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The Cell

The Cell. Fourth Grade. Teaching Message 1: All living things are made up of building blocks called cells. All living things are made of building blocks called CELLS. Humans, plants, animals, and bacteria are made up of one or many cells. Where do you think cells are located in our body?

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The Cell

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  1. The Cell Fourth Grade

  2. Teaching Message 1: All living things are made up of building blocks called cells.

  3. All living things are made of building blocks called CELLS. • Humans, plants, animals, and bacteria are made up of one or many cells.

  4. Where do you think cells are located in our body? • EVERYWHERE!!! • Humans are made up of cells that work together and build muscle, bones, skin, and other organs.

  5. Teaching Message 2: Cells are incredibly small – so small that microscopes are needed to magnify them so that we can see them.

  6. How many cells are in the human body? • 10 TRILLION!!! (10,000,000,000,000)

  7. Animation: “How big is a cell?” • http://www.cellsalive.com/howbig.htm

  8. Teaching Message 3: Cells divide and make more cells to help us grow and repair in a process called mitosis. • Fertilized egg: the result of the fusion of an egg (from the mother) and a sperm (from the father) • Mitosis: the process through which cells divide • Each cell divides into two identical cells http://www.answering-christianity.com/p648029-sperm_fertilizing_egg-spl.jpg

  9. Animation: Mitosis • http://www.youtube.com/watch?v=GO5YN_t1fqw

  10. Teaching Message 4: All cells have the same basic parts to do specific tasks, including the cell membrane, nucleus, mitochondria, and endoplasmic reticulum.

  11. The Animal Cell Endoplasmic Reticulum Nucleus Cell Membrane Cytoplasm Mitochondria

  12. Teaching Message 5: Cells differentiate to become specialized cells to carry out specialized functions to result in many different types of cells such as muscle cells, nerve cells blood cells, and others.

  13. The Nerve Cell

  14. Red Blood Cells

  15. Teaching Messages • 1: All living things are made of cells. • 2: Cells are very small. • 3: Cells divide and make more cells to help us grow. • 4: All cells have the same basic parts to do specific tasks. • 5: There are many different types of cells in our body doing many different jobs.

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