Westside High School Lesson Plan
Teacher Name:
Garrett, Shannen
Unit Name and #:
Unit 2:
Unit 3: Triangle Properties
and Congruence
Course:
Geometry MOD B
Dates:
Mar 30 – Apr 3, 2015
What are we learning?
Daily Objective:

Students will be able to find the measurement of a missing angle by using Triangle
Angle Sum Theorem.
TEKS/AP/Standards:
Monday
GEOM.1A Develop an awareness of the structure of a mathematical system, connecting
definitions, postulates, logical reasoning, and theorems to verify statements.
Ⓡ GEOM.3C Use logical reasoning and several methods of proof (flow proofs, transformation
proofs, coordinate proofs, and two-column proofs) to prove statements are true, and find
counter- examples to disprove statements that are false.
Ⓢ GEOM.3E Use deductive reasoning to prove a statement.
How will we learn it?
Learning Activities:
 Triangle Sum Theory Discovery Activity
How will we tell if we’re learning it correctly?
Assessment Methods:
Triangle Sum Theory Discovery Activity
Checks for Understanding:
 Teacher observation
 One-on-one instruction
What do I need to be successful?
Materials: Calculators, worksheet, computer, PowerPoint, notes
What do I need to do before next class?
Follow Up/HW:
What are we learning?
Daily Objective:
 Students will be able to find the measurement of a missing angle by using Exterior
Angle Theorem.
TEKS/AP/Standards:
GEOM.1A Develop an awareness of the structure of a mathematical system, connecting
definitions, postulates, logical reasoning, and theorems to verify statements.
Ⓡ GEOM.3C Use logical reasoning and several methods of proof (flow proofs, transformation
proofs, coordinate proofs, and two-column proofs) to prove statements are true, and find
counter- examples to disprove statements that are false.
How will we learn it?
Tuesday
Learning Activities:

Exterior Angles of A Triangle Inquiry Activity
How will we tell if we’re learning it correctly?
Assessment Methods:
Isosceles Triangle Worksheet
Checks for Understanding:
Teacher observation
Students will share with another person
What do I need to be successful?
Materials: Calculators, worksheet, computer, PowerPoint, notes
What do I need to before next class?
Follow Up/HW:
Exterior Angle Theorem Worksheet
What are we learning?
Daily Objective:
Wed/Thur


The student will be able to understand the concept of congruent figures.
The student will be able to accurately identify the corresponding parts of figures.
TEKS/AP/Standards:
Ⓡ GEOM.2B Make conjectures about angles, lines, polygons, circles, and three-dimensional
figures and determine the validity of the conjectures, choosing from a variety of
approaches such as coordinate, transformational, or axiomatic.
Ⓢ GEOM.3D Use inductive reasoning by collecting information and finding patterns to
formulate conjectures.
Ⓢ GEOM.3E Use deductive reasoning to prove a statement.
Ⓢ GEOM.3E Use deductive reasoning to prove a statement.
How will we learn it?
Learning Activities:


Triangle Congruence Theorems PPT
Congruent Triangles Activity
How will we tell if we’re learning it correctly?
Assessment Methods:
Congruent Triangles Activity
Checks for Understanding:
Teacher observation
Student questioning
What do I need to be successful?
Materials: Calculators, worksheet, computer, PowerPoint, notes
What do I need to before next class?
Follow Up/HW:
What are we learning?
GOOD FRIDAY
How will we learn it?
Friday
GOOD FRIDAY
How will we tell if we’re learning it correctly?
GOOD FRIDAY
What do I need to be successful?
GOOD FRIDAY
What do I need to before next class?
GOOD FRIDAY