TC Name: _Kathleen Borges_(996903980)___
Microteaching Lesson Plan
Date: _30/01/2012___________ i) Specific Expectation:
B2.4 draw Lewis structures to represent the bonds in ionic and molecular compounds
[PR,C] ii) Materials Needed:
Chalk
Paper for class “try it on your own” questions
Paper “Fruit Loops”
Tape
Activity Packs which include: o Paper squares o Different colours of “Fruit Loops” (8 of each colour) iii) Time Sequence:
Question of the Day (5 min)
Meditation (3 min)
Lesson (15 min)
Activity (54 min)
Exit Ticket (3 min) iv) Clear Introduction:
Question of the Day ask students to review Bohr Rutherford diagrams. This prepares the students for the Lewis structures lesson.
Meditation gets students thinking about the molecules they are breathing and allows the students to question the structures of these molecules. o By relating the lesson to an aspect of life, students are more likely to be engaged in the lesson as the topic is less abstract. v) Key Questions and Possible Answers:
How many valence electrons does (element) have? o Possible answers range from 1 to 8. Direct students to periodic table or Bohr
Rutherford diagram.
How many electrons do we need to fill the outer shell? o Possible answers range from 1 to 8. Direct students to periodic table or Bohr
Rutherford diagram.

TC Name: _Kathleen Borges_(996903980)___ Date: _30/01/2012___________
Are the atoms in this compound going to share or transfer electrons? o Ask students to try out their hypothesis to see if it will lead to all atoms with a stable outer shell. Ask students to determine the electronegativity difference between the atoms.
In pairs, determine the lewis structure for O
2
/MgF
2
. o For O
2
:
 May have single bond instead of double bond. Ask students to count the number of electrons in the outer shell of each atom when there is a single bond present.
 Student may have difficulty determining if it will share or transfer electrons. Ask students to try out their hypothesis to see if it will lead to all atoms with a stable outer shell. Ask students to determine the electronegativity difference between the atoms. o For MgF
2
:
 Student may have difficulty arranging the molecule. Ask student to identify central atom. CLUE: The first atom stated is often the central atom.
 Student may have difficulty determining if it will share or transfer electrons. Ask students to try out their hypothesis to see if it will lead to all atoms with a stable outer shell. Ask students to determine the electronegativity difference between the atoms. vi) Concluding idea/ summary of concepts
To build skills in drawing Lewis structures for elements and compounds
To use Lewis structures to illustrate the transferring and sharing of electrons to form bonds. vii) Chalkboard Outline:
Agenda: o Question of the Day o Meditation o Lesson o Activity
Learning Goals: o Draw Lewis structures for elements and compounds
Question of the Day o Draw the Bohr Rutherford diagram of chlorine.
 How many valence electrons does chlorine have?

TC Name: _Kathleen Borges_(996903980)___
Steps: o Element o Valence electrons o Sharing of transferring electrons o Draw Lewis structure
Lewis Structure Examples o H
2 o O
2 o NaCl o MgF
2
Activity Demonstration o ICl
Date: _30/01/2012___________