Lesson Plan
Day: M T W T F Date: 13/2/2015 Time: 2:25 pm Year: 10
Learning Area: Science (Chemistry) Topic: Chemical Bonds
Curriculum content description: (from ACARA)
Atomic Structure and Bonding
Students’ prior knowledge and experience:
(Outline what the students already know about this topic)
Familiar with Periodic Table; Understand electron configuration of atoms; Understand that electron
configuration of noble gases most stable; Understand ionic bonds.
Learning purpose: (May refer to the Elaborations of the curriculum content description here)
To understand covalent bonding.
Learning objectives:
On completion of this lesson, students will be
able to:
(What will students know and be able to do at the completion
of the lesson – specific, concise and attainable objectives)
1. To understand and describe what covalent
bonding is.
2. To be able to represent simple covalently
bonded compounds in electron dot
diagrams.
Evaluation:
(Explain how you will know that lesson objective have been
achieved / monitor student learning)
1. Students able to articulate how covalent
bonds form.
2. Students understand that covalent bonds
form between non-metals.
3. Students able to represent simple
covalently bonded compounds in electron
dot diagrams
Preparation and Resources:
(Detail what resources will be used and what other preparation of the learning environment will be required)
Periodic table (can refer to p17 of text book)
White board and pens
Textbook with examples
Catering for diversity (detail any adjustments considerations for educational/resource adjustments)
Timing: Learning Experiences:
1.
3 min
Introduction:
(How will I engage the learners?)
Gain attention of class, asking for quiet.
Briefly review previous material on bonding by asking questions to engage and to sure understanding necessary
background material:
 What is electron configuration?
 What is a valence electron shell?
 How does an ionic compound form?
Encourage discussion and questioning to remind and reinforce that atoms in compounds prefer to have full outer
electron shells ie to have an electron configuration like a noble gas.
2.
3 min
Sequence of learning experiences: (What will you do to help the students achieve the learning
objectives? What tasks and activities will the students be involved in to help achieve the learning
objectives?)
Give example of hydrogen, which can occur as a gas H2. Ask how can if we explain this bond using the concept
of ionic bonding. Invite students to suggest ideas (students may suggest the sharing electrons). If not, give
example of two friends who want two computer games but have only one and can’t afford to buy another –
looking for the idea of sharing. Return to hydrogen example and demonstrate on board electron dot diagram that
shows two hydrogen atoms sharing outer electrons and form a bond.
This is called covalent bonding – ‘co’ for shared or together and valent referring to outermost electrons in an
atoms electron configuration.
3 min
Load Sunflower software. Present some examples of compounds that are covalently bond and describe how is
occurring to create a covalent bond in each case. Examples include I2, HCl, PCL3.
5 min
Demonstrate how to diagrammatically show covalent bonds by explaining electron dot diagrams for chlorine (Cl 2)
and fluorine (F2) ie simple compounds formed a single element by asking students how to perform each step ie
ask for correct chemical symbol, how many electrons are in the outer shell (referring to periodic table if help
required), determine how many electrons each needs to fill valence shell and finally how to draw bond compound.
2 min
Ask students to look at periodic table on page 17 of their textbook. Ask students which elements think are most
likely to form covalent bonds. If unsure ask them what is similar about the electron configuration of the examples.
If they do determine non-metals ask why these form covalent bonds.
2 min
Demonstrate how to show covalent bonding in water by going through steps with students ie determine correct
chemical symbol, electron configuration in outer shell, determine how many electrons required by each atoms
and determine how to draw the compound.
3.
2 min
Lesson conclusion: (How will you summarise the learning and relate it to the lesson objectives?)
Conclude topic by asking students key points
What sort of electron configuration do stable compounds have? That of noble gas
How is this achieved in covalent bonds? Sharing outer electrons
What sort of elements form covalent bonds? Non-metals
Lesson Evaluation:
(Reflect on the lesson. What worked? What did not work? What would you change? Why?)
Lesson was ok and timing was ok. Despite asking lots of questions the lesson seemed a
bit too teacher focused. Perhaps I could have gotten the students to have a short attempt
at the examples I gave them first and then got them to attempt on the board. Also providing
some real world context with examples or a video or something similar to help the students
understand why this concept is important would help too.