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Reflection:The goal of this lesson was to incorporate students use of technology in an inquiry based learning format.At the same time, I wanted to promoted learning of science in a historical perspective. To this end students, in cooperative learning groups of four individuals, use the internet to research when a particular element was discovered, who discovered the element and how that element is used in today's society. The technology component of this lesson afforded students the opportunity to practice locating relevant and credible information on-line. In fact, an implicit goal of this activity was to demonstrate to students that just because something is published on-line does not always mean that it correct. Students need to read published material critically and often question the source. Similarly, by utilizing cooperative learning strategies students learned and practiced interacting with each other in an effective manner in order to achieve a common goal. The goals as well as the instructional objectives of this lesson were met. Through this lesson I observed students developing a greater appreciation for the vast amount of information that is available on-line. At the same time I was also able to observe how each student interacted in groups. However, possible improvements for the future would include having students repeat their roles in the cooperative learning groups or even writing down their roles on a piece of paper to ensure that every member of the group is clear on their responsibilities and is taking a more active role.
Title: Element Trading Card: The Periodic Table
Class: Contemporary Science, 9th Grade Applied
Duration: 80-90 minutes
Objectives:
 Students will be able to apply their knowledge of the periodic table to identify the atomic number and the mass number.
 Students will be able to calculate the number of protons, the number of electrons and the number of
neutrons of the following elements
 Hydrogen
 Carbon
 Oxygen
 Nitrogen
 Sulfur
 Potassium
 Students will be able to use the Internet to identify when one of the following elements, Hydrogen, Carbon, Nitrogen, Sulfur and Potassium were discovered.
 Students will be able to use the Internet to identify three important uses of one of the following elements: Hydrogen, Carbon, Nitrogen, Sulfur and Potassium.
Assessment:
 Informal: Teacher observation of student work; completion of the Element Trading Cards
PA Standards:
 3.2.10D Inquiry and Design
 3.4.10 Physical Science, Chemistry & Physics
 3.4.10.A. Explain concepts about the structure and properties of matter.
Explain the repeating pattern of chemical properties by using the repeating patterns of atomic
structure within the periodic table.
Material:
 2 trade cards per group
 Periodic tables
 Internet connection
 Overhead projector
 Transparency of the Element Trading Cards directions
 Transparency of the element chart
 Guided notes (periodic table)
 Periodic table puns
Warm-Up:
 Begin the class with a Periodic Table Pun:
Las Vegas lights- Neon, Ne
Police- Copper, Cu
Procedure:
 Begin with the warm up pun.
These puns should be on the white board before the students walk in to the class.
Ask Students if they can solve the pun, for +2 point bonus
 Using the guided notes lead a brief discussion on the periodic table
1.Elements
a.Periodic table (arrangement)
1.Different types of periodic tables
a.Think mass # always bigger than atomic number
2.Periods
b.Atomic number
c.Mass number
2.Symbols of the following elements
a.Hydrogen
b.Carbon
c.Nitrogen
d.Oxygen
e.Sulfur
f.Potassium
3.Calculation of:
a.Protons
b.Neutrons
c.Electron
4.Define Isotopes
5.Define Ions
 After the discussion use the Element Trading Card Direction overhead to model the first part of the activity.
 Use the periodic table to identify the Atomic Number of “O”
 Use the periodic table to identify the Mass Number of “O”
 Calculate the Proton number, the Neutron number, and the Electron Number
 Divide the class into five groups by counting off by 5
 Assign each member of the group a task
 Responsible for Recording the information -1
 Responsible for identifying the number of protons, neutrons and electrons-2
 Responsible for identifying the Atomic Number & Mass Number -3
 Responsible for identifying three important uses of the element -4
 Responsible for identifying when the element was discovered and by whom -5
 The class breaks into groups.
 Model how to use the Internet site to identify who discovered the element, when it was discovered and the three important uses.
 Groups begin their research of their own element.
Closure:
 Regroup the students at their desks.
 As a whole class activity have the students complete the element chart for each element (hydrogen, carbon, nitrogen, sulfur, potassium).
Key Questions:
 What is an atomic number?
 What is a mass number?
 How are the protons, neutrons and electrons number found?
 How is the mass number found?
 What type of information does the mass number provide?
 What are the chemical symbols for Hydrogen, Oxygen, Carbon, Nitrogen, Sulfur and Potassium?
Extension Activities:
 Students could return to the Internet site and pick another element to research.
References:
 Trimpe, T (2001). Element Trading Cards. The Science Spot [On-line]. Available: http://scienspot.net
 Masterton, W. & Hurley, C. (1997). Chemistry Principles and Reactions( 3 rd ed) . Orlando, Fl: Suanders College Publishing.
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