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    E:\Working\Focus_Learning\Math_Genius_3_(11-09-2024)\Open_Files\CHAP_04
                 \ 12-Sep-2024               Surender Prajapati   Proof-5                     Reader’s Sign _______________________ Date __________

                                       Learning by Doing

                  Objective: To reinforce the concept of multiplication facts.

                  Materials Required: Some thin wooden sticks (10 sticks), glue
                  Procedure:

                          Put 4 sticks vertically.

                          On the above of these sticks, put one stick horizontally, as shown in the

                          given figure and paste them. Count the points where the horizontal and

                          vertical sticks meet. There are 4 points.

                         Thus, 4 × 1 = 4

                          Paste one more stick horizontally, as shown in the figure and count the

                          points again. Now, there are 8 points of intersection.

                         So, 4 + 4 = 8 or 4 × 2 = 8

                          Now, paste one more stick horizontally and count the points of

                          intersection. Here are 12 points of intersection.

                         So, 4 + 4 + 4 = 12 or 4 × 3 = 12

                          In the same way, many multiplications facts can be obtained.

                         Brain Sizzlers
                     Complete the following multiplication grid by writing the numbers from the clue box.

                         1.                                               2.
                              ×                                                 ×         6

                                   27 45 54           Clue Box                  9   45         27        Clue Box

                                   24 40 48         6, 3, 8, 7, 9, 5            4   20 24 12          5, 54, 12, 2, 3

                                   21 35 42                                         10          6

                  Mathematics-3                                                                                          83

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