Sort
Select the three cards of a particular colour.
Which card is the odd one out?
Is there a reason why each card might
Odd one out
be the odd one out?
Select
cards of
a particular
colour.
Repeatthe
fortwo
a second
colour
if you wish.
Find all the things they have in common.
Find all theWhat
things that
aresame,
different
aboutisthem.
is the
what
different?
Repeat for a second colour if you wish.
Select all the cards of a particular colour.
Think up five more cards that could be part
Make 5 more
of this set.
Repeat for a second colour if you wish.
Choose your own cards and questions or use this
slide to produce a paper version for use as a
Free choice (animation and printable)
card sort.
Matching cards are shown in the same colour,
Thecard
matching
sets
providing answers for the
sort activity.
Content covered
3-D trigonometry BAA*

Choose one of these sorting
activities to develop a deeper
understanding of this topic.
Sort – Content covered
B Length, area and volume
Use trigonometry to solve right-angled triangles
A Length, area and volume
Use Pythagoras’ theorem in three dimensions
A* Length, area and volume
Use trigonometry in three dimensions
3-D trigonometry BAA*
Sort – Odd one out
Why is it the odd one out?
Can you find more than one reason?
Why could the others be the odd one out?
Can you find more than one reason?
The others have side lengths that
are either integers or irrational.
The others have some
non-integer lengths.
The others
are triangles.
The others have a
length of 6.
The sides given on the
others are all integers.
Possible answers
Possible answers
The others are twodimensional shapes.
3-D trigonometry BAA*
Sort – What is the same, what is different?
Same:
Both have a length of 6.
Both have a right angle.
Why are they the same?
Why are they different?
Can you find more than one reason?
Different:
One is a rectangle.
One is a triangle.
63.4
Same:
Both involve angles.
Possible answers
Different:
One is a diagram.
One is an angle.
Possible answers
3-D trigonometry BAA*
Sort – Make 5 more
How do you know all your cards match?
How did you devise your cards?
Which make the best cards? Why?
6.96 cm
67.4
45
10
22.6
53.1
3.54 cm
36.9
16.25 cm²
Possible answers
Possible answers
3-D trigonometry BAA*
Sort – Free choice (animation and printable)
Can you add more cards to the sorted sets?
Use
one out,
and different,
Copy/paste one
setodd
of cards
intosame
your book.
or make
5 more before the card sort to
Why do they make
a set?
scaffold
access
to this
activity.
What other criteria
could
you use
to sort
the cards?
63.4
59.0
67.4
3-D trigonometry BAA*

Sort – The matching sets
63.4
59.0
67.4
3-D trigonometry BAA*