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Teaching Point: “To analyze the factors affecting the angle of insolation.”

Do now Quick Write: Of the total energy (100%) leaving the Sun, how much do you think actually transmits the atmosphere to reach Earth’s surface? Why do you think so?

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TP: “To analyze the factors affecting the angle of insolation.”

51% of Insolation Reaches Earth

Task- Question: Why do you think the top of clouds are better reflectors of insolation rather than absorbers?

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Insolation Angle and Altitude

Task- Question: How is the altitude of the Sun in the sky related to the angle of insolation?

TP: “To analyze the factors affecting the angle of insolation.”

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Different Sunlight Concentration

TP: “To analyze the factors affecting the angle of insolation.”

Task- Question: How is the concentration of sunlight hitting the ground changing as the angle of insolation decreases?

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Changing Energy Per Area

TP: “To analyze the factors affecting the angle of insolation.”

Higher AoI = more insolation/per area = higher temp

Lower AoI = less insolation/per area = lower temp

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Insolation and the Time of Day

Noontime has the highest Angle of Insolation. Any other time has a lower angle.

TP: “To analyze the factors affecting the angle of insolation.”

Highest Angle.

Lower Angle.

Lowest Angle.

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Seasonal Changes of Insolation

TP: “To analyze the factors affecting the angle of insolation.”

Task- Question: How is the diagram showing that the angle of the sun at noontime changes seasonally?

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The Sun’s Angle and the Seasons

TP: “To analyze the factors affecting the angle of insolation.”

Summer solstice (June 21^st) = highest noontime angle

Winter solstice (Dec 21^st) = lowest noontime angle

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Annual Average Temperatures

TP: “To analyze the factors affecting the angle of insolation.”

Task- Question: How do think the angle of insolation contributes to this temperature distribution shown here?

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Latitude and the Angle of Insol.

TP: “To analyze the factors affecting the angle of insolation.”

Higher latitude = lower average temps

Lower latitude = higher average temps

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End-Lesson Assessments

TP: “To analyze the factors affecting the angle of insolation.”

Try your best not to use the notes to answer the questions. Have your notes available in case you need to refer to it.

When you see the answer you think is correct keep your answer to yourself.

Wait until the entire class is done, and do not change your answer based on others!

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Lesson Assessment Question

When the angle of insolation increases, how does Earth’s temperature change?

a. Temperature increases

b. Temperature decreases

c. Temperature increases then decrease

d. Temperature does not change

TP: “To analyze the factors affecting the angle of insolation.”

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Lesson Assessment Question

What time of day has the highest angle of insolation?

a. Morning ~9AM

b. Noon; 12PM

c. Afternoon ~3PM

d. Evening ~6PM

TP: “To analyze the factors affecting the angle of insolation.”

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Regents Assessment Question

Very cold climates occur at Earth’s north and south poles because the polar region

a. are usually farthest from the Sun

b. absorb the greatest amount of insolation

c. receive the most hours of daylight

d. receive low-angle insolation

TP: “To analyze the factors affecting the angle of insolation.”

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Regents Assessment Question

Air temperature rose slightly faster in Florida than in New York State because Florida

a. has a lower angle of insolation

b. has a higher angle of insolation

c. is closer to the Prime Meridian

d. is farther from the Prime Meridian

TP: “To analyze the factors affecting the angle of insolation.”

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Let’s Review in Groups

In your group, go back into your notes and make a list of the three (3) most important concepts we learned today. Place those the three in order from the most important concept to least important.

TP: “To analyze the factors affecting the angle of insolation.”