Empty Layer.

Empty Layer.

Empty Layer.

Empty Layer.

Empty Layer.

Empty Layer.

Empty Layer.

Empty Layer.

Empty Layer.

Empty Layer.

12th Grade Math

(8 Units, 77 Lessons)

Algebra I

(11 Units, 154 Lessons)

Unit 9 - Systems of Equations(20 Lessons)

Solving Problems in Two or More Unknowns

Algebra I

» Unit:

Systems of Equations

Big Idea:The reason systems of equations exist as an algebra topic is that they're a tool to be used when a problem has more than one unknown variable.

21 Resources

12 Favorites

21 Resources

12 Favorites

Organizing a List and Guess & Check

Algebra I

» Unit:

Systems of Equations

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.

31 Resources

7 Favorites

31 Resources

7 Favorites

What's In an Intersection?

Algebra I

» Unit:

Systems of Equations

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

16 Resources

2 Favorites

16 Resources

2 Favorites

Solving Systems by Graphing

Algebra I

» Unit:

Systems of Equations

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.

21 Resources

10 Favorites

21 Resources

10 Favorites

Mastery Session: MP1, 5.1, and 5.2

Algebra I

» Unit:

Systems of Equations

Big Idea:When students are given time to work at their own pace, without the pressure of a "quiz," they can make the most of an opportunity to show what they can do.

11 Resources

3 Favorites

11 Resources

3 Favorites

From Guess and Check to Graphing Systems

Algebra I

» Unit:

Systems of Equations

Big Idea:Student work from the previous lesson informs my approach with each student.

17 Resources

5 Favorites

17 Resources

5 Favorites

Graphing Lines and Getting Stuff Done

Algebra I

» Unit:

Systems of Equations

Big Idea:A little over a week into a systems unit, it's important to take a little time to meet kids where they are and assess where they're at. Today's work will serve as a springboard to the next few days.

13 Resources

2 Favorites

13 Resources

2 Favorites

Linear Equation Drills (Computer Lab)

Algebra I

» Unit:

Systems of Equations

Big Idea:Today’s practice session is high-spirited and fun as students have an opportunity to demonstrate mastery of learning targets from earlier in the year.

18 Resources

5 Favorites

18 Resources

5 Favorites

Three Ways to Solve a Problem

Algebra I

» Unit:

Systems of Equations

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.

19 Resources

3 Favorites

19 Resources

3 Favorites

From Graphing to Substitution

Algebra I

» Unit:

Systems of Equations

Big Idea:It’s amazing to get to the point where students truly understand how useful and beautiful algebra can be. Transitioning from graphing systems to solving by substitution is an opportunity to get kids there.

13 Resources

2 Favorites

13 Resources

2 Favorites

REALLY BIG IDEAS! Graphing vs. Substitution

Algebra I

» Unit:

Systems of Equations

Big Idea:If you’re going to have a variety a tools, it’s a good idea to have a good idea of what each is good for!

19 Resources

4 Favorites

19 Resources

4 Favorites

An Intersection Point, and What Happens Around It

Algebra I

» Unit:

Systems of Equations

Big Idea:Often the truest solution to a problem is that "it depends". Substitution is an efficient method for finding the precise intersection of two lines; a graph makes it clear what happens on either side of that point.

14 Resources

3 Favorites

14 Resources

3 Favorites

Algebraic Nuts and Bolts: Solving Systems

Algebra I

» Unit:

Systems of Equations

Big Idea:It's a pretty straightforward practice session, of the sort that kids actually look forward to after days of problem solving.

12 Resources

3 Favorites

12 Resources

3 Favorites

The Most Important Algebraic Idea of the Year

Algebra I

» Unit:

Systems of Equations

Big Idea:At the center of algebra is the idea that if this is the same thing as that, then we can replace that with this, and use the results to solve a problem.

17 Resources

4 Favorites

17 Resources

4 Favorites

How Far Can Substitution Take You?

Algebra I

» Unit:

Systems of Equations

Big Idea:We'll practice the use of substitution while learning that attention to detail is paramount. Then students will see a problem that's just not so easy to solve by substitution...

16 Resources

5 Favorites

16 Resources

5 Favorites

Sweet Problems with Two Variables

Algebra I

» Unit:

Systems of Equations

Big Idea:When we're working on "classic elimination problems" it's important to recognize whether we're looking for an unknown cost or an unknown quantity.

15 Resources

5 Favorites

15 Resources

5 Favorites

Many Lines Through One Point

Algebra I

» Unit:

Systems of Equations

Big Idea:"This may be a new idea to you, but you're allowed to add entire equations together!"

20 Resources

2 Favorites

20 Resources

2 Favorites

Solving Systems by Elimination

Algebra I

» Unit:

Systems of Equations

Big Idea:The purpose of yesterday's lesson was to build appreciation for the idea behind elimination. Now it's time to apply that idea and solve some systems!

13 Resources

2 Favorites

13 Resources

2 Favorites

Three Days of Review, Problem Solving, and Achieving Mastery

Algebra I

» Unit:

Systems of Equations

Big Idea:Time is structured to encourage student autonomy and decision-making, and it's outstanding to watch students rise to the challenge.

34 Resources

2 Favorites

34 Resources

2 Favorites

Unit 5: Systems of Equations, Two Day Exam

Algebra I

» Unit:

Systems of Equations

Big Idea:Open-ended problem solving comes BEFORE multiple-choice! (Because, what's more important?)

9 Resources

2 Favorites

9 Resources

2 Favorites