## Fraction War Card Game

Years ago, I created this fraction war card game to give my math concepts students practice comparing fractions by finding common denominators. How to Play War War is a common card game that is typically played with a standard deck of 52 playing cards. The deck is shuffled and divided evenly between two players. Players …

## Make 30 Puzzles

I’ve been having a lot of fun recently posting these Make 30 Puzzles for my students to tackle on a daily basis. The goal of these Make 30 puzzles is to arrange the digits and any of the arithmetic operations to form an expression that evaluates to 30. For example, the digits 0, 2, and …

## Free Printable Factors Chart 1-100

One of my high school math students’ most used math reference sheets is this free printable factors chart for the numbers from 1 to 100. I give my algebra and pre-calculus students a copy of this 1-100 factors chart at the beginning of the school year, and we end up referencing them a lot. This …

## Prime Numbers Chart

I created this free printable prime numbers chart that features all of the prime numbers under 100 for my Pre-Calculus students to reference while simplifying radicals recently. I think it would be useful for a much wider range of math students, though. My students were looking for a quick way to tell if a number …

## Parts of the Coordinate Plane Graphic Organizer

I created this parts of the coordinate plane graphic organizer a few years ago for my beginning of year Pre-Calculus review. As I prepare to teach pre-calculus again this year, I have been looking through my notebooks from previous years. When I saw this page of notes yesterday, I thought to myself, I should really …

## Order of Operations Question Stack Activity

I created this order of operations question stack activity to give my Algebra 1 students extra practice applying the order of operations to some rather involved expressions. These order of operations questions are specially designed to expose students to various grouping symbols including parentheses, brackets, absolute value bars, radicals, and fraction bars. I created a …

## Is It Divisible Dice Game

I created this Is it Divisible Dice Game several years ago to give students practice with using divisibility rules. To play the game, students need to be able to determine if numbers are divisible by 2, 3, 5, 9, or 10. I used this game with 9th graders enrolled in “Math Concepts,” a course designed …

## Missing Parentheses – An Order of Operations Activity

I really like this order of operations activity that I am naming “Missing Parentheses.” I found it in the textbook Intermediate Algebra for College Students by Karl J. Smith and Patrick J. Boyle (free to borrow from the Internet Archive’s Online Lending Library). Yesterday, I shared a lovely set of 10 order of operations practice …

## Order of Operations Practice Worksheet

Today I’m sharing an order of operations practice worksheet based on a set of problems I recently ran across in an out-of-print textbook. I’ve been using part of my Spring Break to look through some math textbooks that have been digitized by the Internet Archive and are shared freely through their Online Lending Library. My …

## Pattern 15 and Pattern 30 Puzzles

Today I’m sharing two mathematical puzzles with you that Ivan Moscovich calls Pattern 15 and Pattern 30. Earlier this school year, I browsed a bunch of puzzle books looking for puzzles to post in my classroom that didn’t involve manipulating pieces. This was weird for me because I was intentionally trying to avoid the exact …