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?
Ques ¤ रामायण के अनुसार राम और
सुग्रीव
की पहली भेंट किस पर्वत पर हुई थी?
1. किष्किन्धा पर्वत पर
2. ऋष्यमूक पर्वत पर
3. मेरु पर्वत पर
4. सुमेरु पर्वत पर
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. 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. Sequence the following tasks as they are taken up while developing the concept of measurement :
a. Learners use standard units to measure length.
b. Learners use non-standard units to measure length.
c. Learners verify objects using simple observation.
d. Learners understand the relationship between metric units.
Option
(1) a, b, d, c
(2) b, a, c, d
(3) c, b, a, d
(4) d, a, c, b
Q. Sequence the following tasks as they would be taken up while developing the understanding of shapes and space across primary classes :
a. Matches the properties of 2-D shapes by observing their sides and corners
b. Describes intuitively the properties of 2-D shapes
c. Sorts 2-D shapes
d. Describes the various 2-D shapes by counting their sides, corners and diagonals
Option
(1) d, b, a, c
(2) c, b, d, a
(3) a, d, b, c
(4) c, a, d, b
Q. From the statements given below, pick out one which does not reflect the above principle :
Option
(1) The way the material presented in the textbooks is written
(2) The activities and exercises chosen for the class
(3) The method by which it is taught
(4) Giving students set formula to solve the numerical questions
Q. When teaching ‘shapes’, a teacher can plan a trip of historical places as
Option
(1) she has completed most of the syllabus well in time and needs to provide leisure
(2) it would be a good break from the routine mathematics class and an
opportunity to improve communicative skills
(3) field trips have been recommended by CBSE, so they are a must
(4) shapes are an integral part of any architecture and such trips encourage
connections across disciplines
Students attend our lectures, not because the mathematics we teach ‘makes lots of fun’ for us, but because they believe they can learn some essential knowledge from us. And each of our young students has only one life to live. We should therefore be a
H. Behnke
Do you know what seems ODD to me?
Those numbers which are not divisible by 2.