The student is not involved in the discussion of the questions posed during the Explore phase, and no documentation is captured.You can use these assessment rubrics with the observation rubrics grid, which you will find in the “Assess with WeDo 2.0” chapter.ĭuring the Explore phase, make sure the student is actively involved in the discussion, asks and answers questions, and documents and offers responses to questions, such as, “What are the different stages of a frog’s life?” in his/her own words. Have teams compare and share their findings and have them share the impact of external factors on the frog populations. You could expand this modeling project to include other plants and animals. Animals and plants have similar growth processes, and offspring are related to the previous generations as inherent traits are realized. The framework for science education stresses that plants and animals have predictable characteristics relating to life processes, change, and growth. Have your students illustrate with their model the effect of such factors on frog behaviour and on the frog’s life cycle. Pollution or disease: Frogs could mutate by growing an extra leg or losing one.Changes (such as damage or destruction) of habitats: Frogs would not find a mate or would not be able to move freely or find food that they need.For example, they have a porous skin that can allow chemicals to affect their development.Īsk students to research the effects of damaging external factors on the frog life cycle. Keep in mind that these tasks extend upon those of the “Use the model” section and are designed for older or more advanced students.įrogs are amphibians that are very sensitive to the environment. The “Use the model further” section of the student project as an optional extension. Use the model further (optional, 45-60 minutes) It is important to note that because a student model will vary according to student choice, there are no building instructions or sample programs provided to students for this part of the project. For example, with a Motion Sensor placed on the frog’s head, it could be programmed to wait until it detects an object such as a hand and then move backward. Students could use sounds or the Motion Sensor to change the frog’s behaviour. Removing the tail, adding a mature tongue, changing the eye position, and adding patterns on the skin are additional ways to make the model look like an adult frog. Students may modify their existing programs or create new ones to move the new legs. Students can also change the positions of the legs to show the different types of movements made by an adult frog. Students could build bigger legs in the back and create front legs. The young frog will develop both front and back legs during its life. Morphing from a young frog (froglet) to an adult frogĪfter building the young frog, students should then modify it to create their own model. Encourage them to use text, videos, images, sketch notes, or another creative medium. Do humans go through metamorphoses? How do you know?Īlthough humans’ body shapes grow during their lives, they don’t change.Īllow the students to select the tool(s) they find most appropriate for capturing and sharing their pseudocode.No, butterflies and moths undergo complete metamorphoses, and dragonflies and many fish experience incomplete metamorphoses (as well as various other organisms). Are frogs the only animal to go through metamorphoses during their life cycle?.What are the stages in the life of a frog?įor frogs, it would be egg->tadpole->froglet (young frog)->adult frog. ![]() Plants have similar life cycles to frogs because they both change shape during their lives and have a stage where they don’t look like the adult stage (tadpole in the case of the frog, seedling in the case of the plant). How are life cycles of plants and animals similar?.Tadpoles often move from aquatic to terrestrial environments as they morph into adult frogs, so their bodies must support different ways of eating, breathing, and moving. What are some links among the changes of a frog’s physical characteristics and its habitat?Īnimals morph so they can survive in a new environment.This is merely a list of some of the most obvious changes that occur as a frog undergoes metamorphosis and is not intended to be an exhaustive description. The jaw changes shape, tail recedes, tongue for catching flies develops, hind legs and then front legs begin to grow, and lungs develop as gills disappear. What physical features are changing as a frog progresses from tadpole to adult?.
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