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EXPERIENTIAL LEARNING Century #Critical Thinking ACTIVITY-4
Skills

Create a list of students with their names, roll numbers and another column where their first name
and roll number are combined. Identify the pattern Excel uses to automatically combine the data. Design an algorithm for a number-guessing game
in which the player must enter a number between
10 and 20. If the player enters a number within this
range, the game should display a congratulations
message and stop. If the number is outside the
USING LOOPS AND CONDITIONS IN ALGORITHMS range, the game should prompt the player to try

again until a valid number is entered. Break the
Loops and conditions help you solve problems by repeating tasks and making decisions. A loop game into clear, step-by-step instructions.
repeats a set of instructions multiple times. This is useful when you need to do the same task many
times, like printing numbers, filling shapes or repeating actions.

Let’s say you want to create a row of 5 stars:

Without a loop With a loop
Print a star Repeat 5 times: ACTIVITY-5

Print a star • Print a star Create a flowchart for a Number-Guessing Game on ACTIVITY-4.
Print a star

Print a star

Print a star
Using a loop helps you save time and effort because you don’t have to write the same instruction

over and over again.
Conditions, on the other hand, help the program make decisions. They check if something is true
or false and based on that, the program decides what to do next.

The most common condition is the If-Then-Else structure, where:

If the condition is true, do one thing.

Else (if the condition is false), do something else.
Lets check if a number is positive or negative. EVALUATION

READ number
Evaluation involves testing different solutions, comparing them and choosing the best one based
IF number > 0 THEN
on efficiency, accuracy and smartness. When solving a problem, there are often multiple ways to
PRINT "The number is positive." approach it. To evaluate solutions, ask yourself:
ELSE Efficiency: How quickly can the task be completed?
Accuracy: Does the solution give the correct result?
PRINT "The number is negative."
Smartness: Is the solution simple, using fewer steps or resources?
The above algorithm, checks if the given number is greater than 0 or not. If the condition is
true (i.e., if the number is positive), it prints: “The number is positive.” If the condition is false For example, if you are sorting a list of names, you could try different sorting methods and select
(i.e., if the number is negative or zero), it prints: “The number is negative.” the one that is fastest, most accurate and easiest to implement. Evaluation ensures that the
solution is not only correct but also practical and optimal.

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