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Variable Vault

Rated 4.85 out of 5, based on 13 reviews
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Seattle, Washington, United States
About the store
Welcome to Variable Vault! I create engaging, student-centered math resources that help learners find joy and purpose in every problem. With a focus on inquiry-based tasks, real-world connections, building classroom community, and ongoing formative assessments, these resources are designed to help students explore math deeply — and enjoy the journey. Perfect for middle and high school math classrooms!
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Preview of Radical Expressions Bundle | Card Sort & Stations | Algebra 1 & 2 Activities

Radical Expressions Bundle | Card Sort & Stations | Algebra 1 & 2 Activities

Created by
Variable Vault
Increase student confidence and understanding of radical expressions with this bundle of thinking-focused and skill-building activities that can be used in a variety of ways. This resource combines a differentiated card sort and a 14-station activity to support students in simplifying radicals, performing operations, and rationalizing denominators. These activities go beyond procedural practice and encourage students to analyze, compare, and justify their thinking. What’s Included This bundle
Preview of Quadratic Modeling Word Problem & Graph Task | Revenue & Profit | Algebra I & II

Quadratic Modeling Word Problem & Graph Task | Revenue & Profit | Algebra I & II

Created by
Variable Vault
This 37-page differentiated multi-day quadratic modeling lab engages students in building a quadratic function from the product of two linear relationships. Students model revenue (and profit at advanced levels), determine maximum values, interpret intercepts, and evaluate reasonableness within context. Rather than simply solving a quadratic, students construct — developing deep structural understanding of why multiplying two linear functions produces a quadratic model. 3 Differentiated Levels
Preview of Radicals Stations Activity | Simplifying, Operations, & Rationalizing | Algebra

Radicals Stations Activity | Simplifying, Operations, & Rationalizing | Algebra

Created by
Variable Vault
Help students build a deeper understanding of radical expressions with this engaging 14-station activity. Students practice simplifying radicals, performing operations with radicals, and rationalizing denominators while developing conceptual understanding through a variety of tasks. About This Activity Students rotate through 14 math stations (68 total expressions), each focused on a specific skill related to radical expressions. Each station includes a clearly stated learning objective, helpi
Preview of Simplifying Radicals Card Sort Activity | Algebra 1 & Algebra 2 Square Roots

Simplifying Radicals Card Sort Activity | Algebra 1 & Algebra 2 Square Roots

Created by
Variable Vault
Help students develop a deeper understanding of equivalent radical expressions with this differentiated Simplifying Radicals Card Sort Activity. Students analyze and match multiple representations of square roots while exploring how radical expressions can represent the same value. This activity moves beyond procedural practice and encourages students to identify patterns, simplify radicals, and justify their reasoning. About This ActivityStudents work with cards containing different radical exp
Preview of Simplifying Radicals (Square Roots only) Worksheet | Algebra I and Algebra 2

Simplifying Radicals (Square Roots only) Worksheet | Algebra I and Algebra 2

Created by
Variable Vault
This worksheet is designed to help students master the process of simplifying radicals while solving a fun riddle. Each problem students solve reveals a piece of the riddle's answer, making learning interactive and enjoyable! **What's Included:** 1. **Comprehensive Worksheet** - A variety of problems to simplify radicals, ranging from basic to more challenging examples. 2. **Riddle Integration** - Each correct answer corresponds to a clue that students will use to solve a fun riddle. 3. **Self-C
Preview of Quadratics Practice Activity | Key Features | Attributes | Graphs & Tables

Quadratics Practice Activity | Key Features | Attributes | Graphs & Tables

Created by
Variable Vault
Whether you're introducing, reinforcing, or reviewing quadratic functions in their 3 forms, their key features and attributes, and their graphs, this activity supports deep understanding of all three quadratic equation representations: standard form, vertex form, and factored form. With built-in differentiation and flexible formats, this resource is perfect for whole-class instruction, centers, intervention, or enrichment. 12 equations allow for a mix and match approach: use as classwork, gui
Preview of Introduction to Quadratic Functions | Activity | Compares Linear Functions

Introduction to Quadratic Functions | Activity | Compares Linear Functions

Created by
Variable Vault
This inquiry-based lesson helps Algebra 1 or 2 students discover the defining characteristics of quadratic functions by observing, comparing, and reasoning—before formal definitions or procedures are introduced. In this constructivist introduction, students analyze multiple quadratic graphs drawn on the same coordinate scale and use a structured graphic organizer to identify patterns related to function behavior, intercepts, shape, and key features. Students also build understanding through comp
Preview of Quadratic Vertex Form by Completing the Square | Guided Notes | Practice | Quiz

Quadratic Vertex Form by Completing the Square | Guided Notes | Practice | Quiz

Created by
Variable Vault
Students learn to convert quadratic equations from standard form to vertex form by completing the square when a=1 and when a≠1 with this comprehensive, student-friendly resource that includes: Guided notes including 4 problemsPractice problems (12 problems in total)Challenge problems (4 problems in total), and A check for understanding or quiz.The completing the square process is broken into clear, manageable steps with visual spacing and intentional structure to reduce common errors and suppor
Preview of Polynomials, Degrees, & Finite Differences | Guided Notes, Practice, & Quiz

Polynomials, Degrees, & Finite Differences | Guided Notes, Practice, & Quiz

Created by
Variable Vault
Students learn how to identify polynomial expressions, including what is and isn't a polynomial, learn vocabulary tied to polynomials, and determine the degree of a function from a table of values using the finite differences method. This lesson builds a critical foundation for quadratic functions and higher degree polynomials by connecting polynomial structure to patterns in tables. Students work through guided notes to define polynomials, identify degree and leading coefficient, and classify e
Preview of Christmas Tree Graphing Linear Equations Activity | Domain | Multiple Versions

Christmas Tree Graphing Linear Equations Activity | Domain | Multiple Versions

Created by
Variable Vault
🎄 Bring festive fun and meaningful rigor to your Algebra classroom with this Christmas Graphing Activity, where students create a Christmas tree using equations and restricted domains. Students graph a Christmas tree using linear equations with restricted domains, carefully connecting multiple line segments to form a complete image. With four differentiated versions included, this activity is perfect for meeting the needs of diverse learners and for use across Algebra I and Algebra II courses.
Preview of Quadratic Key Features | Vertex, Roots, y-intercept | 2 Activities | Task Cards

Quadratic Key Features | Vertex, Roots, y-intercept | 2 Activities | Task Cards

Created by
Variable Vault
In this two-activity task card resource designed to deepen conceptual understanding of quadratics as well as skills, students identify key features of quadratic functions when given equations in standard, factored, and vertex forms (activity 1) and write quadratic equations when given the y-intercept, roots (x-intercept or zeros) and a value for a (activity 2). This set includes two complementary activities that move students from analyzing quadratic equations to creating them, strengthening co
Preview of Guided Notes: Law of Sines | Practice Problems | Ambiguous Case| Video Support

Guided Notes: Law of Sines | Practice Problems | Ambiguous Case| Video Support

Created by
Variable Vault
Engage your students with these Law of Sines guided notes featuring a warm-up review, step-by-step explanation, 7 practice problems, and a full video walkthrough—including all three ambiguous case scenarios (two, one, or no triangle). This resource walks learners step-by-step through the concept, starting with a warm-up that reviews key prerequisite skills: Right Triangle Trig (SOHCAHTOA)Identifying ASA, AAS, and SSA in triangles From there, students are guided into what the Law of Sines is,
Preview of Guided Notes: Right Triangle Trig, Unit Circle, and Graphs of Sin, Cos, and Tan

Guided Notes: Right Triangle Trig, Unit Circle, and Graphs of Sin, Cos, and Tan

Created by
Variable Vault
These comprehensive guided notes bridge the gap between right triangle trigonometry and the unit circle, and extend to the graphs of sine, cosine, and tangent. Designed to cater to diverse learning styles, this resource provides multiple options for use and incorporates several unit circles to facilitate deep understanding. Perfect for high school mathematics teachers, these guided notes will elevate your trigonometry lessons and help your students excel. What’s Included:✅️ Right Triangle Trigo
Preview of Card Sort - Factoring the GCF out of Binomials + Rewriting in Factored Form

Card Sort - Factoring the GCF out of Binomials + Rewriting in Factored Form

Created by
Variable Vault
Card Sort Activity - Factoring the GCF out of a binomial and rewriting the binomial in factored form This card sort activity contains 20 different binomials, including 2 binomials that do not have a common factor. Students find the GCF of each term and factor it out, rewriting the binomial in factored form. Students align their cards as follows: original binomial, GCF, factored form. This great hands-on activity to practice finding GCFs and factoring them out works well with partners or small gr
Preview of Snowflake Graphing - Graphing Linear Equations to Create a Snowflake

Snowflake Graphing - Graphing Linear Equations to Create a Snowflake

Created by
Variable Vault
Ring in winter with this snowflake graphing activity!In this activity, students graph a 24 line segments with a given domain (and 4 ranges) to create a snowflake. Line segments include diagonal (y=mx+b), horizontal (y=k), and vertical (x=k) lines. This activity supports students in developing an understanding of how domain is used in graphing while allowing students to practice graphing lines by creating line segments due to the domain. For students who love art, this activity can be embellished
Preview of Lesson Plan & Resources - Factors, Factor Pairs, GCF, & Factoring out the GCF

Lesson Plan & Resources - Factors, Factor Pairs, GCF, & Factoring out the GCF

Created by
Variable Vault
This resource is a complete lesson, complete with a detailed lesson the includes a number of resources (detailed below) with options for differentiation, strategies to increase student voice and engagement, and connections to the Danielson Framework for Teaching and much more. Learning Targets/Objectives:Learning Target 1: I can find the factors of a number. Learning Target 2: I can find the factor pairs of a number. Learning Target 3: I can find the greatest common factor (GCF) of at least two
Preview of Linear Equations, Slope, Intercepts, Parallel, Perpendicular | Print & Digital

Linear Equations, Slope, Intercepts, Parallel, Perpendicular | Print & Digital

Created by
Variable Vault
Linear Functions Mystery State Activity | Print & Digital | Self-CheckingEngage your students in a fun, interactive way to master linear functions with this self-checking mystery state activity! Designed for both print and digital use, this resource allows students to apply key algebraic concepts while unlocking clues to identify a mystery state. Students solidify their math skills while learning cool things about a state. It's a geography - math connection! Skills Covered in the 19 problems:
Preview of Simplifying Radicals Worksheet | Add, Subtract, Multiply, Divide | Algebra 1 & 2

Simplifying Radicals Worksheet | Add, Subtract, Multiply, Divide | Algebra 1 & 2

Created by
Variable Vault
Engage your students with this one-of-a-kind worksheet that combines math practice with historical intrigue! This no prep resource challenges students to master simplification of radicals (adding, subtracting, multiplying, and dividing) while diving into the lives of famous mathematicians. What’s Included:Rigorous Radical Practice: 18 problems - broken into Rounds 1 and 2 on separate sheets - designed to reinforce key skills in simplifying radicals with a varied difficulty. Round 2 has more diff
Preview of Solve Systems of Equations by Graphing (Multiple Themes) with video supports

Solve Systems of Equations by Graphing (Multiple Themes) with video supports

Created by
Variable Vault
Students solve systems of linear equations and find points of intersections by graphing with this individual practice sheet. Engage your students with these unique, self-checking practice sheets designed to make solving systems of linear equations fun and self-checking. This comprehensive resource features three captivating themes: Coffee Cups, Hearts, and Footballs, catering to diverse interests and keeping students motivated. What's Included:✅️ 3 Themed Practice Worksheets - (all problems are
Preview of Rationalizing the Denominator Worksheet | Algebra I & Algebra 2 | Square Roots

Rationalizing the Denominator Worksheet | Algebra I & Algebra 2 | Square Roots

Created by
Variable Vault
Make math practice engaging with this fun worksheet on rationalizing the denominator!This no prep worksheet focuses on rationalizing denominators with both monomial and binomial expressions, offering a variety of problems to strengthen student skills. Designed for independent practice, this resource encourages students to master an essential algebra concept while having fun solving a funny riddle. The riddle provides a lighthearted challenge that keeps students motivated as they work through the
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About the store

Experience

Welcome to Variable Vault! I create engaging, student-centered math resources that help learners find joy and purpose in every problem. With a focus on inquiry-based tasks, real-world connections, building classroom community, and ongoing formative assessments, these resources are designed to help students explore math deeply — and enjoy the journey. Perfect for middle and high school math classrooms!

Teaching style

I am passionate about helping students find joy and success in math. In my classroom, students talk about math with their peers and learn by doing. I love an activity-based classroom where students are engaging in math in a variety of ways, grappling with problems and showing up as leaders. Every student has a strength to offer in the math classroom; they just need to opportunity to show it.