Vygotsky proposed that thought and language are:
a. Closely connected at all stages of life
b. Largely independent before age two but closely connected thereafter
c. Closely connected early in life and become increasingly independent with age
d. Largely independent until the elementary school years and closely connected thereafter
Question 2
The following four junior high school science teachers are teaching the concept molecule to their students. In each classroom, some of the students are at Piaget's formal operations stage and others are at the concrete operations stage. In which classroom are the concrete operational students most likely to have difficulty understanding?
a. Mr. Armani lets students touch and manipulate concrete models of various molecules.
b. Mr. Bendetti lets students look at the same concrete models that Mr. Armani has used.
c. Mr. Carmen verbally describes how different elements are made up of different numbers of neutrons, protons, and electrons.
d. Mr. Davidson has students role-play being neutrons, protons, and electrons. The neutron and proton students huddle together in the middle of the room, and the electrons move around them.
The life cycle of a typical fern.
One proposed timeline of the origin of space, from physical cosmology.
An immunoblot. Lanes 1 to 3 are from an SDS gel; samples from successive stages
Stages of mitosis. Only two pairs of chromosomes from a diploid (2n)
The stages of meiosis
Stages of Oocyte Development