Students will learn about pH, pOH, Ka, Kb, and Kw through a combination of lecture, video, group work, and practice problems. There are 21 students in the class from a variety of backgrounds but most with a previous chemistry course. Objectives are for students to describe pH and pOH, prove relationships among the equilibrium constants, and solve related problems with 80% accuracy. Methods include lecture, discussion, video, individual and group practice problems, and using an online pinboard to find real-world examples of acids and bases. Students will be evaluated based on their practice work and discussion participation.

1. TUESDAY
Analyze Learners
There are 21 students in the class, all of which are either 11th
or 12th
graders. They all come from homes
in the lower or middle classes. Most were born and raised in the Appalachian culture, although I have
one foreign exchange student from Germany. All have had a previous introductory level chemistry
course. Most are hands-on learners, although a few prefer to learn and prove through mathematics as
much as they can. They understand and apply concepts well through student-led practice.
State Objectives
Students will describe pH and pOH in their own words. Students will prove the relationships among Ka,
Kb, and Kw. Students will solve problems involving pH, pOH, Ka, Kb, Kw, pKa, and pKb by viewing a
lecture, watching a video, working in groups, and utilizing basic algebra skills with 80% accuracy by the
end of the day.
Select Methods, Media, and Materials
The teacher will lecture about pH and pOH. Students will describe pH and pOH by answering discussion
questions, led by the teacher. Students will relate Ka, Kb, and Kw using their knowledge of algebra and
dissociation of acids/bases. Students will watch a video of the proof they were supposed to have just
solved. Students will then solve calculations first individually then in groups. For the last few minutes,
students will search the class pinterest and pin interesting things they can find about acids and bases in
real life.
Utilize Media and Materials
Youtube video; whiteboard; pinterest
Require Learner Participation
Students will discuss for the describing part of the lesson. Students will watch a video. Students will do
their own practice problems to fully learn the methods of solving for equilibrium constants and/or
concentration.
Evaluate
Students will be assessed by how well they do on their practice work. They will also be informally
assessed by their participation and validity in their discussion responses.