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7381. http://hea-www.harvard.edu/ECT/pdf/warpa.pdf
Name 12 1 11 2 10 9 3 8 4 765 12 1 11 2 10 3 9 8 4 765 12 1 11 2 10 3 9 8 4 5 76 12 Noon Boston San Franciso London If it is 12 noon in Boston, Massachusetts, what time is it in the other two cities? Draw in the hands of the clock and write in the time. Use the space below for your math.
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Ссылки http://hea-www.harvard.edu/ECT/pdf/warpa.pdf -- 12.9 Кб -- 21.01.1999
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7382. http://hea-www.harvard.edu/ECT/pdf/Tilt.pdf
Tilt-A-World According to the National Science Education Standards, children should know how much the Earth tilts on its axis of rotation. ... Vocabulary words which can be integrated into this Thread are tilt, seasons, clockwise, counter clockwise, equinox, solstice, and year. ... The tilt of the Earth is not directed towards or away from the Sun, so it could be said that these seasons are more like what the planet's weather would be like if the Earth did not tilt at all. ... Maybe the world tilted? ...
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Ссылки http://hea-www.harvard.edu/ECT/pdf/Tilt.pdf -- 69.8 Кб -- 21.01.1999
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7383. http://hea-www.harvard.edu/ECT/pdf/thrintro.pdf
How to Use the Threads of Inquiry As a teacher, you are probably wondering how to introduce this material into your existing classroom, how challenging it will be, or even how appropriate the material is under the nation's new education reform acts. ... First, this curriculum is designed to help your students acquire the skills and confidence needed for an inquiry-based curriculum to work successfully. Built into the curriculum are a number of tools for you to encourage inquiry in your classroom. ...
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Ссылки http://hea-www.harvard.edu/ECT/pdf/thrintro.pdf -- 90.4 Кб -- 21.01.1999
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7384. http://hea-www.harvard.edu/ECT/pdf/Thick.pdf
Through Thick and Thin In this Thread, we will discover how a given amount of light changes in intensity when the area it shines on changes.We will also make a final observation about the change in light and heat that happens when we tilt towards or away from the Sun. This explains why things seem less warm during the winter months, when the section of Earth we live on is tilting away from the Sun. ... Different amounts of the paper get covered with light when the flashlight or paper is tilted. ...
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Ссылки http://hea-www.harvard.edu/ECT/pdf/Thick.pdf -- 113.3 Кб -- 21.01.1999
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7385. http://hea-www.harvard.edu/ECT/pdf/sunearth.pdf
A Diagram of the Earth-Sun Relationship Notice that the Earth's tilt is always directed towards one place in space (in this model, it is towards the left. But notice all you need to do is move your perspective to underneath or some other side, and saying the pole tilts towards "the left" becomes meaningless. ... The Earth moves around the Sun during a year, changing the lineup between forward tilt and Sun, and hence causing the seasons. ... 88 Everyday Classroom Tools: Latitudes and Attitudes ...
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Ссылки http://hea-www.harvard.edu/ECT/pdf/sunearth.pdf -- 65.6 Кб -- 21.01.1999
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7386. http://hea-www.harvard.edu/ECT/pdf/thicka.pdf
Name Using a flashlight, how can you make these shapes? Tell me about the amount of light hitting each square.
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Ссылки http://hea-www.harvard.edu/ECT/pdf/thicka.pdf -- 5.7 Кб -- 21.01.1999
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7387. http://hea-www.harvard.edu/ECT/pdf/Shadow.pdf
Me and My Shadow In this Thread, we will become familiar with the orientation of shadows, their size in relation to the object casting them, and how the alignment of the Sun, the object, and the shadow tells us much about how shadows work. ... The higher the light, the less light lines get blocked by the object and hence the less shadow. Thus, the lower the light source is Everyday Classroom Tools: Me and My Shadow 49 aimed at the object, the more the object blocks the lines, or rays, of light. ...
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Ссылки http://hea-www.harvard.edu/ECT/pdf/Shadow.pdf -- 262.1 Кб -- 21.01.1999
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7388. http://hea-www.harvard.edu/ECT/pdf/Stick.pdf
... By using the shadow of the Sun during the day, we may make safe and accurate measurements of that motion. ... Do you think our sunlight shadows could move, too? ... Time to roll. ... We might all make some guesses as to where we think the shadow might be next time we come out to check our set-up by placing rocks or sticks on the paper. ... The last thing to think about with this single data set is the time it took for the Sun to zip across the sky or the shadows to zip across the paper during the...
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Ссылки http://hea-www.harvard.edu/ECT/pdf/Stick.pdf -- 206.6 Кб -- 21.01.1999
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7389. http://hea-www.harvard.edu/ECT/pdf/sticka.pdf
This is a Stickup! 12 pm Name 1 pm 2 pm 1 1 am 10 am What is wrong with this picture? Why?
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Ссылки http://hea-www.harvard.edu/ECT/pdf/sticka.pdf -- 8.6 Кб -- 21.01.1999
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7390. http://hea-www.harvard.edu/ECT/pdf/Seek.pdf
To Seek or Not to Seek? In this Thread, we will begin our experience with the tools of scientific inquiry. We will be observing our world, inside and outside of the classroom, looking for changes, perspectives, and patterns. ... Looking around outside will reveal many interesting things about the world around us. ... How many Investigation students in the classroom could tell you what the sky Everyday Classroom Tools: To Seek or Not to Seek? ... Inquiry the world outside the classroom. ...
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Ссылки http://hea-www.harvard.edu/ECT/pdf/Seek.pdf -- 323.0 Кб -- 21.01.1999
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7391. http://hea-www.harvard.edu/ECT/pdf/phases.pdf
Phases of the Moon Phases of the Moon are not caused by the Earth's shadow. They are due to a change in our viewing perspective as the Moon orbits around us as it is lit by the Sun. ... The Earth spins in the light, so that the entire Earth gets to be lit at some point each day. Even though the Moon is always half-lit like the Earth is, sometimes we on the Earth see only a tiny bit lit, other times completely lit, depending on where the Moon is in its orbit around the Earth. ... Look at Day 7. ...
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Ссылки http://hea-www.harvard.edu/ECT/pdf/phases.pdf -- 23.2 Кб -- 21.01.1999
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7392. http://hea-www.harvard.edu/ECT/pdf/Latitudes.pdf
Latitudes and Attitudes This Thread invites us to explore the effect our latitude has on the shadows we get from the Sun. ... Vocabulary which can be introduced to help us talk about our experiences are latitude, altitude, angle, triangle, sides, and parallel lines. ... We call the imagined horizontal line running Some time outside is needed to recreate around Earth's middle the equator. the Stick-Up! observation. ... What is the shape being made by the lines of sun stick, shadow, and sunlight line? ...
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Ссылки http://hea-www.harvard.edu/ECT/pdf/Latitudes.pdf -- 191.5 Кб -- 21.01.1999
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7393. http://hea-www.harvard.edu/ECT/pdf/Light.pdf
You Light Up My Life Next, we want to determine the behavior of sunlight from observations outside and inside the classroom. We will learn about how light travels by using mirrors, prisms, and shadow makers. ... White light, or the common light from the Sun, is a tight tangle of all visible colors of light. ... Where are the shadows? ... Outside, find a place where there is space to spread out 44 Everyday Classroom Tools: You Light Up My Life Why are shadows always pointing away from the Sun? ...
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Ссылки http://hea-www.harvard.edu/ECT/pdf/Light.pdf -- 197.7 Кб -- 21.01.1999
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7394. http://hea-www.harvard.edu/ECT/pdf/intro.pdf
Observing the World Around Us An Introduction for Teachers and Parents Our everyday experience of the world around us is an invitation to question and explore and wonder: s s During the day, we see a bright sphere called the Sun move across the sky. ... This is the essence of science: to be explorers of our own world, to engage ourselves in the Spirit of Inquiry by observing what is around us, asking questions and looking for answers that are consistent with our experience. ... Topics: Life cycles. ...
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Ссылки http://hea-www.harvard.edu/ECT/pdf/intro.pdf -- 37.6 Кб -- 21.01.1999
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7395. http://hea-www.harvard.edu/ECT/pdf/lata.pdf
Name Sun Draw in the shadow for each planet.
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Ссылки http://hea-www.harvard.edu/ECT/pdf/lata.pdf -- 19.2 Кб -- 21.01.1999
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7396. http://hea-www.harvard.edu/ECT/pdf/Guess.pdf
Guess My Shape Understanding how light hits things of different shape and form necessitates an understanding of shape and form. ... To make one of to talk about shapes. ... Pulling shapes through a third dimension means that light shining on these shapes can fool the eye when looking at their shadows. ... So, if the Earth's shadow were to hit anything, it would be a circle-shape, and that would let us know we were right about the shape of the world. ... When light rays hit it, what shape do they make? ...
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Ссылки http://hea-www.harvard.edu/ECT/pdf/Guess.pdf -- 151.4 Кб -- 21.01.1999
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7397. http://hea-www.harvard.edu/ECT/pdf/Hello.pdf
... In this Thread, we will examine the passage of time by watching the world change outside our classroom. ... This will allow us to begin thinking about the movement of either the Sun or the Earth as well as the shape of the Earth so that the motions make sense. ... When This question will seem odd to the students without a them what the night looks like, then return to thinking Everyday Classroom Tools: Hello, Sun! 27 about the day. ... Do we think the Sun is moving around the Earth in this shape? ...
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Ссылки http://hea-www.harvard.edu/ECT/pdf/Hello.pdf -- 168.3 Кб -- 21.01.1999
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7398. http://hea-www.harvard.edu/ECT/pdf/guessa.pdf
Name Make this shadow appear below by using the shapes in front of you and a flashlight. How many shapes can make this shadow? Why is this so?
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Ссылки http://hea-www.harvard.edu/ECT/pdf/guessa.pdf -- 13.0 Кб -- 21.01.1999
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7399. http://hea-www.harvard.edu/ECT/pdf/eclipse.pdf
Solar Eclipses Notice that both the Sun and the Moon appear in the sky to be about the same size: half of a degree. ... The Earth would cast a shadow on the Moon when they were all three lined up. When the Moon blocks the Sun, we call it a solar eclipse. The other eclipse is when the Sun-EarthMoon lineup is in effect, and the Earth blocks the Moon. ... Lunar eclipses, however, are easier to see, since the shadow of the Earth on the Moon is quite large. ...
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Ссылки http://hea-www.harvard.edu/ECT/pdf/eclipse.pdf -- 29.1 Кб -- 21.01.1999
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7400. http://hea-www.harvard.edu/ECT/pdf/Daymarks.pdf
Telling Time without a Clock: Scandinavian Daymarks How would we measure time without a clock? ... The Sun's path changes much more over the course of the year as one moves Everyday Classroom Tools: Scandinavian Daymarks 171 farther from the equator. ... It is the Midday daymark. ... 180 Everyday Classroom Tools: Scandinavian Daymarks On the other hand, in the summer, there was a lot of activity--and luckily the Sun would be up most of the time, so that it would be very easy to tell what time it was. ...
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Ссылки http://hea-www.harvard.edu/ECT/pdf/Daymarks.pdf -- 261.7 Кб -- 21.01.1999
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