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Lesson 4. Observing the Frogs more Closely. Materials. Copy of record sheet 4-A: Observing the frog Copy of record sheet 4-B: Drawing the frog Hand lens One frog placed in a clear cup with a lid per pair of students. Overview.

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lesson 4

Lesson 4

Observing the Frogs more Closely

materials
Materials
  • Copy of record sheet 4-A: Observing the frog
  • Copy of record sheet 4-B: Drawing the frog
  • Hand lens
  • One frog placed in a clear cup with a lid per pair of students
overview
Overview
  • Discuss which characteristics are important to study when comparing animals.
  • Discuss the purpose of scientific drawings and the elements that should be included in a drawing of the frog.
  • Observe, describe, and record the characteristics of the frog.
  • Discuss ways to answer your questions about the frogs.
background
Background
  • When studying the ways an animal is suited to life in a particular habitat, biologists look at the animal’s body structure and behavior.
  • Biologists often then compare these characteristics with those of other animals.
  • This comparison helps them recognize how and why a type of animal survives best in a particular habitat.
slide5

You will use both words and drawings to record your observations of the frog’s characteristics.

  • This is also the method scientists use to share research discoveries in print.
  • Text and illustrations together present a more complete picture than either by itself.
  • In general, illustrations are easier to remember than text.
  • Scientists drawings, powerful tools of communication, are used to clarify, simplify, summarize, and emphasize information.
  • Common subjects of scientific illustrations are anatomy, techniques, and procedures.
meeting with your pod
Meeting with your Pod
  • Time limit
  • Share observations, discoveries, questions, and comparisons with groups
  • Use research, background knowledge, and observations to answer questions that come up
  • Whisper
  • Write down observations, discoveries, questions, and comparisons discuss with group
slide7

Think about your observations of the frogs.

  • Think about the frogs features and behavior that help the frog get what it needs from its habitat.
  • What characteristics of the frogs should we focus on?
slide9

What do you think a scientific drawing is?

  • Where have you seen scientific drawings of animals?
  • Why do you think scientific drawings of animals are made?
  • How do you think scientific drawings are used?
  • In what ways do you think a drawing of the frog will help you compare the frog with other animals?
  • What should be included in a scientific drawing of the frog?
slide10

Put a frog in an observing cup to allow each pair to observe the frog’s body more closely.

  • Draw a picture of the frog in its habitat.
  • When finish, gently pour the frog and water back into the habitat, trying not to disturb the plants.
  • Discuss observations with group and any new questions you may have.
  • What would you like to know about our frogs?
  • In what ways does having a drawing help you better understand the written descriptions of the frog’s characteristics?
  • Would a drawing alone give you enough information?
  • Share what wrote in notebook.
extensions
Extensions
  • Write a letter to a herpetologist to find out more information about Dwarf African Frogs.
  • Research frogs related to the Dwarf African Frog and create a display comparing them.
  • Research frogs that are not totally aquatic. How are Dwarf African Frogs similar and different to other frogs?
  • Make origami frogs.
  • Explore the reasons frogs call. Listen to recordings of frog songs.