Page 158 - Math Genius C5

E:\Working\Orange_Education\Math_Genius_5\Open_Files\CHAP_07
\\October 8, 2025 12:37 PM Bharat Arora P-9 Reader _________________________ Date: ___________________74

Gamified Learning Holistic Skills

Objective: To understand the concept of turn through a paper windmill.
Materials required: A square piece of paper, thumb pin, a stick of length 15 cm, sticker
and a pair of scissors.

Procedure:
Š Take the square piece of paper and fold it diagonally along both diagonals.

Š Make creases along both diagonals.
Š Open it out and draw a small circle at the point of intersection of the diagonals.

Š Cut from one corner along the diagonal crease stopping before the circle.
Š Repeat along the other diagonal crease.

Š Fold four alternate corner sections down to the centre
of the paper, holding each section under your thumb at
the centre as you work.
Š Place a sticker at the centre of the windmill so that it
holds the four blades in position.

Š Take a thumb pin and push it through the centre of the sticker and fix it on
a stick firmly so that it allows the windmill to turn.
1 1
Š Now rotate the windmill and check if it changes shape after and turns.
2 4

maths fun Logical Thinking
This is a fun way to add numbers in a series. Observe the
method given alongside to add numbers and find the sum 1+2+3+4+5+6+7
of the following: 8

1. 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 8
8
2. 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + ... + 20 3 × 8 + 4 = 24 + 4 = 28

Critical Thinking
Challenge Question
In the given figures, shade two more squares so that the dotted line becomes a line of symmetry.

1. 2. 3.

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