class 3 Activity 3 to represent tables of 2 & 3 using lines and angles

Lab Activity-3

To represent multiplication tables of 2 and 3 using lines and dots.

Procedure: Draw two vertical lines as in the Fig. 3(a).

Step 1:

Step 2: Now draw a horizontal line intersecting the two vertical lines and paste bindis at the intersection representing 2 x 1 = 2 [Fig. 3(b)]. 

Step 3: Again draw two vertical lines. Now draw two horizontal lines intersecting two vertical lines and paste bindis at the four points of intersection. These points represent 2 x 2 = 4 [Fig. 3 (c)].

Step 4: Repeat the above steps drawing 2 vertical lines and three horizontal lines, intersecting at six points. These points represent 2 x 3 = 6 [Fig. 3(d)]. Step 5: Repeat the above steps with four horizontal lines intersecting the two vertical lines to represent 2 x 4 = 8 as in [Fig. 3(e)].

Step 6: Continue the activity increasing the number of horizontal lines one by one

upto ten and complete the multiplication table. Step 7: Starting with three vertical lines and intersecting them by horizontal lines, as above obtain the multiplication table of 3 as shown in Fig. 3(f), Fig. 3(g) and Fig. 3(h).

Fig. 3(a)

Fig. 3(b)

Fig. 3(c)

Fig. 3(d)

Fig. 3(e)

Fig. 3(f)

Fig. 3(g)

Fig. 3(h)

2 x 3 =

Observations: Fill in the blanks:

) 2x1 =

2x2 =

2x 3=

2x4=

2x5 =

2×6=

 2x7 =

2 x 8 =

2x9=

()

3 x 1 =

3 x 2 =

3 x 3 =

3 x 4 =

3 x 5=

3 x 6 =

3 x 7 =

3 x 8 =

3 x 9=

3 x 10 =

Extension: You may initiate discussion among the other students for the process of 3 x 10 = developing the tables of 4 and 5.