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Algebra 2H 4.09 Matrix Algebra Day 1 Spring 2017 (Editable)
This worksheet is designed to help students with the topic of matrix algebra, including an algorithm for multiplying matrices visually, the identity matrix, and how we use the concept of an inverse matrix instead of "division" of matrices.
I start out class with several examples of what today's lesson will be about. Once we finish doing the notes together, I have them get to work within their groups on this worksheet.
I use this activity within cooperative groups, and I circulate to make sure
9th - 12th
Algebra, Algebra 2, Math
Cosmo's Minus Method (Poster / Handout)
Cosmo's Minus Method is an adaptation of Cramer's Rule I made for my Algebra 2 class. I wanted them to have this algorithm as an alternative to substitution or elimination to solve moderately difficult systems of 2 linear equations in standard form. I chose not to call it Cramer's Rule because a quick google search would reveal how to use Cramer's Rule with the available TI-84 Graphing Calculators. Also, the title of the algorithm "Cosmo's Minus Method" comes from the name of the crazy neighbor
7th - 11th
Algebra, Algebra 2, Math
Factoring Lesson 4: Factoring trinomials when a = 1 (AC Method)
Factoring trinomials whose leading coefficient (a) is 1. Notes included.
I do not teach the "guess and check" method of factoring; students struggle with it because there is no process. The "AC method" uses a process/algorithm to easily factor a trinomial; it relies on the concept of factoring by grouping.
1. Multiply a and c
2. Find factors of "ac" that add up to "b"
3. Rewrite "bx" using the factors you found
4. Factor by grouping
Because of this method, the only "new" thing between thi
8th - 11th
Algebra, Algebra 2
Lesson 11: Rationalizing the Irrational
Students use the concept of a perfect square to compute the square root of a number that is a non-perfect square. They use this to develop the concept of an irrational number. They then reflect upon their process to develop an algorithm to more precisely estimate square roots.
9th - 12th, Higher Education
Algebra, Algebra 2, Math
CCSS
HSN-Q.A.2
, HSN-Q.A.3
, MP2
 +3
Ciphers and Codebreaking (mini booklet)
Originally written for Algebra 2 students as a fun end-of-year after-testing activity. It's a lighthearted take on the subject but includes some more serious math. This is a 58-page mini-textbook that covers some basic elements of classical cryptography, including Caesar, vigenere, affine, and keyword ciphers, among others. It discusses modular arithmetic, solving algebraic equations with modular arithmetic, and some basic work with prime numbers (coprimes, Ulam's spiral, Mersenne Primes). The
9th - 12th
Algebra 2, Applied Math, Other (Math)
Introduction to Polynomials Functions Lab (PBL PrBL Activity)
This lab is meant to launch your Polynomials unit in an Algebra 2 class or an Honors Algebra 1 class. This is a perfect addition to any PrBL/PBL run class. Before teaching students anything, let them explore an application for a polynomial (cubic) function and derive a function themselves. The pre-lab directs students to build an open-face-box out of a single piece of paper with the largest volume possible in any way they choose (do not give them any further directions!). At the end of the pre
9th - 11th
Algebra, Algebra 2, Applied Math
CCSS
7.G.B.6
, HSF-IF.A.2
, HSF-IF.B.4
 +6
Also included in:Â Polynomial Functions Resource Bundle (PrBL PBL Unit)
Solving 5 different types of equations practice
A great study tool to help students see the different type of equations they will need to know how to solve in the beginning of Algebra 1.
1) one step equations: multiply by the reciprocal or divide (5 problems)
2) one step equations: add or subtract (5 problems)
3) two step equations: add or subtract first then multiply by the reciprocal or divide (10 problems)
Multi-Step equations:
4) distributing (5 problems) combine like terms (5 problems)
5) variables on both sides (6 problems)
I found
7th - 10th
Algebra, Algebra 2, Math
Linear Functions Graphic Organizer and Note Guide
In this organizer, multiple representations of linear functions are displayed in a succinct and connected way. I use this document to help students "frame in" the learning goals, summarize lessons, create a useful reference, and develop sense of function by repeatedly focusing on all four faces(tables, graphs, equations, and situations.) I also find this document useful for planning.
7th - 11th
Algebra, Algebra 2, PreCalculus
Linear Functions Lesson Framework Student Handouts
Help focus your curriculum on big ideas. This framework is designed to accompany and guide the study on linear functions. We know that multiple representations are a key to communication and algebraic power. These guides provide a solid foundation for the rest of your curriculum and are ready to go day 1. I also have a free organizer sheet available for download that you may find helpful. Best of luck this school year!
These frameworks have been powerful tools for my students. They support con
7th - 11th
Algebra, Algebra 2, Other (Math)
Verbal Models and Word Problems
Word problems can be more difficult without some strategies. This practice sheet asks studentt to use of verbal models to write equations and answer questions.
7th - 11th
Algebra, Algebra 2
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