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Tom Sextro's Algebra Toolbox

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Holton, Kansas, United States
About the store
I’ve spent over 30 years in education as both a middle and high school math teacher and a technology director. I began my career teaching math and computer science, then spent many years helping schools use technology in practical, meaningful ways. After retiring from my technology director role, I returned to the classroom to teach Algebra 1. That experience gave me a fresh look at what today’s teachers and students really need. For years, I had hoped that 1:1 classrooms would lead to more day-to-day, unit-specific technology use. But when I got back into the classroom, I realized that many of the quick, simple, focused apps I wanted for my own lessons just were not there. My resources are built from that mix of classroom experience and technology background. I focus on creating practical, engaging digital activities that are easy for teachers to use, helpful for students, and realistic for real classrooms. Teachers do not always need a huge platform. Sometimes they need one practical activity that fits exactly with the skill they are teaching that day. My goal is to create tools that help students see the math step by step, while giving teachers something they can use right away without extra setup, logins, or complicated directions. I also want the activities to feel engaging for students — almost like a simple math game — with levels, instant feedback, and a clear guided-to-independent practice structure.
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All resources

Preview of Valentine’s Day Coordinate Plane Mystery Pictures

Valentine’s Day Coordinate Plane Mystery Pictures

Valentine’s Day Coordinate Plane Mystery Pictures | 25 Digital Graphing Activities Students practice coordinate graphing with 25 interactive Valentine’s Day-themed mystery picture activities. Students are given ordered pairs and click the correct point on the coordinate plane. Correct answers lock in, and when all points are plotted, the mystery picture is revealed. Includes: * Quadrant 1 activities * Quadrants 1 & 2 activities * Quadrants 1–4 activities Features: * 25 digital activities * Immed
Preview of Visual Distributive Property Step-by-Step Algebra Practice

Visual Distributive Property Step-by-Step Algebra Practice

Make the distributive property easier to understand with this visual, step-by-step digital algebra activity. Students do not just answer problems — they see how the outside number multiplies each part inside the parentheses.This activity is designed for students who need the distributive property broken down clearly. It shows the multiplication step-by-step, including positive numbers, negative numbers, subtraction inside parentheses, fractions, decimals, and mixed review problems.Students are g
Preview of Visual Order of Operations | 12-Level Interactive PEMDAS Digital Activity

Visual Order of Operations | 12-Level Interactive PEMDAS Digital Activity

Visual Order of Operations | 12-Level Interactive PEMDAS Digital ActivityHelp students finally understand why each step happens in Order of Operations—not just memorize a rule.Unlike traditional worksheets that simply provide problems and answers, Visual Order of Operations allows students to see the thinking process unfold one step at a time. Students can work through guided examples, identify common mistakes, and control the pace of the explanations as they build confidence with PEMDAS.This in
Preview of Step-by-Step Algebra: Combining Like Terms

Step-by-Step Algebra: Combining Like Terms

Help students learn how to combine like terms by sorting, grouping, and building the final answer one step at a time.This digital algebra practice activity is designed for students who need more than just a worksheet. Instead of jumping straight to the answer, students see the expression broken into visual pieces. They sort x-terms with x-terms, number terms with number terms, combine each group, and then build the simplified expression.This is especially helpful for students who get confused by
Preview of Visual Distributive Property FREE Activity | Step-by-Step Algebra Practice

Visual Distributive Property FREE Activity | Step-by-Step Algebra Practice

Try this FREE Visual Distributive Property Digital Activity before purchasing the full version.This free version gives students guided, step-by-step practice with the distributive property. Students see how the outside number multiplies each part inside the parentheses instead of just guessing an answer.This activity is designed to help students understand the process visually:3(x + 4)becomes3x + 12Students are guided through each step, including multiplying the first term, bringing down the sig
Preview of Visual Order of Operations FREE Sample | Interactive PEMDAS Digital Activity

Visual Order of Operations FREE Sample | Interactive PEMDAS Digital Activity

Visual Order of Operations FREE Sample | Interactive PEMDAS Digital ActivityLooking for a way to help students truly understand Order of Operations instead of simply memorizing PEMDAS?This FREE sample gives you a preview of the full Visual Order of Operations activity, where students learn by seeing each step happen visually and controlling the pace of the explanation.Students don’t just get the answer—they learn how to think through the problem.FREE Sample Includes✅ Level 1: Addition & Subtract
Preview of FREE Fraction Pizza Shop Trial

FREE Fraction Pizza Shop Trial

Fraction Pizza Shop Free Trial gives teachers and students a sample of the full digital fraction game. Students serve pizza orders by matching toppings to fractional parts of a pizza. They build the fractions visually, check their order, receive immediate feedback, and practice using fraction models in a fun pizza-themed activity. This free trial lets teachers preview how the activity works before purchasing the full version. What’s Included in the Free Trial This free trial includes 2 playable
Preview of FREE Interactive Slope Mini-App | Comparing Lines | Visual Concept Mastery

FREE Interactive Slope Mini-App | Comparing Lines | Visual Concept Mastery

This FREE interactive slope mini-app helps students visually understand how changing the b-value affects a line. Students compare lines such as y = x, y = x + 2, and y = x - 3. They see that changing the constant moves the line up or down without changing the steepness. This activity is designed for Algebra 1 students who need to see slope and linear relationships visually, not just memorize rules. Students can open the activity in a browser, work through the questions, and get immediate feedbac
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About the store

Experience

I’ve spent over 30 years in education as both a middle and high school math teacher and a technology director. I began my career teaching math and computer science, then spent many years helping schools use technology in practical, meaningful ways. After retiring from my technology director role, I returned to the classroom to teach Algebra 1. That experience gave me a fresh look at what today’s teachers and students really need. For years, I had hoped that 1:1 classrooms would lead to more day-to-day, unit-specific technology use. But when I got back into the classroom, I realized that many of the quick, simple, focused apps I wanted for my own lessons just were not there. My resources are built from that mix of classroom experience and technology background. I focus on creating practical, engaging digital activities that are easy for teachers to use, helpful for students, and realistic for real classrooms. Teachers do not always need a huge platform. Sometimes they need one practical activity that fits exactly with the skill they are teaching that day. My goal is to create tools that help students see the math step by step, while giving teachers something they can use right away without extra setup, logins, or complicated directions. I also want the activities to feel engaging for students — almost like a simple math game — with levels, instant feedback, and a clear guided-to-independent practice structure.

Teaching style

My teaching style is built around clarity, visuals, and student confidence. I like lessons where students can see what is happening, try it themselves, get immediate feedback, and improve without feeling stuck. I especially value activities that move students from guided practice to independent practice, because that is where real understanding starts to show.

Awards & shining teacher moments

One of my proudest moments has been returning to the classroom after many years in technology and using that experience to build tools my own students actually need. Seeing students engage with a computer based activity, understand a concept more clearly, and take ownership of their progress has reminded me why practical classroom technology matters.

My own education history

I have a background in mathematics and computer science, and I’ve spent my career helping schools integrate technology in meaningful ways. My current focus is bringing those two areas together to significantly improve classroom learning. Feel free to contact me at my new business email address with any issues you run into. Feel free to contact me at tom@k12focus.com with any issues, questions, or ideas for classroom apps that would be helpful in your own teaching. I’m especially interested in building simple digital tools that solve real classroom problems.

Additional biographical information

I specialize in creating practical classroom tools that save teachers time while improving student focus, confidence, and engagement. My resources are designed to be low-prep, student-friendly, and easy to implement for daily lessons, review, intervention, early finishers, or substitute plans. I’m also interested in how classrooms can evolve through teacher-created interactive tools, smarter approaches to student focus, and better ways to preserve educator wisdom. I share ongoing ideas and progress here: https://www.linkedin.com/in/tomsextro/ https://k12focus.com https://tomsextro.com