Year 3-5 Open-ended
Mathematics
Activities
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Patterns & Algebra
Which number in this group does
not belong? Why?
15 2 8 13 16
Patterns
Open-ended Maths Activities
by Peter Sullivan & Pat Lilburn
I doubled a number and kept
doubling so that the original number
was doubled four times.
What might the answer be?
Patterns
Open-ended Maths Activities
by Peter Sullivan & Pat Lilburn
My dog is half as old as me.
How old might I be and how old is
the dog?
Patterns
Open-ended Maths Activities
by Peter Sullivan & Pat Lilburn
Record a number sequence of at least
eight numbers where each new
number is five more than the
previous number.
Patterns
Teaching and Assessing Maths through Open-ended
Activities by Pat Lilburn & Irene Sawczak
I am thinking of a number so that
when I take a quarter of it and
subtract 7 the answer is an odd
number between 0 and 20.
What number might I be thinking of?
Algebra
Teaching and Assessing Maths through Open-ended
Activities by Pat Lilburn & Irene Sawczak
Make this number sentence true in as
many ways as you can____ x ____ = ____ x ____
Algebra
Teaching and Assessing Maths through Open-ended
Activities by Pat Lilburn & Irene Sawczak
Ben grouped the following numbers
together :
21, 15, 45, 24, 6 and 30
What other numbers might belong in
Ben’s group? Why?
Patterns
Teaching and Assessing Maths through Open-ended
Activities by Pat Lilburn & Irene Sawczak
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Year 3-5 Open-ended Mathematics Activities