1. Topic-
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LAW OF CONSERVATION OF MASS
and BALANCING EQUATIONS |
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2. Content-
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LAW OF CONSERVATION OF MASS
DEMO - 2 reactions showing the law of conservation of mass. (Accompanying
data recording sheet)
- summary/conclusion note on back of data sheet
BALANCING EQUATIONS
- fill in blank OH note
- Example using copper wire and Styrofoam balls
- Activity - Jelly Bean Equations.
- additional WS if needed.
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3. Goals: Aims/Outcomes-
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1. To understand conserving mass
2. To be able to balance simple chemical equations
3. Cooperative learning |
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4. Objectives-
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C2.1 use appropriate terminology related to chemical reactions,
including, but not limited to: compounds, product, and reactant [C]
C2.2 construct molecular models to illustrate the structure of molecules
in simple chemical reactions
(e.g., C + O2 ➞ CO2; 2H2 + O2 ➞ 2H2O),
and produce diagrams of these models [PR, C]
C2. investigate, through inquiry, the characteristics of chemical
reactions;
C2.4 use an inquiry process to investigate the law of conservation
of mass in a chemical reaction (e.g., compare the values before and
after the reaction), and account for any discrepancies
[PR, AI]
C3.2 explain, using the law of conservation of mass and atomic theory,
the rationale for balancing chemical equations
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5. Materials and Aids-
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1. Overhead Projector
2. Handouts
3. Reaction Grid
4. Jelly Beans
5. Toothpicks
6. Copper wire
7. Styrofoam balls
8. Chemicals for DEMOS
9. Paper Towels
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6. Procedures/Methods-
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A. Introduction-
1.Bellringer (counting atoms)
2.Periodic Table Pun
3.DEMOS (Law of Conservation of Mass |
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B. Development-
1. DEMO
2. Conservation of Mass
3. Balancing Equations |
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C. Practice-
ACTIVITY :Jelly Bean Equations
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D. Independent Practice-
WS- additional Equations if required.
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E. Accommodations (Differentiated Instruction)-
1. Handouts for some notes
2. Overheads (Visual)
3. DEMOS - visual/Inquiry/Kinesthetic
4. Hands on Learning
5. Cooperative Learning...helping each other in small groups |
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F. Checking for understanding-
1. Walk around to assess student learning
2. Examples on blackboard next day
3. Quiz after practicing
4. Unit Test |
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G. Closure-
1. Discuss HWK requirements
2. Hand out Progress Reports |
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7. Evaluation-
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1. Upon assessing progress of students
2. Successful quizzes and unit test |
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