishes, we write it as 5 is less than 7.

Don’t forget the alligator open mouth.

Don’t forget the alligator open mouth.

And 2 less than 5 is written as 2 less than 5.

And 2 less than 5 is written as 2 less than 5.

Remember Starry, greater than and less than are 2 different signs.

Remember Starry, greater than and less than are 2 different signs.

Now, Starry. What if we have the same number of fish.

Now, Starry. What if we have the same number of fish.

Then be used the equal sign.

Then be used the equal sign.

See, 3 fishes and 3 fishes is written as 3 equals 3.

See, 3 fishes and 3 fishes is written as 3 equals 3.

And 7 equals 7 is written as 7 equals 7.

And 7 equals 7 is written as 7 equals 7.

Now, that you have learned you signs.

Now, that you have learned you signs.

Starry, can we do an activity together.

Starry, can we do an activity together.

Fill in the blanks with the correct sign greater than, less than or equal to.

Fill in the blanks with the correct sign greater than, less than or equal to.

Let’s begin!

Let’s begin!

5 flowers (dash) 8 flowers. 5 flowers are less than 8 flowers.

5 flowers (dash) 8 flowers. 5 flowers are less than 8 flowers.

9 leaves (dash) 2 leaves. 9 leaves are greater than 2 leaves.

9 leaves (dash) 2 leaves. 9 leaves are greater than 2 leaves.

10 ants (dash) 5 ants. 10 ants are greater than 5 ants.

10 ants (dash) 5 ants. 10 ants are greater than 5 ants.

4 butterflies (dash) 4 butterflies. 4 butterflies equal to 4 butterflies.

4 butterflies (dash) 4 butterflies. 4 butterflies equal to 4 butterflies.

4 bees (dash) 10 bees. 4 bees are less than 10 bees.

4 bees (dash) 10 bees. 4 bees are less than 10 bees.

In this activity, you have to say whether the signs used are correct or wrong by putting a tick or a cross.

In this activity, you have to say whether the signs used are correct or wrong by putting a tick or a cross.

If wrong we have to correct the signs.

If wrong we have to correct the signs.

8 is less than 8 – wrong. Starry, the correct answer is “8 equals to 8”.

8 is less than 8 – wrong. Starry, the correct answer is “8 equals to 8”.

1 is less than 8—correct.

1 is less than 8—correct.

2 is greater than 4 – wrong.

2 is greater than 4 – wrong.

The correct answer is “2 is less than 4”.

The correct answer is “2 is less than 4”.

4 is less than 3 – wrong.

4 is less than 3 – wrong.

What do you think it the correct answer Starry?

What do you think it the correct answer Starry?

Yes, the correct answer is “4 is greater than 3”.

Yes, the correct answer is “4 is greater than 3”.

8 is greater than 2—correct.

8 is greater than 2—correct.

5 equals to 5 – correct.

5 equals to 5 – correct.