# Algebra: Themes, Tools, Concepts

by Anita Wah and Henri Picciotto

Down to Sample Lessons

## Sample Lessons

Here are some lessons from ATTC. Some are edited.

Minus
The Three Meanings of Minus
Proportional Relationships
Investigating Rectangle Areas
Constant Speed
Three problems
The McNuggets Problem
Building Block Numbers
Generalizing (solution)
Full lesson plan (with Amanda Cangelosi)
Interpreting Graphs
The Bicycle Trip | Follow-up
In the Lab
Discounts
Weight vs. Age
not from ATTC: Comparing Cell Phone Plans (with Amanda Cangelosi)
Constant Sums, Constant Products
(More on this last topic.)
Equations and Identities
Three Lessons
The Cover-Up Method
Kinds of Numbers
Systems of Linear Equations
Part of Lesson 10.6, as a lesson plan, including video and GeoGebra...
...and as a Desmos Activity (by Chris Bolognese)
Constant Sums, Constant Products
A mega-unit, based on ATTC material
Function Diagrams
Nine Function Diagrams
The Focus
Representing Linear Functions
(More on this subject, including animated diagrams.)
Maximizing Area | (Condensed version)
(Related Lessons.)
Iterating Linear Functions
Notes
Worksheets
(More on this subject.)
Sequences and Series
Arithmetic and Geometric
(Related Lessons)
Probability
An Introduction
Abstract Algebra
Notes
Worksheets
(More on this subject, for teachers.)