Grade 4 has also been learning that explorers use many different skills and tools to help them make discoveries. One important skill for them is observation. Being able to use their senses to determine details and analyze them is essential for thinkers to find new understandings about our world and science. To practice this, the students watched the phases of the moon and recorded their observations in pictures, questions and ideas. They then learned that Pythagoras was curious about and observed the moon in about the year 500 BC. He determined from the curve in the shadow that the moon was round. He then predicted that the Earth was also round over two thousand years before it was proved!
The students also started to act like Galileo questioning the principles of gravity. They found objects of different masses, dropped them at the same time, observed how they acted, and recorded their observations.