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Johnathan Barnett

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alabaster, Alabama, United States

About the store

PhD in mathematics with 13 years of teaching experience. I've taught math classes ranging over the high school and college (undergraduate) curriculum. Some of what I have taught includes the following: Algebra Geometry Precalculus Calculus Linear Algebra (Ordinary) Differential Equations Discrete Math Programming for Mathematics Statistics (AP) Math for Elementary Education Complex Analysis I have been slowly building up a variety of resources for my students. Perhaps the largest is my website of online math notes: https://math-website.onrender.com/

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Target Expression Puzzles Bundle: Algebra Bellringers and Warm-Ups Vols. 1–2

Created by

Johnathan Barnett

Target Expression Puzzles Bundle: Algebra Bellringers and Warm-Ups Vols. 1–2 Save with the bundle! This bundle includes both: Target Expression Puzzles: Algebra Foundations Vol. 1 Target Expression Puzzles: Factoring & Quadratics Vol. 2 Together, these resources provide 120 algebra puzzle bellringers designed to strengthen algebraic reasoning, structural thinking, and problem-solving skills through engaging mathematical challenges. What Are Target Expression Puzzles? In each puzzle, students m

9th - 12th

Algebra, Algebra 2

Target Expression Puzzles: Factoring & Quadratics (Vol. 2)

Created by

Johnathan Barnett

Target Expression Puzzles: Factoring & Quadratics (Vol. 2) 60 Algebra Bellringers and Warm-Ups Looking for a fresh alternative to traditional algebra warm-ups? Target Expression Puzzles challenge students to strategically combine algebraic expressions to create a target expression. Students must use all four outer expressions exactly once while applying algebraic operations such as addition, subtraction, multiplication, division, exponents, and parentheses. This volume focuses specifically on: f

9th - 12th

Algebra, Algebra 2

Also included in: Target Expression Puzzles Bundle: Algebra Bellringers and Warm-Ups Vols. 1–2

Target Expression Puzzles: Algebra Foundations (Vol. 1)

Created by

Johnathan Barnett

Looking for a fresh alternative to traditional algebra warm-ups? Target Expression Puzzles challenge students to strategically combine algebraic expressions to create a target expression. Students must use all four outer expressions exactly once while applying algebraic operations such as addition, subtraction, multiplication, division, exponents, and parentheses. These puzzles help students build: algebraic fluency,factoring intuition,structural reasoning,simplification skills,and persistence i

10th - 12th, Higher Education

Algebra, Algebra 2

Also included in: Target Expression Puzzles Bundle: Algebra Bellringers and Warm-Ups Vols. 1–2

Solids of Revolution - Animated Visuals

Created by

Johnathan Barnett

This product gives you .py and .ipynb containing code that generates animated visuals of solids of revolution. This is an excellent resource to help Calculus students visualize how disks, washers, and shells play a role in finding volumes. Animations allow play, reverse, pause, and speed variability. Code is editable for personalized functions and axes of rotation. Code currently contains 7, ready-to-go, built-out blocks. 3 disk method problems - each about different axes2 washer method problems

11th - 12th, Higher Education

Calculus

Visualizing Calculus: A Visual Reference for Students and Teachers

Created by

Johnathan Barnett

Bring core calculus concepts to life with this classroom-ready visual resource. Designed by a PhD in mathematics with years of teaching experience, this packet uses clear diagrams and targeted prompts to build conceptual understanding from the ground up. Whether you’re teaching AP Calculus or Calculus I, these visuals help students see the math behind the rules. ✅ What’s Included7 core concepts visualized (25+ pages total)Teacher copies with labeled diagrams and instructional notesStudent copi

11th - 12th, Higher Education

Calculus

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About the store

Experience

Teaching style

Active Learning whenever possible.

My own education history

PhD in Mathematics having focused on Graph Theory, Linear Algebra, and Complex Analysis.

Additional biographical information

I am Dr. Johnathan Barnett. I am a husband, father, mathematician, teacher, dabbler in programming, novice woodworker, avid reader, and life-long learner. While I love to learn and keep busy with various projects, my (vocational) calling is to make mathematics make sense to others. I enjoy the challenge of figuring out how to present a subject in a manner than finally breaks through to a student.