Whole group time allows early childhood teachers to do all of the following except
a. review previously covered material so that all children are getting the same information at the same time.
b. work one on one with children in need
c. set expectations
d. introduce new concepts.

B. Work one on one with children in need

Explanation:

Whole group time allows early childhood teachers to introduce new material. It ensures that each student is presented and reviewed with uniform key concepts. It also sets expectations in planning and developing the lessons because it provides baseline assessments.The only thing that seems impossible in this activity is that teacher can give individual or one-to-one attention to each student.

hence the correction will be option B Work one on one with children in need

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle