Do you know the robot game? One child acts as a robot. Another child gives instructions to the child enacting as robot. The robot child should follow instructions.

**Following
and Devising Algorithms**

Do you know the robot game? One child acts as a
robot. Another child gives instructions to the child enacting as robot. The robot
child should follow instructions. If the robot child stands at the wall by facing
it, the instructor has to say, “move forward’. The robot child can only try to move
forward, but can’t. The robot child cannot say “it is not possible”. This humorous
activity shows that instructions are mechanically followed by robots. Unlike robots,
human brain is capable of thinking and modifying algorithms based on situations.

** **

**Think about the situation**

Recipe for preparing lemonade for a group of 6 members.

• Squeeze 3 half lemons in a bowl.

• Add 5 glasses of normal water into the bowl.

• Add 4 teaspoons of sugar into the lemon juice.

• Stir the content well.

• Filter the content.

• Pour the filtered content into 6 glasses and serve.

Using the above instructions, prepare lemonade for
12 members, 24 members and 3 members.

** **

__Example 2__

Follow the instructions in the given puzzle to arrive
at the same number (36).

**Instructions**

• Think of a number from 1 to 9.

• Multiply it by 9.

• If you have two digit number, add the digits together.

• Subtract 3 from the answer.

• Multiply the number by itself.

**Solution**

Let us take a number: 6

Multiply it by 9 : 9 × 6 = 54

Add the digits together : 5 + 4 = 9

Subtract 3 from the answer : 9 – 3 = 6

Multiply the number by itself : 6 × 6 = 36

Try for number other than 6.

** **

__Example 3__

You need to read the instructions carefully before
filling the OMR sheet. The given OMR sheet is shaded based on the following instructions.

**Instructions**

• Observe the enrolment number written on the top
row.

• The digits are to be shaded from left to right.

• Shade the corresponding bubbles under each of
the number boxes.

• Only one digit is to be shaded in each column.

• Use only ball point pen for shading the bubbles.

**Solution**

This activity is very important as children need
to fill OMR for various examinations like **NAS, NMMS**.

** **

__Example 4__

Observe the given 4 × 4 square grid and follow the
instructions given below to appreciate the uniqueness of the arrangement of numbers
that gives the total 139.

**Instructions**

• Add the numbers horizontally.

• Add the numbers vertically.

• Add the numbers diagonally.

• Add the numbers in the four corners of the square.

• Divide the square into four 2 × 2 squares and
add all the numbers in each of the squares.

Each of the above instructions gives the same answer.
Doesn’t it?

In all the above examples, we note that delivering
instructions as well as following them are interesting.

** **

**Try these**

**1. The teacher should give oral instructions to the students to draw
the geometrical figure already drawn by him / her.**

**i) Draw a square. In the middle of the square, draw a circle in such
a way that the circle does not touch any side of the square. Divide the circle into
four equal parts. Shade the bottom right part of the circle. Ask the students to
show that figure drawn by them.**

**ii) Draw a triangle on a piece of paper. Make it crazy looking by
adding some features. Give instructions to your friend to draw it exactly the same.**

**2. Suppose your friend wants to come to your house from his / her
house. Give clear instructions in order, to reach your house.**

Tags : Information Processing | Term 3 Chapter 5 | 6th Maths , 6th Maths : Term 3 Unit 5 : Information Processing

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6th Maths : Term 3 Unit 5 : Information Processing : Following and Devising Algorithms | Information Processing | Term 3 Chapter 5 | 6th Maths

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