Development in Action: Math KnowledgeClick on the above link to access the Interactive eBook. Once you've signed in, scroll to page 257 and watch the video. When you've finished watching the video, come back to the test and answer the following question:If the columns of blocks in the video were rearranged and moved farther apart and a child could detect that the amount of blocks still remained the same after being rearranged, which of the following abilities would the child be demonstrating?
A. conservation of number
B. conservation of volume
C. reversibility
D. primary circular reactions
Answer: A
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