Thursday, January 29, 2009

The Tech Savvy Teacher Uses Stellarium!!!

Utah Core Curriculum-Grade Three


Objective 2 Describe the movement of Earth and the moon and the apparent movement of other bodies through the sky.

Describe the motions of Earth (i.e., the rotation [spinning] of Earth on its axis, the revolution [orbit] of Earth around the sun).
Use a chart to show that the moon orbits Earth approximately every 28 days.
Use a model of Earth to demonstrate that Earth rotates on its axis once every 24 hours to produce the night and day cycle.
Use a model to demonstrate why it seems to a person on Earth that the sun, planets, and stars appear to move across the sky.
Science language
students should use:
model, orbit, sphere, moon, axis, rotation, revolution, appearance





http://www.learner.org/jnorth/images/imageshtml/earth-tilt.gif

The Tech Savvy Teacher Explores the Night Sky


We all go to school during the day, when the sun is out. How, then, can our students have a real-life experience observing the night sky at school? Our class found the answer using a brand-new technology tool called Stellarium. This program is another great reason to be a Tech Savvy Teacher!
As part of our unit on space and the solar system, our class has been learning about the rotation and revolution of the earth and moon. Because of the tilt of the earths’ axis, we have not only seasons, but seasonal constellations in the night sky as well. This phenomenon is difficult to observe at school—unless you have the help of a handy tool like Stellarium. Using Stellarium, our class first observed the rotation of the earth around the sun in both normal time and fast motion. Next, we saw how our position on Earth affected our view of the night sky.





http://www.ifa.hawaii.edu/~barnes/ast110_06/ea/01p7a.jpg


The best part of our classroom space exploration, however, was watching the apparent movement of the constellations across the night sky throughout the year. From our paper star charts, we noted that certain constellations are visible during the night only at certain times of the year.



Image from stellarium

We got to see the constellations in action as we fast-forwarded through time in Stellarium. With the click of a mouse, we visited the constellations of the summer sky, such as Lyra and Ophiuchus.

Image from Stellarium


Next, the constellations visible on a winter evening appeared for our viewing pleasure, and we watched Canis Major follow Orion across the sky.

Image from Stellarium


Stellarium even showed us the different constellation images superimposed on the stars, so we got to see how the abstract groups of stars represented pictures of people, animals, and objects.
The program Stellarium brought the night sky into our classroom in broad daylight. Our class traveled through time and even turned off the light of the sun using this handy-dandy technology. Try using Stellarium for your own space unit. It will take you on a grand tour of the sky!

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