Mysteries
Children work collaboratively to solve a
problem from a list of clues, presented on cards.
Type
1:
Children/groups are given clues one at a time
and possibilities are discussed in the group then with the class to
ensure all groups are following the mystery
Activity: children have
access to 19 digit cards and a number sentence template, e.g.
Clues:
Before beginning the mystery, can the children
use the digit cards to complete a correct number sentence? What if
the number sentence includes a 9 digit? What if the 9 is the
denominator? What if the fraction is ½? etc.
 Three of the digits are square numbers.
 Three of the digits are prime numbers
 The sum of all 6 digits is 28.
 The numerator and the denominator have a total of 11
and a difference of 3.
 The difference between the two whole numbers is
39.
 The fraction is an improper fraction.
Mysteries of this type are relatively easy to
make up and both the template and the clues can be altered to fit
in with the area of mathematics being covered. Other examples:
Type
2:
Children/groups are given all the clues but
they are dealt evenly around the group. The children are not
allowed to show their cards to each other (so must share
information verbally).
Activity:
Children have access to 19 digit cards
Clues:
You are to make a row of 5
numbers.

The last number is a multiple of
the first number.

All the numbers are factors of 36

The last number is a square number.

The total of all 5 numbers is 24.

When the middle three numbers are multiplied together, the
result is 48.

The product of the first two numbers is the same as the product
of the last two numbers.

Two of the numbers are odd.

Examples of mysteries
More Mysteries:
More mysteries will appear on this page as they are
developed.
Fractions

Shape

19 digit card mysteries


3 different mysteries using the same 2d shapes

3 by 3 grid
mystery 





