## Reflection: Routines and Procedures Modeling Archimedes' Principle - Section 2: Guided Question

Within this lesson, I introduce a routine for solving physics problems called G.I.R.L.S. that helps introduce to the idea that scientists use logic when solving complex problems. I did so because I want students to move away from treating working as though it represents a viable solution. I want students to make connections and use their mathematical reasoning to support their claims, not simply box answers that are numerically accurate.

In my experience, students are more likely to recognize gaps in their judgement when using the G.I.R.L.S. protocol rather than just plugging numbers into an equation. Students have provided feedback that the image and solution steps of the protocol were the most useful to them because the image allowed them to identify what was occurring in the problem and the 1-2 sentence summary in the solution step made it easy for them to check if they actually answered the question or identified the unknown.

Building Students Knowledge Base
Routines and Procedures: Building Students Knowledge Base

# Modeling Archimedes' Principle

Lesson 5 of 12

## Big Idea: Archimedes' principle is a conceptual model of fluid mechanics which connects forces to engineering design.

Print Lesson
5 teachers like this lesson
Standards:
Subject(s):
Science, Physical Science, buoyancy, physics, distance, displacement, Archimedes' Principle
80 minutes

### Tenicka Norwood

##### Similar Lessons

###### Friction Lab, Day 1
High School Physics » Force and Acceleration
Big Idea: Students investigate factors that affect friction on sliding wooden blocks.
Favorites(4)
Resources(17)
Park Ridge, IL
Environment: Suburban

###### Self-Directed Day
High School Physics » Electrostatics
Big Idea: Forces can cancel ; a net force can be zero even if there are multiple forces on an object.
Favorites(0)
Resources(10)
Woodstock, VT
Environment: Rural

###### Springing into Hooke's Law
High School Physics » Simple Harmonic Motion
Big Idea: Today is all about stretching students' knowledge of Hooke's Law by exploring the relationships between forces, mass, and displacement.
Favorites(0)
Resources(16)
Scottsdale, AZ
Environment: Suburban