Thursday, January 22, 2009

Finishing Reactions, Going into Stiochiometry

MT: Goal predict precipation products. Write total ionic, net ionic reactions.
1.) Students conduct 20 precipitate reactions and record observations.
2.) Students write net ionic equations and spectator ions of 20 reactions.
3.) Test concepts for test time: Classifying, balancing, and predicting products of reactions.

WR:
Goal: Students set up stoichiometry calculations.
1.) Mole Quiz
2.) Reactions Test.
3.) Stoichiometry Gizmo--> Convert to moles first then use ratio to go to the product. (Using front and back worksheet)

FM:
Goal: Students apply the concept of limiting reagent to stoichiometry problems.
1.) Mole Quiz
2.) Paper Clip Mini Lab-Showing limiting reactants.
3.) Vinegar-Baking Soda Demo of limiting reactants.
4.) Explorelearning gizmo showing molecular representation of limiting reactants.
5.) Work stoichiometry problems, using gizmo sheets from last class. (11-20 in Chap.12)

TW: Goal: Introduce Percent yield. Students make stiochiometry calculations. Going around the room solving problems.

RF: Goal: Stiochiometry Test. Determining amount of products, limiting reactants. After Test:
1.) Phase Changes Gizmo: Determine how the various factors impact the amount of water in the liquid state. Temperature, Altitude, Ice Volume. What is the quickest way to boil all water starting at 0 celsius? What is the quickest way to freeze all of the water starting at 0 celsius.

MT: Students apply stoichiometry problem solving to gas project.
1.) Complete wksht. where students calculate amount of Carbon Dioxide released by cars.

Friday, January 16, 2009

Combustion, Reactions, Starting Stoichiometry

M: Goal: Students start combustion of fossil fuels project by analyzing the materials in gasoline.
Homework get new mileage from families cars.
1.) Quiz: Given reactants and products, students balance and classify chemical reactions.
2.) Lecture: Combustion energy diagrams. Exothermic vs. Endothermic. Combustion reactants and products.
3.) Reading how gasoline works. Start reading article in class-finish at home (with 30 minutes left in class)
4.) Complete what's in gasoline sheet.
5.) Homework: Record your family's mileage on the car. (exactly one week later)
http://upload.wikimedia.org/wikipedia/commons/thumb/9/91/Ac_com.svg/300px-Ac_com.svg.png

TW: Goal: Students will be able to predict products from reactants.
1.) Mole Quiz
2.) Students practice breaking apart ionic compounds into their cations and anions while also determining their charges. Coach Model Fade (with in class overhead examples)
3.) Students practice predicting products based on reactants. Coach Model Fade (with going around the room). Quiz--> Predicting Products next class.

RF: Goal: Students will be able to predict products of precipitate reactions (using net ionic equations).
LAB?
1.) Predicting Products quiz. Three reactions.
2.) LAB with precipitate reactions? Examine precipitate videos. Go from video to equations.

MT: Goal: Students make calculations about the amount of gasoline and oxygen used. Determine energy, carbon dioxide, water produced by their cars.
Mole Quiz
1.) Find the total number of miles driven.
2.) Find the number of gallons used. How much CO2 was produced? How much plant matter was once living? How many calories were released?
3.) Students complete a wkst. where they determine the impacts of driving on the environment and their wallet.
4.) Done? Compile a list of greenhouse gases, things we know and want to know about global warming?

WR: Reactions Test, compile combustion statistics in graphs.

FM: Coach Model Fade stoichiometry problems, stoichiometry gizmo.