Summative Assessment of the unit'Mensuration' can be done through

• paper-pencil test

• ICT activity

• project work

• maths lab activity

A student observed the following examples
(10)²
= (5+5)² = 5² + 2(5)(5) + (5)² = 100
= (6+4)² = 6² + 2(6)(4) + (4)² = 100
= (8+2)² = 8² + 2(8)(2) + (2)² = 100
= (1+9)² = 1² + 2(1)(9) + (9)² = 100

and concluded that

(a +b)² =a²+2(a)(b) + b²

The above method of drawing conclusions is

• analytical

• activity

• deductive

• inductive

A suitable approach to introduce Coordinate Geometry in Class IX is through the use of demonstration using 

• technology integration

• solving problems

• lecture method

• role play

Ankur got zero marks in a word problem on linear equations in an assessment. The teacher knows that he can solve linear equations correctly. The teacher ought to remark in his report

• Ankur has a problem in comprehending the language of the question, though he can solve the equations

• Ankur lacks concentration and hence has examination phobia

• Ankur is not studying and practising at home

• Ankur has not understood the concept of linear equations completely

While teaching ratio and proportion, Ms Rama demonstrated some computer operations on the screen - 'copy and paste' and 'copy and enlarge' or 'copy and reduce'. This activity maybe

• formative assessment activity

• fun activity to pass time

• pre-content activity to introduce ratio

• post-content activity

If xy=6 and x²y+y²x+x+y=63, then the value of x²+y² is

• 61

• 69

• 23

• 55

7.

A large basket of fruits contains 3 oranges, 2 apples and 5 bananas. If a piece of fruit is chosen at random, what is the probability of getting an orange or a banana?

• $\frac{7}{8}$

• $\frac{1}{5}$

• $\frac{4}{5}$

• $\frac{1}{2}$

How many times will I be writing 2 if wrote down numbers from 11 to 199?

• 38

• 39

• 36

• 37

The symbol  drawn to any size means a + 4 and the symbol  drawn to any size means b², where a and b are numbers. Then, the value of

• 32

• 9

• 75

• 35

While solving a problem based on 'Pythagoras theorem', a teacher draws the following $∆$ ABC.

Rajan argued that the ABC is not drawn correctly. The only way to draw is

Rajan has the misconception as

• he has dysgraphia 

• he lacks in analytical ability

• he is weak in geometrical concepts

• his teacher must have always drawn the triangle in this particular way