Shape sorter: polygons

Match pairs of shapes that are the same.

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It's a match!

Well done!

Shape sorter: polygons

Welcome to the shape-sorting factory!

We need your help to program Sirc, our robot, to short shapes into sets.

Enter

Shapes

Before you program Sirc, you need to work out how he should sort the shapes.

In this part of the factory, we make sets of shapes that share geometric features (for example, the same number of sides).

First, make a Checklist to help you work out the features to look for.

This is a useful checklist!

In our factory, shapes that belong to a set are called YES shapes. You need to work out what they have in common.

Select Clues to investigate YES and NO Shapes.

Now work out what a new set of shapes has in common.

Select Clues to investigate some new YES and NO Shapes. Your checklist will still be helpful!

Checklist for sorting

What makes YES shapes belong together?

Features to check:

How many sides does it have?
Does it have straight sides?
Are any of its sides equal in length?
How many angles does it have?

Checklist for sorting

Select the four most useful questions to ask about each shape:

That's not it.

We're not going to sort the shapes by their position.

Oops!

That still wasn't right.

What do YES shapes have in common?

To find clues, select YES shapes to see examples of shapes in a set. Select NO Shapes to explore the shapes that don't belong.
Choose a shape and use the Wand tool to explore its features.
Don't forget to use your Checklist if you need to!

Checklist for sorting

What makes YES shapes belong together?

Featuers to check:

How many sides does it have?
Does it have straight sides?
Are any of its sides equal in length?

When you've worked out what all the YES shapes have in common, go to the factory.

The YES shape you tried to shed

The NO shape you tried to keep

Select a button to check a feature.
Move the wand handle in a complete circle.

Wand tool

Straight sides

All sides equal?

Any sides equal?

Number of angles

Any equal angles?

Right angles

Counts straight sides, only not curved parts

Shows 'Yes' only if all sides are straight and same length

Shows 'Yes' only if at least two straight sides are the same length

Only counts angles formed by straight lines inside the shape

Shows 'Yes' if only two angles at the same size

Counts angles equal to 90°

Shapes

Have you discovered what the Yes shapes have in common?

Test if you're right by sorting some shapes. Keep any YES shapes and Shred any NO shapes.

Use the Wand tool if you need to.

Excellent!

You picked five YES shapes that fit into a set.

You are now ready to train Sric

We want Sirc to carry on the job of making sets of shapes

Program him with the directions for how to pick YES shapes.

Hold on! That's a YES shape.

Select clues to compare this shape with the other Yes shapes. (Use the Want tool!)

Hold on! That's a NO shape.

Select clues to compare this shape with the YES shapes. (Use the Want tool)

Wait! That's a YES shape.

Select Clues to check the feature it has in common with the other YES shapes.

Wait! That's No shape.

Select Clues to try to work out how this shape is different from the YES shapes.

Stop! That's a Yes shape because it has straight sides only.

Stop! That's a NO shape because it does not have straight sides only.

YES shapes

A YES shape must have:

Program

Select the statement that is true for this set of YES shapes, and Upload it to program Sric.

Look at the YES shapes again.

Then select the statement that is true for all the YES shapes in this set.

Still not correct.

Read the statements carefully. Then select the statement that is true for this set of YES shapes.

That still isn't right.

Once the correct statement has been chosen for you, select Upload to reprogram Sirc.

Shapes

It's time for Sirc to sort the shapes!

Let's see how well you programmed him.

Wait! That's a YES shape.

Wait! That's a No shape.

Select Program to retrain Sirc.

Wait! That's No shape.

Select Clues to try to work out how this shape is different from the YES shapes.

That's it! You've trained Sirc to find shapes with one feature in common.

These YES shapes are called polygons. They belong in the same set because they all have:
straight sides only.

These YES shapes are called hexagons. They belong in the same set because they all have:
six straight sides and six angles.

These YES shapes are called pentagons. They belong in the same set because they all have:
five straight sides and five angles.

Now Sirc is trained to sort polygons into sets!

Thanks for all your help!

Match pairs of shapes that are the same.

It's a match!

Well done!

Shape sorter: polygons

Welcome to the shape-sorting factory!

We need your help to program Sirc, our robot, to short shapes into sets.

Enter

Shapes

Before you program Sirc, you need to work out how he should sort the shapes.

In this part of the factory, we make sets of shapes that share geometric features (for example, the same number of sides).

First, make a Checklist to help you work out the features to look for.

This is a useful checklist!

In our factory, shapes that belong to a set are called YES shapes. You need to work out what they have in common.

Select Clues to investigate YES and NO Shapes.

Now work out what a new set of shapes has in common.

Select Clues to investigate some new YES and NO Shapes. Your checklist will still be helpful!

Checklist for sorting

What makes YES shapes belong together?

Features to check:

How many sides does it have?

Does it have straight sides?

Are any of its sides equal in length?

How many angles does it have?

Checklist for sorting

That's not it.

We're not going to sort the shapes by their position.

Oops!

That still wasn't right.

What do YES shapes have in common?

To find clues, select YES shapes to see examples of shapes in a set. Select NO Shapes to explore the shapes that don't belong.

Choose a shape and use the Wand tool to explore its features.

Don't forget to use your Checklist if you need to!

YES shapes

NO shapes

Checklist for sorting

What makes YES shapes belong together?

Featuers to check:

How many sides does it have?

Does it have straight sides?

Are any of its sides equal in length?

When you've worked out what all the YES shapes have in common, go to the factory.

The YES shape you tried to shed

The NO shape you tried to keep

Wand tool

Counts straight sides, only not curved parts

Shows 'Yes' only if all sides are straight and same length

Shows 'Yes' only if at least two straight sides are the same length

Only counts angles formed by straight lines inside the shape

Shows 'Yes' if only two angles at the same size

Counts angles equal to 90°

Shapes

Have you discovered what the Yes shapes have in common?

Test if you're right by sorting some shapes. Keep any YES shapes and Shred any NO shapes.

Use the Wand tool if you need to.

Excellent!

You picked five YES shapes that fit into a set.

You are now ready to train Sric

We want Sirc to carry on the job of making sets of shapes

Program him with the directions for how to pick YES shapes.

Hold on! That's a YES shape.

Select clues to compare this shape with the other Yes shapes. (Use the Want tool!)

Hold on! That's a NO shape.

Select clues to compare this shape with the YES shapes. (Use the Want tool)

Wait! That's a YES shape.

Select Clues to check the feature it has in common with the other YES shapes.

Wait! That's No shape.

Select Clues to try to work out how this shape is different from the YES shapes.

Stop! That's a Yes shape because it has straight sides only.

Stop! That's a NO shape because it does not have straight sides only.

YES shapes

A YES shape must have:

Program

Select the statement that is true for this set of YES shapes, and Upload it to program Sric.

Look at the YES shapes again.

Then select the statement that is true for all the YES shapes in this set.

Still not correct.

Read the statements carefully. Then select the statement that is true for this set of YES shapes.

That still isn't right.

Once the correct statement has been chosen for you, select Upload to reprogram Sirc.

Shapes

These YES shapes are called polygons. They belong in the same set because they all have:
straight sides only.

These YES shapes are called hexagons. They belong in the same set because they all have:
six straight sides and six angles.

These YES shapes are called pentagons. They belong in the same set because they all have:
five straight sides and five angles.