About 80 school districts in Texas implemented the Algebraic Reasoning course in the 2016-17 school year and used our textbook as a preadoption resource. The AR development team at Cosenza & Associates, LLC, received invaluable feedback from teachers and math leaders in those districts!

One of the comments we heard from teachers around the state was that even though Algebra 1 is a required prerequisite for Algebraic Reasoning, many students still need help with Algebra 1 skills. As well, many students who are enrolled in Algebraic Reasoning courses are studying to retake the Algebra 1 End-of-Course (EOC) exam as a part of their graduation requirements.

To that end, we got to work.

## Algebra 1 Companion Guide

We developed the *Algebra 1 Companion Guide *to accompany the *Algebraic Reasoning* textbook. The guide is available exclusively in print and is an interactive consumable student guide. The order in which the mini-lessons appear complements the progression in the *Algebraic Reasoning* textbook. However, this guide could be used for any EOC preparation program.

Mini-lessons focus on the Algebra 1 TEKS. There is a mini-lesson and set of practice problems designed around a compact instructional plan with three components.

- The
**Tell Me More**section contains a brief summary of the key ideas, concepts, and skills that are addressed in the target Algebra 1 TEKS for that mini-lesson. - Stepped-out
**Examples**show students how to solve a problem that is based on the target Algebra 1 TEKS. Example problems address the multiple components (and multiple representations) contained in each TEKS/SE. **Practice**problems consist of a blend of constructed response and multiple choice questions that use the language students may expect to see on the Algebra 1 End-of-Course test. When possible, practice problems use griddable response questions so that students obtain practice using the grid that they will see on the Algebra 1 End-of-Course test.

## How Were the Mini-Lessons Created?

Every Algebra 1 TEKS/SE is addressed in the *Algebra 1 Companion Guide*. For some lessons, it is appropriate to bundle a few TEKS/SE’s together, as in the case of A.2E, A.2F, and A.2G, all of which address writing equations of parallel or perpendicular lines.

In other cases, one TEKS/SE or a pairing of TEKS/SE’s needs multiple lessons. For example, A.2B and A.2C pair nicely together and address writing linear equations from a graph, table of values, or verbal description. However, that pairing is too long for one mini-lesson, so the development team split the A.2B/A.2C pairing into two mini-lessons: one for writing equations from a verbal description and one for writing equations from a graph or table of values.

## Teacher Manual

The *Algebra 1 Companion Guide* teacher manual contains an answer key as well as advice for how to use different features of the interactive student companion. The manual provides explanations connecting the Algebra 1 content to the information in the corresponding section of the *Algebraic Reasoning* textbook.

## Pricing

The *Guide,* an interactive paperback consumable student edition, is sold individually with a minimum order of 20 student books. Pricing includes built-in volume discounts. One teacher manual is included for every 30 books purchased at no additional cost. ISBN: 978-0-9972265-7-7

- 20-30 student books are $20.99 each
- 31-60 student books are $17.99 each
- 61 or more student books are $14.99 each

## Mini-Lesson Samples

View and download samples of the *Algebra 1 Companion Guide* mini-lessons! To open these in a new browser window or tab, please right-click and select Open Link in New Tab (Mac: Press COMMAND and click).

TEKS | Sample Document |
---|---|

A.2E: Write the equation of a line that contains a given point and is parallel to a given line. A.2F: Write the equation of a line that contains a given point and is perpendicular to a given line. A.2G: Write an equation of a line that is parallel or perpendicular to the X or Y axis and determine whether the slope of the line is zero or undefined. | Download Sample |

A.9C: Write exponential functions in the form f(x) = ab^x (where b is a rational number) to describe problems arising from mathematical and real-world situations, including growth and decay. | Download Sample |