Reflection: Lesson Planning Alkali Metals: Valance electrons in action! - Section 3: Explore/Explain


I had a lot of students absent on the day of this demo.  I didn't have enough supplies to do it over, nor did I want to excuse the kids from learning the material.  I felt that this material was important enough to search for an alternative assignment.

As I was searching I came across a website that has video explanations for each element on the periodic table, or in the case of the group 1 and 2 metals, a demonstration that illustrate their reactivity.  These videos are an excellent alternative to having to redo the demo for each student and provides enough insight to guide students through the actual lab that the rest off my students completed.

All students have to do is go to, click on the element that want to view on the interactive periodic table and watch a short video explanation.  This website is awesome and has a lot of other applications beyond this.  I will plan on adding it to my periodic table webquest that was an activity in Exploring the Periodic Table lessons  

  Absent students
  Lesson Planning: Absent students
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Alkali Metals: Valance electrons in action!

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

Objective: TSWBAT Summarize the patterns of reactivity at the macroscopic level using the periodic table. e.g. patterns across periods and down groups/families of the main group elements.

Big Idea: Kids love this alkali metals demo day...they are amazed when water catches on fire!

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