Sound is created through a disturbance of particles which results in pressure variations among air molecules. The areas of increased pressure resulting from air molecules bunching up are known as?

a. Rarefaction
b. Compression
c. Amplitude
d. Frequency
e. Intensity


B

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This type of book was sold by peddlers and used to teach reading and numbers to children after the introduction of the printing press

a. chapbooks b. hornbooks c. picturebooks d. the Bible

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What strategies are likely to be most effective in teaching a young child to throw a ball?

A. Playing a video of a professional baseball pitcher followed by discussion. B. Allowing some exploration, then demonstrating followed by oral cues and practice. C. Giving directions to children in large group followed by practice by pairs. D. Providing small soft balls and waiting for the skill to emerge on its own.

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Discuss some of the roadblocks to parent involvement in/at school

What will be an ideal response?

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A self-demand schedule is used for ______.

a. infants b. younger toddlers c. older toddlers d. preschoolers

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