POWER POINT: THERMOCHEMISTRY (1st 15 SLIDES)

Students:

Here are the first 15 Power Point slides from Mr. Hatfield's Thermochemistry Notes.   Use these to 'catch up' on completing the first two pages of the Study Guide on Thermochemistry.  Click HERE or on the image to download these slides.

WELCOME BACK! MOVING FORWARD . . .

Students:  Welcome back from Winter Break!   

Of course, it would have  been better if you had received this message on the first day of instruction.  I will be discussing the professional and personal circumstances that have kept me from being with you for the last two months, and reflecting on what would be the best way to support you for the rest of the year.  In the meantime, since we haven't connected until now, I hope you had an opportunity to "recharge your batteries", and reconnect with family and friends during the Break.

Now, coming back to school, we have yet another outbreak in our community to deal with as well, on top of the disruption to our class.  I know it hasn't been easy.

But, as the saying goes, the future is where we are going to spend the rest of our lives, and to know how to deal with the future, we will need to assess what students have learned in Chemistry in the last two months.

WEEK 20 AT A GLANCE

 

VIDEO: EQUILIBRIUM CONSTANTS

In this VIDEO, Mr. Hatfield uses the whiteboard to demonstrate how to calculate the equilibrium constants for strong and weak acids, and also how to rearrange the equilibrium setups to solve for the concentration of products or the original acid's concentration.

WEEK 18 AT A GLANCE

 

VIDEO: ACID-BASE EQUILIBRIUM

This VIDEO contains useful demonstration of titration, the subject of our next set of Lab Activities, as well as models how to evaluate an equilibrium setup of a chemical system involving acids and bases.

VIDEO: NOTES ON ACIDS, BASES AND SALTS

This VIDEO contains Mr. Hatfield's notes on the current unit, based on Sections 15.1 and 15.2 of your text.  

Topics include:  water's polarity, hydrogen bonding, the dissociation of water, properties of acids and bases, indicators and titrations, the pH scale, acid-base definitions, salts and buffer solutions.

VIDEO: NORA FLANAGAN

Nora Flanagan is a sophomore English teacher in the Chicago public schools system.  In this 'TED Talk' delivered last summer at Wrigley Field during that phase of the global pandemic, she identifies some ongoing problems with the public schools there were present before the pandemic.   

Much of what Ms. Flanagan describes are also challenges for Fresno public schools, and so her talk is highly-relevant to what we have experienced and continue to experience as teachers, students or parents in the midst of a global pandemic.   

She makes four specific recommendations: "We can and we must engage parents, demand equity, support the whole student and rethink assessment."

 

The full text of Ms. Flanagan's remarks are available on-line, HERE.   As your instructor, I want to encourage all of my students to reflect on her remarks, particularly her comments on how we support the whole student, and whether we consider the student's voice: 

"IF WE ARE HAVING CONVERSATIONS ABOUT ANY OF THIS, AND NOT AUTHENTICALLY INCLUDING AND EMPOWERING STUDENTS EVERY STEP OF THE WAY, WE'RE NOT HAVING CONVERSATIONS ABOUT ANY OF THIS." 

WEEK 17 AT A GLANCE

 

VIDEO: ACID BASE INDICATOR DEMONSTRATION

In this VIDEO, Mr. Hatfield demonstrates the use of 'universal indicator solution' , as a means of comparison with the pH indicator strips used in the "pH of Solutions Lab" performed in class between May 5-12.

Unlike the lab, where we simply estimate pH from color changes, in this demonstration Mr. Hatfield goes back and forth, first adding positive charge (an acid), then negative charge (a base).

This is essentially a series of neutralization reactions swinging back and forth around pH 7 (neutral), and similar in concept to the titrations that will be the subject of our next set of Lab Activities.

WEEK 16 AT A GLANCE

 

VIDEO: HEAT OF SOLUTION LAB (ANALYSIS)

In a previous lab, Mr. Hatfield walked students through the steps needed to collect data in the 'Heat of Solution' Lab. 

In this VIDEO, Mr. Hatfield explains how students will analyze the data from this Lab for two reactions, one exothermic and the other endothermic.

Mr. Hatfield will demonstrate how to use the data from "Trial #2" shown on the whiteboard in class.

Students will then use Q =mCdT to find the energies (q) for both reactions in Joules, then discuss how those energies can be used to find the enthalpy of reaction, where dH (delta H) = -(q) / mol

WEEK 15 AT A GLANCE

 

VIDEO: TUTORING SUPPORT AT BULLARD HIGH SCHOOL

In this VIDEO, Bullard High staff shares how students can access different kinds of tutoring support during the spring 2021 semester:

VIDEO: HEAT OF SOLUTION LAB

In this VIDEO, Mr. Hatfield walks students through the protocols and procedures of the 'Heat of Solutions' lab, which uses calorimetry to measure temperature changes ('delta T') in water based on chemical reactions involving sodium hydroxide or ammonium chloride:

WEEK 14 AT A GLANCE

Students:  here is your 'Week At A Glance' for Week 14 of instruction in our Chemistry classes. 

 

I also want to say that, due to the unexpected and difficult-to-anticipate demands of 'Simultaneous Instruction', be advised this is a VERY general plan.  

When attempting to do a Lab in the physical classroom, there is a very different experience for in-person learners vs. distance learners, but we want to make sure we are working to promote EQUITY.  

So, to make sure that all students have an opportunity to take part in an actual lab experience, we may have to either make opportunities available during Student Support, or shuffle the times required in scheduled class periods.  This is my pledge to all of you.

WEEK 13 AT A GLANCE

Students:  here is your 'Week At A Glance' for Week 13 of instruction in our Chemistry classes. 

 

I also want to say that, due to the unexpected and difficult-to-anticipate demands of 'Simultaneous Instruction', be advised this is a VERY general plan, and we may need to make serious tweaks to the plan as we go along in order to provide equitable opportunities for all learners.

REVISED BULLARD SCHEDULES: 'SIMULTANEOUS LEARNING'

I'm providing some illustrations here to assist students as we make the transition to 'Simultaneous Learning', where some cohorts of students (A, B)  will spend some days as distance learners and other days as in-person learners, while other cohorts are either full-time distance learners (C) or full-time in-person learners (D).

This week, freshman and seniors will make that transition.  Next week, sophomores and juniors will be found in all cohorts, as well. The first graphic makes the differences between Week 13 and Week 14 of the spring semester clear:

Here is Bullard's Schedule with these cohorts for the rest of the spring semester:

WEEK 12 AT A GLANCE

 STUDENTS:  Here is our latest 'Week At A Glance" for Chemistry.   

STUDENT SUPPORT AND TUTORING

STUDENTS: Mr. Hatfield will continue to offer STUDENT SUPPORT at 2:15-3:15 throughout the rest of the semester.  You may attend that everyday it's offered if you like.   

This week, STUDENT SUPPORT is available every day EXCEPT Thursday.   SATURDAY SCHOOL, which was offered on April 10 and 17, will not be offered again this semester.

You can also take advantage of ongoing tutoring offered at Bullard for all subjects for the rest of the semester through Zoom, by clicking HERE.   Here is the schedule of offerings at Bullard: