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The Versatile Circle -...
Transcript of The Versatile Circle -...
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The Improving Mathematics Education in Schools (TIMES) Project
The Versatile Circle
A conversation about the properties of 2D shapes and 3D objects
With thanks to Peter Carmichael, Principal Project Officer - QCAR Mathematics, Nambour
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The Versatile Circle
Begin with a piece of paper in the shape of a
circle.
What are its properties?
How can we find the
exact centre?
A conversation about the properties of some 2D shapes and 3D objects
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The Versatile Circle
semi circle
A conversation about the properties of some 2D shapes and 3D objects
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The Versatile Circle
quadrant
A conversation about the properties of some 2D shapes and 3D objects
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The Versatile Circle
mark a dot in the exact centre
A conversation about the properties of some 2D shapes and 3D objects
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The Versatile Circle
chord
A conversation about the properties of some 2D shapes and 3D objects
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The Versatile Circle
sector
A conversation about the properties of some 2D shapes and 3D objects
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The Versatile Circle
equilateral triangle
A conversation about the properties of some 2D shapes and 3D objects
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The Versatile Circle
right-angled triangle
A conversation about the properties of some 2D shapes and 3D objects
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The Versatile Circle
trapezium
A conversation about the properties of some 2D shapes and 3D objects
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The Versatile Circle
rhombus
A conversation about the properties of some 2D shapes and 3D objects
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The Versatile Circle
equilateral triangle
A conversation about the properties of some 2D shapes and 3D objects
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The Versatile Circle
triangular based pyramid
A conversation about the properties of some 2D shapes and 3D objects
tetrahedron
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The Versatile Circle
an irregular pentagon
A conversation about the properties of some 2D shapes and 3D objects
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The Versatile Circle
hexagon
A conversation about the properties of some 2D shapes and 3D objects
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The Versatile Circle
truncated tetrahedron
A conversation about the properties of some 2D shapes and 3D objects
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The Versatile Circle
1. create a trapezium but then fold back on
crease
2. repeat with all corners
A conversation about the properties of some 2D shapes and 3D objects
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The Versatile Circle
a six pointed star
A conversation about the properties of some 2D shapes and 3D objects
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The Versatile Circle
Where is the maths?
Take a few minutes to write down some of the mathematical properties The Versatile Circle will allow you to share with
your students.
A conversation about the properties of some 2D shapes and 3D objects
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G.A.N.A.G.
G = State the GOALS (or standards) intended for the lesson
A = ACCESS prior knowledge that relates to lesson
N = Introduce NEW information or concepts
A = ANALYZE the new information or concepts
G = Restate the GOALS learned in the lesson
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g We said…
We wrote… We saw…
We heard… We know… We drew… We said…
We asked… We felt…
We liked… We learnt…
We didn’t like… We found out…
We already knew… We remembered… We used equipment… We need to find out… It was interesting when… The tricky bit was… We didn’t know that… It was cool when… The important thing to remember is… A new word we learnt was… Our group worked well when… We discovered… Congratulations to… The strategy we used was
Where’s the Maths?