The question- The teacher gives her students 8 faces and 7 smiles and tells them to match the smiles with the faces. What concept is the teacher helping her students understand?

Is it one to one concept? One to many? or One more than?

I think it is one more than but not sure if that is even a concept that is taught.

It looks like one more than, but like you I am not sure that is a concept at this level. There is a more than one concept for grade K where the students are given pictures of different objects like one chair and two tables and they have to circle the one that is more than one.

I know one-one is concept. Would this example be showing that we don't have one-one concept here?

To determine the concept that the teacher is helping her students understand, let's analyze the information provided. The students are given 8 faces and 7 smiles and are asked to match the smiles with the faces.

Based on this information, it seems that the teacher is trying to teach the concept of "ONE TO ONE" matching. In one-to-one matching, each item from one set is paired with exactly one item from another set.

In this case, the teacher is instructing the students to match each face with one smile, providing an opportunity for the students to practice pairing each element from one set (smiles) with an element from another set (faces) on a one-to-one basis.

The concept of "one more than" does not seem to be relevant to this particular task since there is no indication of comparing quantities or evaluating relationships between numbers.

Therefore, the correct concept being taught in this scenario is most likely "one-to-one matching."