The devices which are used to make teaching methods more effective are known as:

Which method of teaching is suitably used to teach Mathematics for the following situations?

A. To give mathematical information.

B. To introduce the new topic or lesson and new points of Mathematics.

C. To give the information regarding historical development of Mathematics.

In Class III, a teacher asked the students to add $4562$ and $728$. A student responded to the question as follows:

$$\begin{gathered} 4562 \\ \frac{+728}{11842} \end{gathered}$$

The response reflects that the child lacks the:

After teaching the concept of division, a teacher created a 'Mathematical Wall' in the classroom and asked the students to write any two division facts in the assigned columns within $48 h$

This activity can help the teacher to:

Sequence the following tasks as they are taken up while developing the concept 'measurement':

I. Learners use standard units to measure length.

II. Learners use non-standard units to measure length.

III. Learners verify objects using simple observation.

IV. Learners understand the relationship between metric units.