# Shaun Errichiello

152 Lessons
Middle School 255 Salk School Of Science
New York, NY
Student Environment:
Urban
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## 8th Grade Math

(14 Units, 152 Lessons)

#### 1. Developing Right and Straight Angle Intuition

Big Idea: Introduce and explore the connections between supplementary and complementary angles using algebra.
Standards:
Favorites (14)   Resources (14)   Reflections (1)

#### 2. Create Problems with Right and Straight angles

Big Idea: Students complete a mini-project creating problems involving angles for their classmates to solve.
Standards:
Favorites (0)   Resources (10)

#### 3. Why Are Vertical Angles Equal?

Big Idea: Give students a chance to prove that all vertical angles are equal.
Standards:
Favorites (6)   Resources (10)

#### 4. Create Vertical Angle Problems

Big Idea: Give students a chance to create problems around the concept of vertical angles.
Standards:
Favorites (1)   Resources (9)   Reflections (1)

#### 5. Developing Transversal Intuition

Big Idea: Students get a change to make informal arguments about angles and explain why and when angles will be equal when they are cut by a transversal.
Standards:
Favorites (1)   Resources (12)

#### 6. Create Transversal Problems

Big Idea: Students get a chance to create a challenging problem around transversals and revisit linear functions.
Standards:
Favorites (0)   Resources (8)

#### 7. Why Do Triangles Have 180 Degrees?

Big Idea: Students realize that triangles are the basis for defining all angle measure.
Standards:
Favorites (2)   Resources (13)   Reflections (1)

#### 8. Walking Around a Triangle

Big Idea: In this investigation we open with AA criterion for triangles and help students discover that the exterior angles of a triangle (and any polygon) must always add to 360.
Standards:
Favorites (3)   Resources (9)   Reflections (1)

#### 9. Defining Key Angle Relationships

Big Idea: We should let students observe the relationships between different types of angles and develop their intuition.
Standards:
Favorites (15)   Resources (14)   Reflections (1)

#### 10. Triangle Sum Theorem Proof

Big Idea: When given the opportunity to connect their knowledge about lines and angles, students can deduce an important theorem.
Standards:
Favorites (3)   Resources (9)

#### 11. Angles and Algebra

Big Idea: Using algebraic expressions for angles reinforces student understanding of basic algebra tools.
Standards:
Favorites (7)   Resources (10)

#### 12. Super Practice with Angle Values

Big Idea: Students can use targeted practice to identify misconceptions and grow in mathematics.
Standards:
Favorites (3)   Resources (29)

#### 13. Super Practice with Angle Values - Feedback session

Big Idea: Students need directed feedback to help understand the content they are learning in class.
Standards:
Favorites (0)   Resources (12)   Reflections (1)

#### 14. Super Practice with Angles and Algebra

Big Idea: Students can only master a topic if they are given the opportunities needed to practice the topic.
Standards:
Favorites (10)   Resources (33)   Reflections (1)

#### 15. Super Practice with Angles and Algebra - Feedback Session

Big Idea: Students can better understand a topic when they compare strategies and learn from each other's ideas.
Standards:
Favorites (0)   Resources (24)   Reflections (1)

#### 16. My Little Transversal: A multi-day project lesson

Big Idea: Looking for a direct or an abstract connection to a concept can bring math content to life.
Standards:
Favorites (16)   Resources (14)   Reflections (2)