Lesson 9A: Eclipses
Estimated Time: Two-45 minute classes
Indicators(s): Core Learning Goal 1
Indicators(s): Core Learning Goal 2
Students will explore the relationship among the sun, earth, and moon and the different types of eclipses. Students will describe ancient stories and myths about eclipses. Students will analyze data to determine when the next solar or lunar eclipse will be visible in the Maryland area. By constructing a model, students will illustrate the positions of the earth, moon, and sun during a solar and lunar eclipse.
Background knowledge / teacher notes:
Students will read accounts of past interpretations of eclipses. Prior to the lesson, download these accounts from http://www.exploratorium.edu/eclipse/dragon.html or http://www.kidseclipse.com/. Click on Teach, then Lesson Plan Outline, choose "How do eclipses fit in myths, stories and history?" Good pictures of eclipses and working models may also be found at this site.
After analyzing the data in the charts, students will note that eclipses occur in a pattern of a solar eclipse followed by a lunar eclipse approximately 15 days later, or a lunar followed by a solar approximately 15 days later. This pattern tends to repeat itself approximately every six months. For more information visit http://www.earthview.com/tutorial/patterns.htm.
Read accounts of how people in the past viewed eclipses by visitinghttp://www.exploratorium.edu/eclipse/dragon.html or http://www.kidseclipse.com/. Click on Teach, then Lesson plan outline, choose "How do eclipses fit in myths, stories and history?"
Describe how people in the past have interpreted eclipses.
In their journals, students will hypothesize causes of eclipses.
This NASA site contains a gif image of a photograph showing a full solar eclipse.http://spacelink.nasa.gov/Instructional.Materials/Curriculum.Support/Space.Science/Our.Solar.System/Our.Sun/Solar.Eclipse-full.gif
Students will examine how an eclipse occurs by constructing a model.
For a description of a set-up similar to this, visithttp://www.kidseclipse.com/. Click on Teach, then Lesson Plan Outline and then choose "What is an Eclipse?"
Turn the lights down. Students turn on the flashlight to see the eclipse
Students will draw a picture of the eclipse.
Now using the same materials, generate a different type eclipse.
Students will present their models to the class.
Class will discuss the differences between a solar and lunar eclipse.
This NASA site contains a photograph of the moon and a variety of background information about the moon, moon exploration, and more.http://spacelink.nasa.gov/Instructional.Materials/NASA.Educational.Products/Solar.System.Lithograph.Set/Moon/.index.html
Students will read the articles on eclipses found athttp://www.mreclipse.com/Special/Leprimer.html. or http://members.nbci.com/juan_parada/eclipse/guia/guide3.htm
Answer the following questions:
GT Connection: Explain the differences among the partial, annular and total solar eclipses.
Place students in groups of four. Subdivide the groups into pairs.
Each pair of students will collect data on either solar and lunar eclipses
Students will construct a chart to record the date and type of solar or lunar eclipses.
GT Connection: include penumbral lunar eclipses and annular solar eclipses.
Solar Eclipse Instructions
Lunar Eclipse Instructions
When you are looking for the map of the eclipse, make sure you scroll down in order to see the correct map.
After completing the chart, the students will reform their groups and exchange information.
Students will analyze the data to detect patterns between the occurrence of solar and lunar eclipses.
Record observations in the journal.
Class will discuss perceived patterns and observations.
FAQ(FREQUENTLY ASKED QUESTIONS)
This NASA site presents 27 frequently asked questions about eclipses that are each linked to an answer for each question.http://sunearth.gsfc.nasa.gov/faqecl.html
Have students prepare a brochure advertising the next partial or total eclipse visible in their area. The brochure should include an explanation of the type of eclipse, the best time to view it, and the safest way to view the eclipse.
For each group: Computer
4 in. Styrofoam ball
1 in. Styrofoam ball
Eclipse myths and stories. Available:http://www.exploratorium.edu/eclipse/dragon.html http://www.kidseclipse.com/.
Eclipse tutorials. Available:http://www.earthview.com/tutorial/patterns.htm http://www.exploratorium.edu/eclipse/why.html
Solar and Lunar eclipses. Available:http://sunearth.gsfc.nasa.gov/eclipse/eclipse.html http://www.MrEclipse.com/Special/LEprimer.html http://members.xoom.com/juan_parada/eclipse/guia/guide0.htm http://www.drdale.com/eclipses/lunar.htm