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2                                             ALGORITHMS WITH


                                                                               BLOCK CODING








                         Learning Outcomes

                      Introduction                                        Searching for a Word in Dictionary
                      Algorithm                                           Flowchart

                      Pseudocode                                          Getting started with Block Coding




                 INTRODUCTION
                 So far, you have understood that coding is associated with many day to day activities. For

                 example, a traffic light works on coding. In this chapter, you will learn how to understand a
                 situation and write codes according to it.

                 SEARCHING FOR A WORD IN DICTIONARY

                 A dictionary is a book which contains words                       Q
                 and  phrases  in  an  alphabetical  order, with  their
                 meanings.                                                               f          ANSWERS

                 Many times, while reading a book you may come
                 across a word whose meaning you don’t know. So               A                     b

                 how do you find out the meaning of the word?                           C                    K

                 You will find the meaning of the word by using a           B                                   a
                 dictionary. But when you open a dictionary you
                 see, there are many words in a dictionary. So how
                 do you find that particular word in the dictionary?

                 Let’s see an example to find the word 'Orange' in

                 a dictionary:

                 1.  Find the dictionary section with the first letter of the word, ‘o’.
                 2.  Within the list of words starting the first letter ‘o’, find the section having the second

                     letter of the word ‘r’.

                 3.  You need to do this process again with the third letter ‘a’, fourth letter ‘n’,  fifth letter ‘g’
                     and sixth letter ‘e’, until you finally reach the word ‘orange’ in the dictionary and then
                     find its meaning.


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