HSA-SSE.A.1

Interpret expressions that represent a quantity in terms of its context.*

 
84 Lesson(s)
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Irrational (and Other!) Numbers on the Number Line

Algebra I » Unit: The Number Line Project
Algebra I » Unit: The Number Line Project
James Dunseith
Worcester, MA
Environment: Urban
 
Big Idea:

In addition to continuing with their work, students learn one of my favorite closing structures: appreciations!

 
Favorites (40)
 
Resources (20)
u1l15 misconception fractions on number line resized
   

Speed Dating Rationally

12th Grade Math » Unit: Rational Functions and Equations
12th Grade Math » Unit: Rational Functions and Equations
Tiffany Dawdy
Phoenix, AZ
Environment: Urban
 
Big Idea:

Efficiency and accuracy improves as students solve rational equations with their ‘date’ in this interactive and self-checking speed dating activity.

 
Favorites (15)
 
Resources (20)
 
Reflections (1)
speed dating
   

The Exercise Plan (Day 1 of 2)

Algebra I » Unit: Extending Equations
Algebra I » Unit: Extending Equations
James Bialasik
Amherst, NY
Environment: Suburban
 
Big Idea:

Use linear models to help Jack make an exercise plan that will help him lose one pound each week.

 
Favorites (12)
 
Resources (12)
modeling w equations
   

Solving Systems by Graphing

Algebra I » Unit: Systems of Equations
Algebra I » Unit: Systems of Equations
James Dunseith
Worcester, MA
Environment: Urban
 
Big Idea:

As students gain confidence in graphing - and interpreting the intersection points on - systems of equations, we continue to see how this skill relates to guess and check.

 
Favorites (6)
 
Resources (21)
 
Reflections (1)
u5 l4 key elements of a graph
   

Selling Cake Pops Day 2 of 5

Algebra II » Unit: Modeling with Expressions and Equations
Algebra II » Unit: Modeling with Expressions and Equations
Amelia Jamison
Caldwell, ID
Environment: Rural
 
Big Idea:

Extend writing expressions into solving equations through modeling a student run business. Linear modeling as entry point to build students' algebra confidence.

 
Favorites (6)
 
Resources (20)
image selling cake pops
   

True & False Equations (Day 1 of 2)

Algebra I » Unit: Understanding Equations
Algebra I » Unit: Understanding Equations
James Bialasik
Amherst, NY
Environment: Suburban
 
Big Idea:

Let's take an in-depth look at what it means for mathematical sentences to be equal.

 
Favorites (10)
 
Resources (24)
 
Reflections (2)
true false equations image
   

The Exercise Plan (Day 2 of 2)

Algebra I » Unit: Extending Equations
Algebra I » Unit: Extending Equations
James Bialasik
Amherst, NY
Environment: Suburban
 
Big Idea:

Continue to refine and improve a model exercise plan that will help Jack lose one pound each week.

 
Favorites (3)
 
Resources (12)
modeling w equations
   

Organizing a List and Guess & Check

Algebra I » Unit: Systems of Equations
Algebra I » Unit: Systems of Equations
James Dunseith
Worcester, MA
Environment: Urban
 
Big Idea:

In order for guessing and checking to be useful and efficient, it’s important to have an idea of how to organize a list of possibilities.

 
Favorites (6)
 
Resources (31)
 
Reflections (1)
u5 l2 projecting sw two kinds
   

Transformation of Polynomial Functions

Algebra II » Unit: Polynomial Functions
Algebra II » Unit: Polynomial Functions
Amelia Jamison
Caldwell, ID
Environment: Rural
 
Big Idea:

Models support conceptual understanding of function transformations. From cube to cubic!

 
Resources (30)
 
Reflections (2)
image transformation of polynomial functions
   
12th Grade Math » Unit: Circles
Hilary Yamtich
Oakland, CA
Environment: Urban
 
Big Idea:

Will the dog be able to reach its bone? Students apply the definition of a circle, along with a method for determining whether or not a point lies on a circle.

 
Favorites (8)
 
Resources (14)
 
Reflections (1)
screenshot 2014 05 13 15 24 12
   

What's In an Intersection?

Algebra I » Unit: Systems of Equations
Algebra I » Unit: Systems of Equations
James Dunseith
Worcester, MA
Environment: Urban
 
Big Idea:

The "closeness" of one graph to another matches the accuracy of a guess and a check.

 
Favorites (2)
 
Resources (16)
 
Reflections (1)
u5 l3 desmos sketch on board first
   

Three Ways to Solve a Problem

Algebra I » Unit: Systems of Equations
Algebra I » Unit: Systems of Equations
James Dunseith
Worcester, MA
Environment: Urban
 
Big Idea:

Over the course of today’s lesson, students will beg for an algebraic solution, understand on their own why it’s great that algebra was invented, and see the beauty of an elegant solution.

 
Favorites (3)
 
Resources (19)
 
Reflections (1)
u5 l9 connect dots and intersection
   

More Absolute Value Graphs

12th Grade Math » Unit: Piecewise Functions
12th Grade Math » Unit: Piecewise Functions
Hilary Yamtich
Oakland, CA
Environment: Urban
 
Big Idea:

Use graphing technology and open-ended problems to explore the graphs of absolute value functions.

 
Resources (11)
 
Reflections (1)
more absolute value image
   

Standard Form of Circle Equations

12th Grade Math » Unit: Circles
12th Grade Math » Unit: Circles
Hilary Yamtich
Oakland, CA
Environment: Urban
 
Big Idea:

How can I tell if this weird-looking equation will make a circle when I graph it? Students discover how to apply previous knowledge about completing the square to a new problem.

 
Resources (13)
 
Reflections (1)
concentric circles
   

Border Tiles: Seeing Structure in Algebraic Expressions

Algebra I » Unit: Multiple Representations: Situations, Tables, Graphs, and Equations
Algebra I » Unit: Multiple Representations: Situations, Tables, Graphs, and Equations
Amanda Hathaway
Boston, MA
Environment: Urban
 
Big Idea:

Don't count! Students find different approaches for counting tiles around a garden and then write rules that represent their methods.

 
Favorites (6)
 
Resources (22)
 
Reflections (3)
garden image

Interpret parts of an expression, such as terms, factors, and coefficients.

Interpret complicated expressions by viewing one or more of their parts as a single entity. For example, interpret P(1+r)n as the product of P and a factor not depending on P.

Common Core Math
 
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