Reflection: Checks for Understanding Introduction to Ionic Bonding - Section 4: Evaluate


As a part of this lesson I had student complete a five question summary at the end of completing the Gizmo.  My goal of assigning these questions was to make students accountable for what they are doing and taking the assignment seriously.

I felt that this short assessment provided a excellent, easy to grade, analysis of the effectiveness of the lesson.  Overall student built a solid foundation about ionic bonding that will be elaborated in the next lesson when they start bonding with Lewis dot diagrams.  The majority of the students did well on questions 1-4 which summarized the process of becoming an ion (negative or positive); however, they struggled with question 5 which had them write a chemical formula for rubidium nitride.  I believe their struggle was caused by two issues: (1) they never learned nomenclature (not part of my curriculum) and difficulty associating nitride with nitrogen, and (2) the concept of writing formulas was just introduced to them and will take further practice.  

Later in the unit I tried the Covalent Bonding Gizmo, but found it to be less intuitive for the students as this one.   Since I found it to be less effective, I decided to not post that lesson on covalent bonding. 

  Grappling with tough concepts
  Checks for Understanding: Grappling with tough concepts
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Introduction to Ionic Bonding

Unit 4: Unit 2-Periodic Table and Bonding
Lesson 6 of 12

Objective: SWBAT predict the number and types of bonds formed between elements based on their number of outermost electrons and position on periodic table.

Big Idea: Ionic bonding is modeled using an ExploreLearning Gizmo.

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