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MR
Marcus Reed
High school chemistry and physical science teacher
Columbus, OH9 years teachingIn personAvailable August 2027
9 yearsteaching grades 9 to 12
150students a year in 6 sections
86%passed the reaction rates unit
3courses written and taught
About
I teach chemistry the way it was discovered: lab first, notes second. Students make a prediction, run the test, and only then get the rule. I plan every unit backward from the state standards, check understanding every week, and change the next lesson when the numbers say I should.
Selected work3 projects
Featured case study
A lab-first unit on reaction rates
Ten lessons, five labs, one shared rubric across three teachers.
Students used to memorize the factors that change a reaction rate and forget them by the test. I rebuilt the unit so each factor is a lab students design themselves, with a short written prediction before and a one-paragraph claim after. Two colleagues taught it the next year.
ChemistryLab designBackward planning
86%passed the unit test, up from 64%
Free after-school study lab
Two afternoons a week, run with student tutors.
TutoringStudent leaders
120students came at least once last year
Weekly exit tickets that change the plan
Three questions every Friday; the next lesson starts from the answers.
AssessmentData
+11points on the final exam average in two years
Experience
H
Chemistry and Physical Science Teacher
Harmon Valley High School
Aug 2019 – now
Teach 6 sections of chemistry and physical science; science department lead since 2024.
Aug 2019 – now
E
Science Teacher, grades 9 and 10
Eastbrook Academy
Aug 2017 – Jun 2019
Taught physical science and biology; started the school science fair.
Aug 2017 – Jun 2019
Recommendations
“Mr. Reed runs the most organized lab in the building. Students who were afraid of chemistry ask to stay after class.”
ATAngela Torres, Principal, Harmon Valley High SchoolFormal evaluation · May 2025 · shared with her permission
“I teach his reaction rates unit now. It is the best-planned unit I have ever been handed.”
LMLeah Martin, Science TeacherBy email · Sep 2025 · shared with her permission