# Teacher Sample

### 5th Grade Standard - 5.G.A.1

#### Geometry

#### 5.G.A.1

Use a pair of perpendicular number lines, called axes, to define a coordinate system, with the intersection of the lines (the origin) arranged to coincide with the 0 on each line and a given point in the plane located by using an ordered pair of numbers, called its coordinates. Understand that the first number indicates how far to travel from the origin in the direction of one axis, and the second number indicates how far to travel in the direction of the second axis, with the convention that the names of the two axes and the coordinates correspond (e.g. x-axis and x-coordinate, y-axis and y-coordinate).

# LESSON: AVALANCHE

### Where is the victim in relation to you?

The coordinate plane is the basis for many concepts in future mathematics, such as visualizing equations and scatter plots. During Avalanche Rescue Training, the students are part of the Ski Patrol training for avalanche rescues. The trainers explain the set-up of the coordinate grid as being part of the Beacon system worn by the patrol and used to help guide the avalanche dogs to the victim's location. The data provided is a numberless grid showing the location of the "victim."

# Day 1

#### 1. Immersion

- Play Avalanche Rescue Training Immersion video, whole-class.
- Restate the question:
**Where is the victim in relation to you?** - Facilitate classroom discussion, ask students: "What do we need to know?"

#### 2. Data & Computation

- Print the Data Artifact, and distribute to students.
- Allow students work time. Then ask students "Does your answer make sense?"
- Consider using a sharing protocol to lead to mathematical insights and/or highlight misconceptions.
- Allow students to revise their work.

#### 3. Resolution

- Play Avalanche Rescue Training Resolution video, whole-class.
- Prepare and give brief lecture (Teacher Instruction).

Answer: The victim is located and rescued at the coordinate point (7, 9).

# Day 2

#### 1. Simulation Trainer

- Have students complete Simulation Trainer.

1. Print and distribute the Practice Printable to your students.

2. Have students complete the Practice Printable. Consider using creative protocols.

# Day 3

1. Have students complete the Practice Printable.

2. Have students complete the Student Reflection.

# Day 4

1. Have your students go to midschoolmath.com/clicker.

2. Click on Launch Clicker Quiz and note Clicker Quiz code.

3. Have students enter quiz code on their screens.

4. Launch Clicker Quiz.

5. Review Clicker Quiz results and prompt students to make connections to the the Math Simulator.

# ADD: