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Problem Solving for Your Classroom

Written by teachers, designed for your students
Written by teachers, designed for your students

Yesterday's Popular Games

Mastermind variation, with words
Discover the hidden word before it's too late
Create words on the letter wheels
Match color, font, and letter in this strategy game
Our own variation on a traditional word search
Reveal the picture by finding the word

Blogs on This Site

Reviews and book lists - books we love!
The site administrator fields questions from visitors.

Our Games at Portland Proof

Find and fix the mistake in the sentence.
Select the correct word to complete the sentence
Make words by filling in letters

Recent Lesson Plans

The following is a list of some of the lesson plans which teachers have recently added to the site.

Recent Pro Problems

The following is a list of some of the problems and puzzles which teachers have recently added to the site.

Ask Professor Puzzler

These are some of the recent blog posts from Professor Puzzler

Book Scrounger

These are some of the recent blog posts from the Book Scrounger's blog


Welcome to The Problem Site, a site fueled by a passion to provide interesting, informative, and valuable content to educators and students. We have an enormous collection of math problems, physics problems, brain teasers, and puzzles written by educators. We also have a fine collection of educational games. These games aren't all fancy graphics and silliness; the focus is on the educational value for students, so those who play our games will get the most puzzling, problem solving, and learning, in a compact time frame. Our games include word games, math games, strategy games, and even a handful of games specifically designed for young children. And if all that isn't enough, we also have printable mazes, worksheets, and vocabulary lists, and quizzes on a variety of subjects. The list of icons below will help you get started finding the resources you want.

English language educational games
Fun and educational games for math students
Games of strategy and skill for 1 or 2 players
Useful information and trivia on many subjects
Come back every day for brand new puzzles!
Play games on your phone or tablet.
Games suitable for younger children
Math problems and brainteasers
Print your own customizable worksheets
Give your students assignments from this site
Useful tools and worksheets for teachers and parents
Hire a math competition problem writer for your league.
Educational resources for holidays and seasons of the year
Lesson plans designed by teachers

Note: We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.

New on the Site!

We have recently added several new units to The Physics Study Guide! You can read about the history of the guide in our news blog, or visit any of the following completed units:

Ask Professor Puzzler

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