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unidad 3.pdf
- 2. The purpose of this presentation is to promote discussion among my students about their five senses. It will also introduce the students to terms that are opposite.
- 4. Using Power Point I will use this specific power point program early in the school year to teach my first science unit which ties in with my first reading theme. I hope to create other power point presentations throughout the year to supplement my science lessons since we do not have a science book in first grade. My students work on several projects throughout the year which they present orally to the class. As the year goes on I would like to have my students create an individual slide about their project. I would like to incorporate all these slides into a power point presentation that could then be shown to their parents.
- 5. Can you name your five senses? sight hearing smell taste touch
- 6. see colors. read books With our eyes we can… watch tv What do you see around you now?
- 7. Eye care
- 8. Tools for eyes What other tools help us see?
- 9. telescopes microscopes magnifying glass binoculars Tools help us see things that are near and far, big and little.
- 10. With our ears we can hear… bells ringing People singing babies crying Listen carefully now –what do you hear?
- 11. Can you name the sound you hear? 1 2 3 4
- 12. Using your sense of hearing
- 13. Care for ears wear ear protection avoid loud noises have hearing checked
- 14. With our nose we smell… flowers smoke garbage What animal stays safe because of our sense of smell?
- 15. Some smells remind us of things.
- 16. With our mouth we can taste… sweet bitter salty sour
- 18. Name the taste
- 19. With your skin you can feel…
- 20. QUESTIONS WHAT ARE THE ORGANS OF THE SENSES? WHAT ARE THE SENSES? WHICH ARE THE DIFERENTS TASTES?
- 21. ACTIVITIES 1.- Match each picture with the senses.
- 22. ACTIVITIES 2.- Complete the sentences. I see with my __________________. I hear with my ________________. I taste with my ________________. I touch with my _______________. I smell with my ________________.
- 24. The nerveous system The nervous system has two main parts: CENTRAL NERVOUS SYTEM PERIPHERAL NERVOUS SYSTEM
- 25. CENTRAL NERVOUS SYSTEM The brain is inside the skill. It has got three main parts: Cerebrum Cerebellum Brain stem. The spinal cord is insede the spinal column.
- 26. THE BRAIN
- 27. VOLUNTARY AND INVOLUNTARY MOVEMENTS Nerve impulses for voluntary movements go from the brain to the muscles. Tehe nerve impulses for involuntary movements go from the spinal cord to the musles.
- 28. ACTIVITIES Anwser the questions: a) Which are the parts of nervous system? b) What are the three main parts of the brain?
- 29. ACTIVITIES 3 Write if this movement is voluntary or involuntary. Sneezing when you have fot a cold. Take a book. Playing a muscial instrument Pulling back your hand from something hot.
- 32. SEX CELLS MALE SEX CELLS The male sex cells is sperm.
- 33. SEX CELLS FEMALE SEX CELLS. The female sex cells is ovum.
- 34. FECUNDATION If there is any ovum (egg cell) released, the egg cell and the sperm cells meet.
- 35. FECUNDATION Once a sperm fertilizes an OVUM, it becomes a zygote. The zygote then divides itself to form a very tiny ball called an embryo. The embryo continues downwards and finds itself a confortable place in the uterus.
- 36. FOETAL DEVELOPMENT The embryo becomes a foetus (say fee- tus) eight weeks after fecundation. The foetus depends upon its mother for protection, oxygen and nutrients as it develops. Inside the uterus, there is a bag called the. ‘Amnion’
- 37. BIRTH After nine months the baby is fully developed and ready to be born into the big wide world.
- 38. ACTIVITIES • 1.- What is the foetal development? • 2.- Match the words with definition. Sperm Sex female cells Ovum Sex male cells Zygote Inside the uterus,