Copyright

Ions Lesson Plan

Instructor: Josh Corbat

Josh has taught Earth Science and Physical Science at the High School level and holds a Master of Education degree from UNC-Chapel Hill.

Use this lesson plan to introduce students to cations and anions. Students will watch two video lessons, create a graphic organizer, and complete a hands-on activity.

Learning Objectives

After this lesson, students will be able to:

  • define cation
  • define anion
  • describe how some cations and anions bond

Length

60-90 minutes

Curriculum Standards

  • CCSS.ELA-LITERACY.RST.6-8.4

Determine the meaning of symbols, key terms, and other domain-specific words and phrases as they are used in a specific scientific or technical context relevant to grades 6-8 texts and topics.

  • CCSS.ELA-LITERACY.RST.6-8.7

Integrate quantitative or technical information expressed in words in a text with a version of that information expressed visually (e.g., in a flowchart, diagram, model, graph, or table).

Materials

  • Toothpicks
  • Gumdrops

Instructions

  • Begin the lesson by showing students a container of salt (or a picture of one). Ask students if they know the chemical formula for salt. The formula is NaCl, and it is formed of two ions. How do these ions interact to form salt?
  • Start the video lesson Cation: Definition & Examples. Pause the video at 1:32 to answer the following questions:
    • What is a cation?
    • What charge does a cation have?
    • How does a cation form?
  • Resume the video. Pause it again at 2:28 to answer the following questions:
    • What are some examples of cations?
    • What are these cations used for? Why are they important to us?
  • Resume and finish the video. Answer the following:
    • What does our body do with cations? In other words, why are they important to us?
    • What is an anion? How are they related to cations?
  • Next, begin the video lesson Anion: Definition & Examples. Pause the video at 1:09 to answer the following questions:
    • What are anions?
    • How are anions related to cations?
  • Resume the video. Pause it again at 1:51 to answer the following questions:
    • How anions form?
    • What are salts?
    • What are electrolytes? Why are they important to our bodies?
  • Resume and finish the video. Answer the following questions:
    • What are some common examples of anions?
    • What are these anions used for?

Ion Graphic Organizer

  • Now that students have an understanding of what cations and anions are, they will spend some time creating a useful graphic organizer. Have them copy the chart below:

Ion name Ion formula Cation or Anion? Charge Human use and/or interesting fact
  • Allow students some time to go back through the videos (or to peruse the text lessons attached to the videos) for this information. Some of the information may need to be found online.

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