Week of: February 20
Students begin looking at food chains in 3rd grade, and how different organims, such as producers and consumers, play different roles within a food chain. In 4th grade, students will be looking at how food chains are part of food webs, and exploring decomposers and their roles within food chains and webs. This week, we will be focusing on explaining the differences between consumers, producers, and decomposers. We will also focus on distinguishing between consumers, producers, and decomposers as related to the flow of energy in food webs. Area of focus:
- creating food webs that show the flow of energy from the Sun to producers to other organisms.
- predicting how changes in the ecosystem affect organisms in food webs
- making real world connections to different food webs using a variety of media
- observing and investigating a variety of producers and consumers
Food chains have 1 path that energy follows as it is being transfered to organisms. A Food web has MANY paths energy might take as it is being transfered to different organisms. Food webs show a more complete view of ecosystem interactions.
- Students began learning about botanists and George Washington Carver's role in crop rotation.
- Students identified the differences between producers and consumers.
- Students investigated a variety of producers and how they make their own food through the process of photosynthesis.
VOCABULARY Students should already know the terms consumer producer, food chain, food web, transfer of energy, and ecosystem. Carnivore, herbivore and omnivore may be 3 new terms for most students during this unit. We can identify carnivores as organisms with sharp teech (such as lions), herbivores as organisms with flat teeth, such as elephants, and omnivores as organisms with both sharp and flat teeth, such as humans. Decomposers are organisms that break down dead or decaying organic matter (like plants and animals). Mushrooms, worms, ants, and bacteria are examples of decomposers.
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Transcript
Week of: February 20
Students begin looking at food chains in 3rd grade, and how different organims, such as producers and consumers, play different roles within a food chain. In 4th grade, students will be looking at how food chains are part of food webs, and exploring decomposers and their roles within food chains and webs. This week, we will be focusing on explaining the differences between consumers, producers, and decomposers. We will also focus on distinguishing between consumers, producers, and decomposers as related to the flow of energy in food webs. Area of focus:
- creating food webs that show the flow of energy from the Sun to producers to other organisms.
- predicting how changes in the ecosystem affect organisms in food webs
- making real world connections to different food webs using a variety of media
- observing and investigating a variety of producers and consumers
Food chains have 1 path that energy follows as it is being transfered to organisms. A Food web has MANY paths energy might take as it is being transfered to different organisms. Food webs show a more complete view of ecosystem interactions.VOCABULARY Students should already know the terms consumer producer, food chain, food web, transfer of energy, and ecosystem. Carnivore, herbivore and omnivore may be 3 new terms for most students during this unit. We can identify carnivores as organisms with sharp teech (such as lions), herbivores as organisms with flat teeth, such as elephants, and omnivores as organisms with both sharp and flat teeth, such as humans. Decomposers are organisms that break down dead or decaying organic matter (like plants and animals). Mushrooms, worms, ants, and bacteria are examples of decomposers.