A third-grade teacher provided students with cups of soil and bean seeds so that they could observe
plant germination and growth. However, most of the students overwatered their seeds and they failed
to germinate. In which of the following ways could the teacher use this experience to promote students'
scientific analysis and reflection skills?
A. sprouting the seeds in wet paper towels rather than soil so that students can better observe the
germination process
B. providing students with new soil and seeds and a measured amount of water to apply each day
C. explaining to the class that wet soil conditions can kill the seed and encourage the growth of bacteria
D. asking the class to brainstorm possible reasons for the failure of the seeds to germinate - ✔✔D
Students in a fourth-grade class are studying animal adaptations under different environmental
conditions. Which of the following strategies would be most effective for the teacher to use in order to
help the students develop a deeper understanding of this topic?
, A. assigning students a particular habitat and having them create an imaginary animal with adaptations
specific to that habitat
B. having students read about species of animals that have adapted to live in a certain habitat
C. allowing students to bring their pets into the classroom so that the class can observe them and
identify their adaptations
D. discussing ways in which humans have adapted to living in different types of climates - ✔✔A
A second-grade class hatches painted lady butterfly eggs, raises them to adulthood, and then releases
them outside. This activity is most effective for promoting the development of which of the following
types of knowledge?
A. how insects interact with their natural environment
B. the life cycles and development of insects
C. how insects obtain and use energy
D. the physical characteristics that differentiate the orders of insects - ✔✔B
During a unit on animals' food consumption, a third-grade teacher puts a cupful of pebbles and a cupful
of shelled nuts and seeds into a sturdy plastic container and screws the lid on tight. She then asks each
member of the class to shake the container vigorously ten times. After all the students have had a turn
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