Just as the sun appears in different places in the sky throughout the day, changes big and small happen around us all the time. What other changes happen in nature throughout the day? How do the tides rise and fall? How do flowers change? What happens to the temperature
Just as the sun appears in different places in the sky throughout the day, changes big and small happen around us all the time. What other changes happen in nature throughout the day? How do the tides rise and fall? How do flowers change? What happens to the temperature?
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In this unit, students are introduced to ratios, rates, proportional reasoning, similarity and congruence. Students explore ratio as a comparison of two quantities. They discover that if the ratio between the corresponding side lengths and angle measures of two figures is 1:1 (i.e., the measures are identical), then the geometric figures are congruent. They learn that for two figures to be similar, their corresponding side lengths must be in proportion and their corresponding angles must be congruent. Students also explore the relationship between congruence and similarity, learning that al
Habia una vez . . . There lived a girl named Petra Pena, who wanted nothing more than to be a storyteller, like her abuelita. But Petra's world is ending. Earth has been destroyed by a comet, and only a few hundred scientists and their children - among them Petra and her family - have been chosen to journey to a new planet. They are the ones who must carry on the human race. Hundreds of years later, Petra wakes to this new planet - and the discovery that she is the only person who remembers Earth. A sinister Co