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These correlations are for older materials. They do not cover the materials adopted in 2006.
  Navigate these Grade 4/5 Standards Correlations:
4th grade: Physical | Life | Earth | Investigation & Experimentation | Grade 4 Map  
5th grade: Physical | Life | Earth | Investigation & Experimentation | Grade 5 Map  
You are here: Correlations >> 5th Grade Earth Sciences >> Standard 4e >> Houghton Mifflin 

Standard:
4e Students know that the Earth's atmosphere exerts a pressure that decreases with distance above Earth's surface and that at any point it exerts this pressure equally in all directions.


Holistic Rating: Moderate coverage of this standard.
Pages E8-E13, E26-E33, and E 49 provide moderate coverage of this standard.

Aspects that help student learning:
Text describes air pressure, different effects of altitude and temperature, and different ways of investigating and measuring air pressure. Investigations, text, and illustrations complement each other.


Aspects that do not help student learning:
Air pressure changes to a much greater extent with change in altitude compared with the changes seen due to weather. Texts frequently discuss both causes of changes but do not clearly explain that the magnitude of change with altitude is much greater. Text uses a balloon to illustrate the concept of pressure being exerted equally in all directions, but does not apply this concept to air pressure in the atmosphere. Text explains the higher pressure at sea level as being due to the greater packing of air particles, but does not emphasize the effect of the cumulative mass of the air above. This is usually shown as a column of air above any given point. See the CONTENT TIP for this standard.


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