A series of professional
development resources designed to support embedding rich tasks
into the KS1/2 curriculum can be found here
.
I have read a number of articles which reference "rich tasks"
recently but none of them really seems to tell me what the person
writing thinks a "rich task" is. I have found this somewhat
frustrating and then it dawned on me that the NRICH website is
full of things we would describe as "rich tasks" or problems but,
like many other writers, we have not said explicitly what we
might mean by "good problems" or "rich tasks". So, what are "rich
tasks" and why are they important?
I would describe a rich task as having a range of characteristics
that together offer different opportunities to meet the different
needs of learners at different times. What is also apparent to me
is that much of what it takes to make a rich task "rich" is the
environment in which it is presented, which includes the support
and questioning that is used by the teacher and the roles that
learners are encouraged to adopt. That is, an environment in
which learners are not passive recipients of knowledge, accepting
what is given, but independent assertive constructors of their
own understanding who challenge and reflect. On its own a rich
task is not rich - it is only what is made of it that allows it
to fulfil its potential. With this in mind it might still be
useful to list some of the things I might say when describing a
rich task. Rich tasks (or good problems):
- are accessible to a wide range of learners,
- might be set in contexts which draw the learner into the
mathematics either because the starting point is intriguing or
the mathematics that emerges is intriguing,
- are accessible and offer opportunities for initial success,
challenging the learners to think for themselves,
- offer different levels of challenge, but at whatever the
learner's level there is a real challenge involved and thus
there is also the potential to extend those who need and demand
more (low threshold - high ceiling tasks),
- allow for learners to pose their own problems,
- allow for different methods and different responses
(different starting points, different middles and different
ends),
- offer opportunities to identify elegant or efficient
solutions,
- have the potential to broaden students' skills and/or
deepen and broaden mathematical content knowledge,
- encourage creativity and imaginative application of
knowledge.
- have the potential for revealing patterns or lead to
generalisations or unexpected results,
- have the potential to reveal underlying principles or make
connections between areas of mathematics,
- encourage collaboration and discussion,
- encourage learners to develop confidence and independence
as well as to become critical thinkers.
Not all rich tasks will do all of these things but they will
certainly manage a number of them when used in a way which
values discussion, difference and critical appraisal. It is for
the teacher to look at a task and recognise its potential to
meet some or all of the above and present it in a way and in a
forum which makes it "rich".
In the guidance document "Mathematics at Key Stage 4: developing
a scheme of work", the Secondary National Strategy describes a
rich task as:
- accessible and extendable,
- one which allows learners to make decisions,
- involving learners in testing, proving, explaining,
reflecting and interpreting,
- promoting discussion and communications,
- encouraging originality and invention,
- encouraging 'what if' and 'what if not' questions,
- enjoyable and contains the opportunity for surprise.
Additionally, page 20 of "Better Mathematics: A Curriculum
Development Study", Afzal Ahmed of West Sussex Institute of
Higher Education offered the following criteria for identifying
a "Rich Mathematical Activity" in 1987:
- must be accessible to everyone at the start
- needs to allow further challenges and be extendible
- should invite children to make decisions
- should involve children in
-
- speculating
- hypothesis making and testing
- proving or explaining
- reflecting
- interpreting
- should not restrict children from searching in other
directions
- should promote discussion and communication
- should encourage originality/invention
- should encourage "what if?" and "what if not?"
questions
- should have an element of surprise
- should be enjoyable.
Both of these are remarkably similar lists to the one I started
this article with and, like that first list, the above suggest
that a rich task depends not only on the task itself but what
is done with it. Rich tasks employed appropriately allow all
learners to find something challenging, for their level, to
work on.
It is possible for rich tasks to have at their core, the
opportunity to develop an understanding of, explore or employ
mathematical concepts that are part of the normal curriculum.
Rich tasks and curriculum coverage or even testing are not at
odds with each other. The nature of rich tasks gives learners the
opportunity not only to question and develop their understandings
of mathematical ideas but also to gain in confidence that they
can apply their knowledge in a range of contexts, even unfamiliar
ones. They also have the capacity to meet the needs of a
functional mathematics curriculum.
Sometimes though, perhaps a better description would be "rich
contexts". The context could be a problem but it could also be a
series of related tasks or an open environment that is rich in
many of the senses described above. An example of a rich
environment on the NRICH site might be the
Geoboard environment . A series of rich tasks might include
the game "
square it ", the problems "
square coordinates" and "
tilted squares ". These all consolidate and develop the idea
of a square, link this idea with pattern and coordinates and
Pythagoras' theorem. Pretty rich, and all based around drawing
squares on a dotty grid!
To aid teachers in making decisions about what rich tasks to
apply where, the NRICH website offers a number of support
mechanisms:
- we publish rich tasks and contexts!
- we give notes and hints to help teachers to see some of the
potential of the tasks or problems that we offer,
- we link all our problems to curriculum content themes,
- we are linking some problems directly to curriculum
documents so that a "quick match" is possible.
But we are not telling teachers how to use the problems by
giving detailed lesson plans and that is because the nature of a
rich task involves "letting go" and preparing for the range of
needs of your own learners and where they are likely to go. Any
suggestion that we can begin to second guess what best serves the
needs of the learners in every classroom would be misplaced.
However, the following basic ideas may be useful to draw on when
you are planning work with your learners :
- try to assess what your learners already know. Having said
that, rich tasks offer opportunities to find out what they
really do know and reveal the strengths, weaknesses and
confidence levels of the learners working on the task. Rich
tasks are definitely excellent tools to support
assessment.
- have a view of the core requirement of your rich task -
what is the minimum outcome you are hoping for? This will also
lead you to consider some of the range of possible outcomes you
might expect. But be prepared to be surprised - your learners
are likely to come up with better ideas and questions than you
can think of.
- be prepared to encourage persistence. This will be
difficult if your pupils are not used to taking responsibility
for their own learning but it will get easier as they become
more familiar with the idea and gain in confidence. One way to
do this is to respond to a plea for an answer with a question
... "What should I do next?" ... "What have you tried?"
- try not to lead learners down an alternative path because
they have begun to explore an area of the topic you had not
expected - and this may mean saying "I don't know". Learners
can learn more from a task they think they 'own'.
- remember that learners can learn as much, and sometimes
more, from their peers as from you.
In essence, rich tasks encourage children to think creatively,
work logically, communicate ideas, synthesise their results,
analyse different viewpoints, look for commonalities and evaluate
findings. However, what we really need are rich classrooms:
communities of enquiry and collaboration, promoting communication
and imagination.
References
Secondary National Strategy, 2007, Mathematics at Key Stage 4:
developing your scheme of work, DfES.