Lets Sort Shapes and Objects Slide3 › ... › 2020 › ...Shapes-and-Objec… · Lets Sort Shapes...
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www.planbee.com Next Let's Sort Shapes and Objects Today I will be... Sorting 2-D and 3-D shapes
Transcript of Lets Sort Shapes and Objects Slide3 › ... › 2020 › ...Shapes-and-Objec… · Lets Sort Shapes...
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Let's Sort Shapes and Objects
Today I will be... Sorting 2-D and 3-D shapes
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Mental Oral Starter
Can you identify these shapes from what you can see?
Explain your reasoning.
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Mental Oral Starter
Square-based pyramid
Pentagon Cube
How did you do?!
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Today, we are going to use our knowledge and understanding of identifying 2-D and 3-D
shapes to sort them.
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Let's play a game!
Get into pairs and label yourself Player One and Player Two.
Player One: Choose one of these shapes. Do not tell your partner what you have chosen, but answer any questions they ask you.
Player Two: Use the questions on the Shape Identification Key to try to work out what shape your partner has chosen!
When you have played one game, swap over and play again!
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Today, we are going to use and create more
identification keys to help us identify different
shapes!
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What do you notice about the
questions in the key?
Let's start by taking a closer look at the identification key you have just used...
Think, pair, then share your ideas.
Is it a 2-D shape?
Yes No
Is it a polygon? Are all of the faces flat?
Yes No
Is it a quadrilateral?
Yes No
Are all the faces the same shape?
circle cylinder
Yes No Yes No
square triangle cube triangular prism
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Is it a 2-D shape?
Yes No
Is it a polygon? Are all of the faces flat?
Yes No
Is it a quadrilateral?
Yes No
Are all the faces the same shape?
circle cylinder
Yes No Yes No
square triangle cube triangular prism
All of the questions can be answered with either yes or no. This is very important when creating an identification key.
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The questions also help to separate the shapes into smaller and smaller groups
until the exact shape name is found.
Is it a 2-D shape?
Yes No
Is it a polygon? Are all of the faces flat?
Yes No
Is it a quadrilateral?
Yes No
Are all the faces the same shape?
circle cylinder
Yes No Yes No
square triangle cube triangular prism
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Let's try to create an identification key together!
What question could you ask which would separate these shapes into two groups? Remember, the answer
has to be yes or no for each shape!
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Is it a 3-D shape?
NoYes
Which shapes would you answer yes for?
Which shapes would you answer no for?
Here is one question we could ask to separate the
shapes...
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Is it a 3-D shape?
NoYes
Now what question could you ask which would separate the two 3-D shapes? Remember, the answer
has to be yes or no for each shape!
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Which shape would you answer yes for?
Which shape would you answer no for?
Here is one question we could ask to
separate the 3-D shapes...
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Now what question could you ask which would separate the two 2-D shapes? Remember, the answer has to be
yes or no for each shape!
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Here is one question we could ask to
separate the 2-D shapes...
Which shape would you answer yes for?
Which shape would you answer no for?
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Check that the identification key works for each of the shapes.
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Now it's time for you to use your reasoning and questioning skills to sort groups of different 2-D
and 3-D shapes!
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PlenaryWhat do you think the question is that
has been used to separate the shapes into these two groups?
?
NoYes
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Plenary
Did you identify the question correctly? Great work!
NoYes
Is it a pyramid?
