Q. Vikas teaches mathematics to a class of 56 students. He believes that conducting a test is effective if the feedback is given immediately. He conducted a short class test of 10 marks. What is the best possible way of giving the feedback effectively ?
Option
(1) He can let the students check each other’s answer
(2) He can explain the solution of each problem on the board and ask the students to check their answer on their own
(3) He can have a whole class discussion on ways in which they have got their solutions and which is the effective strategy to arrive at the correct answer
(4) Pick out any copy at random and discuss the method followed in the copy on the board
Q. While teaching comparison of fractions in which the numerators are same e.g. 35 and 37 Rohit’s response was ‘‘since the numerators are same and since 7 is larger than 5, therefore 37 is bigger than 35 .’’
This suggests that
Option
(1) Rohit does not understand the magnitude of fractions
(2) Rohit does not know the concept of numerator and denominator
(3) Rohit does not know the concept of equivalent fractions
(4) Rohit has not practised well
Q. The length of a rectangle is ‘l’ and its width is half of its length. What will be the perimeter of the rectangle if the length is doubled keeping the width same?
two pipes A and B can fill a cistern in 15 and 20 min,.while third pipe C can empty it in 30 min.if three pipes opened successively for one min each,how long wll it take to fill the cistern?
Option
(1) It has six faces and each face is a hexagon
(2) It has a hexagonal base with six triangular faces meeting at a point
(3) It has two hexagonal faces and six rectangular faces
(4) It has six hexagonal faces joined by six rectangular faces
Life is good for only two things, discovering mathematics and teaching mathematics.
Simeon Poisson
There is something I don't understand about algebra: It has been around for thousands of years, yet no one has ever found out what the value of "x" or "y" really is.