# Magic rectangles

15 min1 participant

Recognize and understand geometric relationships; improve math efficiency. Find the magic number!

## Let's play!

1. Build a rectangle on the base plate with 3 rows that include 3 bricks in each row.

2. Make it a magic rectangle by rearranging the bricks until each row and column of bricks added together equals the magic number 6.

## How to prepare

• 1 base plate

• 9 number bricks (3 of each of the numbers “1”, “2” and “3”)

• 1 number sign brick

• 1 bowl

Place the number sign brick on the top left corner of the base plate to indicate that the bricks represent numbers.

Place the other bricks in the bowl.

## Facilitation tips

• Suggest extra space between bricks for easier manipulation.

• Demonstrate and explain examples of a non-magic and a magic rectangle.

• Ask “What make this is a magic rectangle?”.

## Possible variations

• Create a magic rectangle with 2 missing bricks.

• Change composition of magic rectangles with the same 9 bricks.

• Create a magic rectangle with number bricks “1” to “9”.

• Construct a rectangle with number bricks “1” to “16” to create a 4 x 4 shape -magic number equals 34.

### Did you know?

• Numeracy is not only about numbers : it also relies on self-regulation or executive functions and spatial skills.

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