Day 14

G: went on a long-winded rant about Law vs. Theory and that slowed things down so much we only got through 3 of the Dalton Postulates....
must speed up tomorrow for the weekend...finish dalton quickly...do the mole and then immediately get to thomson and rutherford...just the facts!!!!
D: got up to law of mult props: make sure that you REVERSE ENGINEER THE EXPLANATION!...DRAW!! a CO2 molecule and a CO molecule and show how the rations must be whole number ratios!!!! due to the fact that atoms combine in whole number ratios!

do not belabor this no matter what though...

E: did more % abundance... definitely show the decimal way tomorrow and then continue with Dem to Dalton...speed up....
AP-explained first three gas laws....get max done before weekend...no test for 10 days due to vacation days....

Draw!

Draw all of Dalton's Postulates...get different sized balls to demo daltons atoms....or isotopes also...

Day 13

A: test day...stoich I exam....last question....put the gram symbol after 2.200
last test: make sure that you have the correct stoich on the question that EG corrected.

D: plans...
got up to % abundance from atomic masses of known isotopes and average atomic mass so now do another example (finish the ex. from yesterday first....
relate weighted averages to bowling scores or even masses of lacrosse balls and other rubber balls (if need be)

moving on...
explain that a given atom of a specific isotope has a given mass but that the atomic mass of an element means the mass of an "average" atom.
DRAW THIS!

Do Atomic Theory and the evolution of the atomic model:

democritus -sand "atomos"
lavoisier
priestley
Dalton's Postulates: Law of Constant Composition/Definite Proportion
Law of Multiple Proportions...

D: actual ...finished % abundance problem and then did one more to drive the point home....
then started atomic theory... got through 3 of 4 Dalton Postulates

E: finished chart of isotopes and ion of isotopes...
began weighted average atomic mass.....did one example with C12, 13, and 14
almost finished Si example.....

G:actual ...finished % abundance problem and then did one more to drive the point home....then barely started atomic theory with democritus

Day 12

A: did reverse engineer gravimetric analysis problem

and then limiting reactant with molarity...into ideal gas law calculation

forgot to do adding excess acid with a back titration...put that on the NEXT test as well as an empirical formula problem with 4 or more elements....

started Boyle's Law....do NOT belabor the laws...just ask for explanation according to kinetic molecular theory!

D: plan to do atomic mass calculations and then to start atomic theory:

democritus...dalton...thomson....rutherford...

actually did atomic mass from % abundance for two and three isotope examples... Cl and Si
did reverse for a two isotope example for P

for G, actually find and use real examples from webelements!

E: did atomic number, mass number, model of an atom and its isotopes, cation, anion, notation and charts.

did #p - #e = charge on ion

Day 11

Starter with zero period for two ...
G Honors: reviewed atomic number and mass number
defined isotope (repeat tomorrow)
atom, cation, anion
relative masses of subatomic particles with symbols
two charts of protons, neutrons, and electrons for isotopes of atoms and ions

just began atomic mass...do several calculation problems tomorrow and then do atomic theory.

D: got through same as G; do weighted average problem tomorrow for starters.

E: read the riot act , calmly, to Regents....gave them some hope for recovery and recommended extra help.

A: plan
1. consecutive reaction
2. mixture problem via weighted average
3. combustion analysis w/empirical formula chart of .2, .25, .33 , .4, .5, .60 .67, .75, .8
4. reverse engineer gravimetric analysis
5. limiting reactant

okay, got up to the end of combustion analysis C8H8O3

tomorrow, reverse engineer, LR, vol analysis precipitatation to molarity and then start gases...

Tests and recap

make corrections to text hw and ws answers!!!

NYFS!: you're going to have to demo a few more things:
Tyndall of solution vs. hetero mix
Filtration setup and distillation setup.
Honors: give the whole 40 or at least 35 next time... but get to the atom the day before....

Reg avg of ME test: 67.
make corrections to the noted questions

Must force ex. help earlier and warn.
No makeups, no quarter bonus, nothing.

Monday AP: time to talk about effort required and grades from last year.
finish unit with a quick consecutive reaction into combustion analysis into volumetric analysis into limiting reactant...make sure that the comb analysis yields a crazy decimal ration C 2.33 H 4 0 would become C 7 H12 O3 !!!

Day 10

AP: finished mixture problem and then another with more difficult stoichiometry
DIDN'T do alternative mixture method of assuming 100% of each component and then doing a weighted average.

launched into consecutive reactions...and finished one problem.

Monday, do another consec and then do the weighted avg. mix problem. Then do an unknown nitrate into an unknown sulfide WHILE SHOWING THE UNKNOWN and then backtracking! Reverse engineering is awesome.

Day 9

G in 116 (no extension, no ppt, no video...) did catchup demos of endo and exo
showed energy curves and did activation energy....
HADN'T EVEN DONE HETEROGENEOUS MIXTURES!
did that and then did boxes of mixture vs. compound.
solution = homogeneous mixture Tyndall test.

D;finished up energy unit
E: as well and then did some review in the workbook...

unit errors: didn't draw energy arrows in phase change (s) --> (aq) pictures...would have been clearer....forgot to put up endo/exo worksheets....!
just stick to JD's notes...copy and scan and that's it!
didn't focus on alloys/solid solutions....

AP: did stoichiometry (power of the mole) gravimetric analysis to determine unknowns...hesitated and messed up units on the unknowns' molar mass...then corrected in class...should post a few more examples with correct units!
then started first mixture problem! show alternate way also...

Day 8

forgot about extra help AM...nobody noticed....

AP: finished molarity and dilutions; started solution stoichiometry with redox titration analysis of H2O2 via permanagate...discussed color...
went onto gravimetric analysis....tomorrow, more grav and vol analysis and a mixture problem...

D: finished energy part of matter and energy after giving more time for Bunsen burner lab.
MUST TALK ABOUT MIXTURE vs. COMPOUND vs. ELEMENT diagrams tomorrow!!! also review 4 signs of chemical change!!!! then test prep. and begin ATOMS!

E: got through endo and exo....do same as D tomorrow plus serious test prep!
did burner lab....

G: seriously BEHIND! I thought that they were into energy already but they hadn't even done chromatography! SHOW MANY VIDS TOMORROW: CHROMATOGRAPHY, do exo vs. endo demos, diagrams etc. catch up! review then test prep!

Day 7

AP exam grading:

common errors- combustion analysis and limiting reactant fiasco...clearly they didn't do enough of them...summer assignment grade will reflect that.
nobody can convert km^3 to cm^3
no such thing as silver I
incomplete rutherford explanation
some even had a problem with %comp to emp. formula.
general carelessness in not reading questions and not answering what was asked for.


D: did I2 sublime demo, showed decomp of sugar via H2SO4; did exo and endo demos with amm nitrate and Ba hydrox in a 1:2 ratio...and then did lab... Bunsen burner stuff only for 5 minutes...give some time tomorrow...

G: got up to chromatography
E: got through chromatography; do energy with D and E tomorrow (plus demos).

AP: did redox balancing and tips....disproportionation and comproportionation....
juuuust started molarity.....
tomorrow, finish grading tests....talk to AH about switching...
then do solution stoichiometry...grav. analysis and then a mixture problem...

Day 6

AP Exam- forgot to bring in reference tables! DM obviously studied from past exam and asked questions from it before the test.
Question 2 ERROR! Do NOT scribble answers...write out a proper key!!!
should have read that the hydrate was heated to a constant mass of 3.608 g NOT 1.373 g !!!

Honors Outline:
Physical Change names:
freezing-melting...etc.
dissolving...show video

Separation Techniques:
Element vs. Compound...chemical means
show electrolysis of water

Homogeneous vs. Heterogeneous Mixtures:
4 ways
+ Basis/ Situation for technique

Got up to chromatography with D and filtration with E.
Need to show coldfinger setup and sublimation of Iodine tomorrow!


Law of Conservation of Mass + Energy
exothermic vs. endothermic
Energy Changes that accompany physical changes
Energy Changes that accompany chemical changes

Day 5

A: finished lim reactant problem - had to stress the meaning of the stoichiometric coefficients and what ratios to use for the 3 methods of LR determination.
Finished reaction types and did redox balancing for acidic conditions (and basic but didn't do a formal basic example from scratch).
Test Monday.

D: got through phys and chem props and evidence of chem change
MUST GO OVER EVIDENCE OF PHYS CHANGE VS CHEM CHANGE and PHASES of matter

WITH EXAMPLES---stick with PLANNED DEMOS drawings and movies ....have them ready to go at the BEGINNING!!!!
got through matter flow chart (element/compound/homo/hetero)


E: same as D
G: same but, on MONDAY, explain the formula difference between element and compound as
element = one SYMBOL!!!! (not letter), compound = two or more SYMBOLS with definite subscripts.

Day 4

G: played with Bunsen burners for 20 minutes and discussed what went on.
got into physical vs. chemical properties...

next year, do NOT teach from the ppts., just give notes from JD's notes and supplement with pictures...

one day behind already... coming up ...don't forget CK video
buy lighters

assign workbook hw for Regents...
D Period did luminol demo and precipitate formation as well as NaCl video/ K + Na video

E: boring R class of physical and chem change and props

tomorrow review evidence of physical vs. chemical change (precip/gas formation... change in props), phases of matter, all classifications of matter ...and then separation techniques....
finally, do endo and exo for physical and chem. changes.

A: finished types of reactions and started lim reactant %yield problem...tomorrow finish that with the three techniques of getting the lim reactant/ amount of reactant remaining.

then do redox balancing....

Day 3

A: FIRE DRILL! the obstacles will never stop.
got through hydrated salt example...LiBr 2H20...showed how a combustion analyzer works...started molecular/ionic/net ionic equation probs into gas forming reaction

D: started the course with matter and energy....up to physical vs. chemical property...
E: same as D....

G/H: Lab Day...finished course intro and started matter and energy up to intensive/extensive....didn't do lab or safety but started bunsen demo...will have them do some tomorrow for 10-15 minutes...

Day 2

G: went over "how to succeed" and they filled out the index cards.
Gave element quiz, 10 elements/names for 20 points but I first warned about academic integrity.

D: same as G
E: will do lab safety next day 1. Started course overview ppt and will begin matter and energy ppt tomorrow.
HW: get emails from all students.
A: finished solubility rules and did one combustion analysis problem (should have had slide of this ready). show this again first thing with explanation.

tomorrow, do a hydrated salt emp. form problem.
put up ultimate flyers today...not really ready for that though...

Day 1

09/11 - no mention in AP...should have
did solubility demo of silver nitrate solution vs tap water adding table salt (broke test tube-haha)
started to talk about requirements but missed a few points:
don't fall behind...use maguire's letter...always keep me in the loop...talk about how unique the seniors must be to succeed in this college course (not "like" a college course)

lesson: started with solubility rules as they relate to Coulomb's Law
showed video of dissolving and then did Q and A to elicit ionic bond strength relative to likely solubility
did group I, ammonium, nitrate, acetate (ethanoate),
insoluble: phosphate, carbonate (do sulfide next)

HW: Ch. 4.1 and questions 21-24

D Honors: handed out course reqs and just got through some of them; didn't get to "how to succeed";
E/F: Regents - mostly sophs - good. didn't get to lab safety today...just did intro materials and "how to succeed"
G: just got to handing out reqs; didn't even hand out index cards

tomorrow: all classes must send email...make sure that email isn't blocked...to be put in group
finish how to succeed in Honors and then begin matter and energy and then give quiz
Regents: begin course- matter and energy notes- POST
and give chapter 2 readings....
AP- do one comb. analysis and whatever after finishing sol. rules WITH DRAWING OF BEAKER etc.

back to work!

teacher orientation today with lengthy m (to be avoided next year!) and a nice recognition at the meeting. Formal-wear is NOT necessary but it's not that bad either.
Got my day 1 papers in for printing, lab safety video ordered in library.
Day 1 sheets should be updated to include lab manual softcover book.

Should have left at 7:45AM; have to be in @ 7:55 rest o' week but 7:25 of Frosh Fri!