Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 143 - Math_Genius_V1.0_C1_Flipbook
P. 143

    E:\Working\Focus_Learning\Math_Genius_1_(05-10-2023)\Open_Files\11_Chap_10\Chap_10
                   \ 11-Sep-2024  Bharat Arora   Proof-6                                    Reader’s Sign _______________________ Date __________

                  mEasUring LEngTH

                  Using Body parts

                  Long ago people used their body parts such as fingers, handspans, cubits, feet, etc.

                  to measure lengths of objects.

                              handspan            palm          finger/digit                 cubit

                                   pace                          footspan                     armspan

                  Inaya and Ishan are placing their handspans

                  along the stick to measure its length.

                  Inaya: Length of the stick is 5 handspans.

                  Ishan: Length of the stick is 7 handspans.

                  Think! Why are they measuring different

                  number of handspans?

                  For correct measurement, we always use the                           Inaya               Ishan
                  same length object.

                  Using small objects

                  Look at the following. Here, the length of a pencil is                       Thus, the length of the
                                                                                                pencil is equal to the
                  measured using erasers.                                                       length of 10 erasers.

                  The pencil is     10    erasers long.

                  Mathematics-1                                                                                         141

| 138 139 140 141 142 143 144 145 146 147 148 |