Lesson plan of Periodic Table: Non-Metal

Learning Objectives (5 minutes)

1. Comprehend the concept of a non-metal in the Periodic Table: The instructor should ensure that students understand what a non-metal is and how it fits into the structure of the Periodic Table. This includes defining a non-metal as an element that lacks metallic characteristics, including low electrical and thermal conductivity, and the ability to form covalent compounds.

2. Identify the non-metals on the Periodic Table and their properties: Students should be able to locate the non-metals on the Periodic Table and describe their properties, such as high melting and boiling points, low electrical conductivity, among others.

3. Understand the importance of non-metals in everyday life: Beyond recognizing non-metals, students should be able to relate these elements to practical applications in their everyday lives. This can include discussing how non-metals are used in products and technologies they use regularly.

Subsidiary Objectives:

• Foster Active Learning: Through the use of active learning methodologies, the instructor should encourage students to actively participate in the learning process. This can be done through group discussions, independent research, and presentations.

• Develop Research and Presentation Skills: In addition to learning about non-metals, students should have the opportunity to develop research and presentation skills. This can include researching information on non-metals and preparing presentations to share their findings with the class.

Introduction (10-15 minutes)

1. Review of Prior Concepts (3-5 minutes): The instructor should begin the lesson by reviewing prior concepts that are fundamental to understanding the current topic. This can include a quick review of the structure of the Periodic Table, the definition of elements, and classification methods.

2. Intriguing Problem Situations to Spark Interest (5-7 minutes): The instructor should then present two problem situations that involve non-metals. For instance, the instructor can ask why carbon is used in diamonds (which are solid and hard) and also in graphite (which is soft and used in pencils). Another problem situation could be why oxygen is essential for life, yet fluorine is toxic and dangerous if inhaled?

3. Contextualization of the Subject Matter (3-5 minutes): The instructor should then contextualize the importance of non-metals. One can discuss how carbon is essential for life on Earth, being the main building block of living things. Additionally, the mention can be made of how oxygen is vital for respiration, and how fluorine is used in dentistry to strengthen teeth.

4. Introduction of the Topic with Interesting Facts (2-3 minutes): To capture the students' attention, the instructor can share some interesting facts about non-metals. For example, the instructor can mention that bromine is the only element that is liquid at room temperature, or that iodine sublimates directly from a solid to a gas. Additionally, one can discuss how silicon, although a metalloid, is crucial to the semiconductor industry, which is the foundation of modern technology.

Development (20-25 minutes)

1. Activity - "Building the Periodic Table of Non-metals" (10-12 minutes):

   • Grouping the teams (2 minutes): The instructor should divide the class into groups of 3-4 students. Each group will be given a set of cards, each representing an element from the Periodic Table.
   • Instructions (2 minutes): The instructor should explain that the cards are mixed up and that the objective of the activity is for the groups to arrange the cards according to the properties of non-metals. The properties to consider can include high electronegativity, low electrical, and thermal conductivity, and a tendency to form covalent compounds.
   • Activity (5-7 minutes): The students, in their groups, should discuss and decide where each card should be placed on the "Periodic Table" that they are constructing. They should also be encouraged to justify their decisions based on the properties of non-metals. After completing the activity, each group should present their "Periodic Table" to the class and explain the reasoning behind their organization.

2. Activity - "Applications of Non-metals in Daily Life" (10-12 minutes):

   • Instructions (2 minutes): The instructor should explain that non-metals have several practical applications in our daily lives. Each group of students will be assigned a specific non-metal to research and present its applications.
   • Research (5-7 minutes): The students should use electronic devices or textbooks to research the non-metal assigned to them. They should look for different products and technologies that use the non-metal and how its properties contribute to these applications. They should also make notes of their findings.
   • Presentation (3-5 minutes): Each group should present their findings to the class. They should be encouraged to use visual aids, such as images or diagrams, to illustrate their presentations. After each presentation, the instructor should lead a brief discussion to ensure that all students comprehend the applications of the non-metal.

3. Discussion and Summary (3-5 minutes):

   • Discussion (2-3 minutes): The instructor should facilitate a classroom discussion about the activities that were conducted. Students should be encouraged to share their experiences, challenges, and new understandings.
   • Summary (1-2 minutes): Finally, the instructor should summarize the key points that were discussed and clarify any remaining doubts. This should help solidify the students' understanding of non-metals and their applications.

Feedback (10-15 minutes)

1. Group Discussion (5-7 minutes):

   • The instructor should bring all the students together and facilitate a group discussion. Each group should share their findings and conclusions from the activities that were conducted.
   • The students should be encouraged to ask each other questions and provide constructive feedback.
   • The instructor should interject as needed to clarify concepts, correct misconceptions, and encourage the participation of all students.

2. Connecting to Theory (3-5 minutes):

   • The instructor should then connect the students' findings to the theory that was discussed at the beginning of the class. This can be done by highlighting how the organization of the cards on the "Periodic Table of Non-metals" reflects the properties of non-metals.
   • Additionally, the instructor can emphasize how the applications of non-metals in daily life demonstrate the relevance and importance of these elements.
   • This step is crucial to ensure that the students did not just participate in activities but also understood and internalized the theoretical concepts.

3. Individual Reflection (2-3 minutes):

   • To conclude the lesson, the instructor should ask the students to individually reflect on what they learned. They can be asked to write a one-minute paper about the most important concept they learned, questions that they still have, and ideas that they would like to explore further.
   • This individual reflection allows the students to self-assess their learning and identify areas that may require further review or study. Additionally, the questions and ideas that they share can provide the instructor with valuable insights for planning future lessons.

4. Closure of the Class (1-2 minutes):

   • Finally, the instructor should close the class by thanking the students for their participation and effort.
   • The instructor can remind the students about the importance of non-metals in their daily lives and how the understanding of these elements can be applied in various situations.
   • The instructor should also inform the students about the topic that will be covered in the next class and any preparatory homework or readings that they may have.

Conclusion (5-7 minutes)

1. Summary of Key Points (2-3 minutes):

   • The instructor should begin the Conclusion by summarizing the main points from each section of the class. This includes revisiting the definition of a non-metal, their location on the Periodic Table, their properties, and applications in daily life.
   • The instructor should reinforce the key concepts discussed throughout the activities, such as the importance of non-metal properties in organizing the Periodic Table and how these properties contribute to their diverse applications.
   • This recap helps solidify the students' learning and reinforces the relevance of the topic.

2. Connecting Theory, Practice, and Applications (1-2 minutes):

   • The instructor should then explain how the class connected theory, practice, and applications.
   • They should highlight how the initial theoretical discussion about non-metals translated into the hands-on activities, such as building the Periodic Table and researching the applications of non-metals.
   • Additionally, the instructor should emphasize how understanding non-metals and their properties has direct implications in the applications of these elements in everyday products and technologies.

3. Additional Study Materials (1-2 minutes):

   • The instructor should suggest some additional study materials for students who wish to further their understanding of non-metals. This can include educational videos, chemistry websites, textbooks, or research papers.
   • The instructor can also provide a list of questions or topics for students to research as homework, thus promoting self-directed learning.

4. Relevance to Everyday Life (1 minute):

   • To conclude, the instructor should stress the importance of non-metals in everyday life
   • Examples of how non-metals are used in products and technologies that the students use regularly can be mentioned again, such as carbon in pencils and diamonds, or fluorine in dentistry.
   • This final connection between the lesson and the students' own lives helps reinforce the relevance of the subject and motivate them for future chemistry lessons.