Student Learning Objective (SLO)

High-Risk Issue (Why is it difficult for the students?)

Enhanced Academic Support (activity or way that the SLO is presented?)  Be specific

Evaluation (How will you measure?)  Be Specific

Electronic Structure and Shape

G.2. Draw accurate Lewis Dot structures for compounds and molecular ions.

H.1. Predict the shape of the molecular entity by applying the principles of the VSEPR Theory (Valence Shell Electron Pair Repulsion) Theory

H.2. Use the predicted shape of the entity to determine if it is polar or not.

Lab Objective B.11. Apply the VSEPR Theory to determine the geometry of molecules.

Students have difficulty visualizing molecules in three dimensions as they have always written, drawn, and thought in two dimensions, i.e., sketches on paper.

Student will be assigned worksheets which they will work on collaboratively in the laboratory.  Students will construct ball and stick models using Styrofoam balls and toothpicks to illustrate the shapes.  The instructor will interact with the students individually and collectively in order to insure that the models are correct, as are the determinations of polarity.

Performance will be assessed by scores on the graded worksheets, questions on the Final Exam, and questions on the Post Test.  Each student will complete a Lab Practical with a completed model. (Each question will correlate to one of the SLO in the first column).

Correlation of location in the Periodic Table (PT) and properties.

A.4.a. & b. naming compounds

B.1.& 2. Physical and chemical properties

D.2. & 3. Electron configuration and properties.

G.1. & 5. Chemical Bonding, ionic & covalent, electronegativity

Students have not been taught to make extensive correlations.

The ‘Simple Math Approach’ to the PT has been developed to correlate basic math relationships to the PT.  It teaches students multi-relational skills.

Performance will be assessed by scores on the graded worksheets, questions on the Final Exam, and questions on the Post Test.  In class ‘segments’ are given periodically.  They are short ‘in class exams or problems’ that deal with the topics that have just been discussed.

The Kinetic Molecular Theory

J.1., 2. & 5. Gases

K.1., 2. & 5. Liquids and Solids

Students have not been taught to think in terms of basic ‘system models’

Models of various ionic compounds will be utilized as will the ‘shadow box’ display of the Periodic Table of the Elements as three dimensional teaching tools.

Performance will be assessed by scores on the graded worksheets, questions on the Final Exam, and questions on the Post Test. In class ‘segments’ are given periodically.