• A. Mohamed  
    Name:  Abdellatif Mohamed, Ph.D. 
    H.S. Chemistry Teacher
    North High School
    Science Building
    Room S58
    Phone number:  602-764-6788 
    E-mail: mohamed@phoenixunion.org
    Office hours: By appointment-Please call or e-mail me for appointment. 

    Welcome all parents, students, and professionals. I am a highly qualified professional educator. I'm originally form Alexandria Egypt and migrated to the United States in 1980. Over the past 35 years I accumulated extensive experience in teaching, research, law enforcement, and and environmental engineering.  
    Education and Certification:
    BS.C. Alexandria University. 1978.
    Ms.C. Alexandria University. 1982.
    Ph.D.  in Environmental Sciences/Chemistry. University of Arizona. Tucson Arizona. 1987.
    Phyto-sanitary Certification, USDA, 1991.
    Plant Quarantine Certification, AZDA, 1991.
    Pesticide Application Certification, ADEQ, 1997.
    Osha HAZ MAT Certification, OSHA, 2001. 
    Global Positioning Certificate, ADEQ, 2000.
    Maricopa County Community Colleges Teaching Certificate-Chemistry, 2001.
    Arizona Department of Education 9-12 Certified Teacher in Chemistry, Biology, and Earth Science. 
    Outstanding Instructor Certificate, Maricopa County Community Colleges District, 2011.
    Course Description: 
    CHEMISTRY 1-2 and Chemistry 1-2H are two-semester course, grade level 10, 11, 12.
    Students must pass Chemistry 1 with a D or better to advance to Chemistry 2.
    It meets PUHSD and Arizona Science Standards graduation requirement.
    It meets laboratory science admission requirement of Arizona universities.
    Chemistry 1-2 is a laboratory science course designed for students who wish to pursue a more challenging and quantitative approach to chemistry.
    The student will learn about matter, energy and the composition of the universe.
    The major instructional areas are: identifying consistencies in experimental data, structure of matter as a key to chemical and physical properties, mole concept, and energy changes in matter, conservation of energy, equilibrium systems and stoichiometric relationships.
    Laboratory work and the scientific method are emphasized.
    Research papers and individual laboratory research may be required.
    Materials Required: 

    Students are expected to show up prepared and ready to learn every day of class. This includes bringing all materials!  Highly suggested materials for class are as follows, but are not limited to:

    ·3-ring Binder

    Blue or black pen

    Lined paper

    ·Scientific calculator 

    Pencil with eraser

    Dry erase marker

    Grading system:

    Semester Grades (cumulative over the semester)


    Grade Scale



    42.5 %  = Tests and Quizzes (excluding final exam)


    90 – 100 %



    42.5 %  = Homework, Laboratory Experiments, classwork, and other assignments.


    80 – 90%


    Above Average

    15% Midterm, PBA & Final Exam (CRT)


    70 – 80%




    60 – 69%


    Below Average


    Below 60



    You are expected to be in class when the bell rings. Come every day to class, but especially come to EVERY LAB!  Labs are difficult to make-up.  You will have two days to make-up an excused absence for full credit.  If you are Brown-Slipped, you are in attendance at school and your work will be due as if you had been in class that day (you do not get an extra day!), so think ahead and pick it up the day before, before school, after school, or between classes.  Any time you are absent YOU are responsible for getting the work that you missed and making arrangements to come in and make up a missed lab, test or quiz within the allotted time!  No credit will be given for tests/quizzes taken after the next test/quiz, labs turned in after the next lab.

    ·         A student is tardy if he/she enters the classroom after the bell has rung.

    ·         If a student does not fulfill the obligations of the attendance contract, consequences as outlined in the student procedures handbook will result.

    ·         Excessive absences and tardiness could result in the loss of credit (Student procedures Handbook J-1561) and/or a class schedule change may be assigned by administration.

    Late Work: 

    Late homework and late classwork are accepted and will receive three quarters (3/4) credit until the unit test.  WORK LEFT INCOMPLETE OR MISSING after the unit test WILL RECEIVE NO CREDIT. 

    Late labs will also be accepted, but there will be a graduated penalty of 5% for each day they are late (up to 25% off).  No credit will be given for labs turned in after the START of the NEXT lab.

    Extra Credit: 

    Extra credit may be available from time to time, but will be in addition to (not as a replacement for) assigned course work, and will not exceed 2% of the total grade.

    Electronic Devices: 

    Cell phones are not acceptable calculators!  As per district policy, no electronic devices are allowed.  If seen or heard:

    1. 1st offense – warning from teacher/staff member to put item away, reminder of school rules
    2. 2nd offense – warning from teacher/staff member to put item away, reminder of school rules, and device will be confiscated for remainder of period.
    3. 3rd offense – device confiscated, PARENTS/GUARDIAN will be responsible for picking up the device from the dean. Multiple infractions may result in a referral, as per the discipline policy. 


    Chemistry is a demanding course.  Daily, consistent effort is the key to success.  If you encounter difficulties, don’t hesitate to ask for extra help BEFORE it is too late.  I wish you a successful school year!


    • Teaching Philosophy: 

    • Teaching is caring to touch lives for ever.

    • Classroom Policies/Rules:

    *      I am here to teach; you are here to learn. I will do my job; you will do yours, and together we will utilize this year wisely and beneficially.

    *      A positive attitude is the key to success. Let’s keep it all the times.

    *      Class Policies: A policy is a plan that guides our actions:

    To do things effectively, we have to adhere to some common sense policies. So, to be successful in learning, you need to follow some basic classroom rules! I call them my class policies. Following these few basic policies will help keep our class environment peaceful and productive. If you choose not to adhere to the policies, there will be logical consequences.

    1. Be ready (prepared) to learn. –books, planner, notebooks, paper, pen, sharpened pencils, etc.
    2. Always act and speak in an appropriate manner. Raise hand before speaking. Respect the rights, opinions, and property of others. Work without disturbing anyone.
    3. No food, or drink allowed.
    4. No personal electronics allowed.
    5. Listen and follow directions.
    6. Place trash in trash can and recyclables in the appropriate recycling can. 
    7. Remain in your seat until dismissed by your teacher.
    8. 9. Walk to your next class – no running on campus please if not instructed to do so.

    *       Possible Behavioral Consequences:

    1.      Warning

    2.      Conference with student

    3.      Call home and explain to parents

    4.      Make formal parent contact

    5.      After school detention

    6.      Referral to Administration

    *      Class Procedures:

    A procedure is the way that we do things. To do things efficiently, we have to follow some simple procedures. So, to be successful in learning, you need to follow some simple procedures!

    *      Entrance:

    -          Make sure you have all necessary materials for the class.

    -          Enter the classroom quietly.

    -          Pick up any handouts and do any housekeeping items quickly and quietly.

    -          Go directly to your assigned seat.

    -          Get ready for work.

    *      Right After The Bell rings:

    -          Immediately start your entry (bell) task.

    -          When you finish, wait quietly and read in your individual book.

    *      During Instruction:

    -          Face the teacher.

    -          Listen to the teacher/speaker with full attention.

    -          No pencil sharpening, talking, moving about the classroom, or whispering.

    -          Ask permission to speak by raising your hand and waiting quietly to be called on.

    -          After instruction, make sure you understand the concept.

    -          If not, ask questions by mentioning which part you didn’t understand.

    -          No talking or whispering.  All of your attention should be given to the teacher.

    *      When you are absent:

    -          Ask your neighbors what we did.

    -          If you have questions about assignments, check with the teacher at an appropriate time.  Do the work at home.

    -          If you missed a test because of an excused absence, inform the teacher and arrange a time to make up the test after school. You will have one day to make-up work for every day you are absent.

    *      While You Are Working:

    -          Make sure you read or listen to the directions about your work and understand the directions.

    -          If you didn’t understand, quietly ask for help from other students sitting around you.

    -          If you are asked to help, be polite and help.

    -          Talking to each other should be no louder than a whisper.

    -          Respect each other and be friendly.

    -          Use your time wisely.  Put forth your best effort to finish your work on time.

    *      After You are Finished:

    -          Check your work and the directions one more time to see if you missed anything or did something incorrectly.

    -          Check to see if the heading is written correctly on your paper.

    -          If the assignment is to be turned in, do so.

    -          If appropriate, read quietly in your seat.

    *      Maintaining the Classroom:

    -          Pick up any garbage 2mm in diameter or more.

    -          Recycle papers (4x4 inches or more), plastic bags, aluminum cans, and plastic bottles.

    -          Do not intentionally deface school, personal, or other’s personal property.

    *      Dismissal:

    -          Clean your work area and take all garbage to the trash can.

    -          Wait in your seat for the teacher to dismiss you.

    -          Leave quietly, ONLY after you have been given permission to do so.

    *      When You have an Excused Tardy:

    -          Report to attendance office to get tardy slip.

    -          Enter the classroom quietly and go to your seat.

    -          You will not be excused from any work you missed.  Quietly, get the assignment and do the work at home.

    *      Attendance Procedure:

    -          Unexcused absences do not need to go through the attendance office.  Just come straight to class.

    -          If you are 33 minutes (or more) late, you will be marked absent! If this absence will be excused, go to the attendance office to get your excuse note.

    *      When There Is A Substitute:

    -          We treat guests in our room as courteously or better than we our own instructor.

    -          Sit in your assigned seat ONLY.

    -          Maintain proper voice levels.

    -          Remain on task.

    -          Be helpful and courteous.

    Subs will report behaviors (good & bad) and proper consequences will be applied.

    *     Required Materials:

    -         Sprial ring notebook.
    -          Three ring binder with lined loose writing papers.

    -          Calculator.

    -          Pens and pencils.

    * Final Thought:

    “Learning without reasoning leads to confusion; thinking without learning is wasted effort.”  

    • Scope and Sequence:
    • ACT Quality Core Honors Chemistry 1-2 Scope and Sequence

      Quarter 1

      Quarter 2

      Quarter 3

      Quarter 4


      1- Matter

      ·       Law of Conservation of Mass1

      ·       Chemical/Physical changes1

      ·       Chemical/Physical properties2

      ·       Pure substances v. mixtures2

      ·       Separation techniques3

      ·       Particle diagrams for solids, liquids & gases2


      ·       SI Units (& prefixes)2

      ·       Patterns in Data1

      ·       Interpret & Draw Conclusions of/from data2

      ·       Sig Figs3

      ·       Density1


      ·       Kinetic Molecular Theory1

      ·       Gas pressure definition2






      ·       Gas pressure units3

      ·       Gas laws – Qualitative & Quantitative1


      ·       Kinetic Molecular Theory1

      ·       KMT in Phase Change1

      ·       Solve Specific Heat and Phase Change Problems2

      5-Bonding & Nomenclature

      ·       Element Symbols & Names3

      ·       Characteristics of Elements & Compounds2

      ·       Ionic v. Covalent Compounds2

      ·       Ionic v. Covalent Bonds & their properties1

      ·       Chemical Formulas & Names1






      6-Atomic Theory & Periodic Table

      ·       Development of Periodic Table3

      ·       Periodic Properties1

      ·       Periodic Trends1

      ·       Atomic & Mass Numbers and What They Mean about Subatomic Particles2

      ·       Valence Electrons2


      ·     Avogadro’s Number & Definition of Mole1

      ·       Mass/Mole Conversions1

      ·       Mass/Mole/Particle Conversions3

      ·       Percent Composition2

      ·       Empirical Formulas2

      ·       Molecular Formulas2

      8-Chemical Reactions

      ·       Balance Chemical Equations1

      ·       Meaning of Chemical Equation2

      ·       Reaction Types2

      ·       Predict Products of Chemical Reactions3



      ·       Mole & Mass Stoichiometry1

      ·       Limiting Reactant Problems3

      ·       Gas Stoichiometry3


      ·       Definition of Solution, Solute, Solvent2

      ·       Factors that Affect Solubility2

      ·       Molarity & Molarity Problems1

      ·       Solution Stoichiometry2

      ·       Identify Precipitate for Double Replacement Reaction3

      11-Acids and Bases

      ·       Solvent Interactions with Base/Acid2

      ·       pH (no calculations)2

      ·       Strong vs.Weak acids/bases1

      ·       Neutralization Reactions2

      ·       Acid/Base Indicators3

      ·       Titration & Neutralization3



    • Useful links: 
    • chemistrymc.com

    • Clubs sponsored:
              -Home work club meets every Thursday from 3:30-4:30 pm. 
              -Chess Club: Meets a granted for competition.