Mark Twain, the famous American author, is often studied in the school system. Use "The Prince and the Pauper" to analyze the differences between the text and its video version.  This lesson plan includes several culminating project...

Students read all about dinosaurs. In this biology lesson plan, students  examine how to use library research as integral part of scientific research.

Students study Native Americans of Virginia. In this Virginia history lesson plan, students take on the role of archaeologists as they analyze a site and its artifacts. Students use the information to draw conclusions about the natives...

The resource consists of 378,028 math puzzles available in three different levels. Students use multiplication, division, addition, and subtraction skills to solve the puzzles. The puzzles can be solved online or downloaded as a PDF file.

The famous Clockenheimer Cuckoo is missing from Clockenheimer Clocks on Main Street! Help Math Maven get it back by solving a math riddle.

[Free Registration/Login Required] A collection of teacher created activities that focus on basic addition practice. Includes frog counters that can be printed and laminated, a dot-to-dot activity, and ready-to-use math worksheets that...

Use this interactive math crossword puzzle to build number sense skills. Simply fill in the missing numbers based on the operation. Immediate feedback given to responses.

[Free Registration/Login Required] Solve the number puzzles as you practice basic addition skills and improve your number sense. The site has challenging activities with varying levels of difficulty.

In this activity you can practice mental math by finding the value of each of the objects with the help of the given pictures.

A collection of math worksheets covering a multitude of math topics.

Click on each puzzle and print out these colorfully illustrated PDF file pages to practice these addition facts. Put them in a math center. Laminate them and they will last even longer.

This page offers a variety of math center ideas for general math and geometry. Instructions on setting up the center are not provided for most ideas, however, those lacking instructions are pretty self-evident.

An interactive math game that includes work on addition, subtraction, division and multiplication. Click Help for instructions.

This is a demo version of the game with two modes of play. In one, you must place number tiles on a grid so that the tiles touching it add up to that number. In the second mode, you solve number puzzles. Be sure to read the instructions...

Put together the puzzle to solve the mystery by solving addition problems.

On this one page website sharpen your logic and addition skills while working on this challenge. The solution is available to double check your solution.

On this one page website sharpen your logic and addition facts skills while working on this challenge. The solution is available to double check your solution.

Please excuse my dear Aunt Sally. This sentence takes on greater meaning when students realize it will assist them in remembering the all-important order of mathematical operations. A lesson plan, several interactive practice pages, and...

In Spanish. Practice your mental math skills with this site. You will find different activities for every month of the year. Different levels of difficulty and suggested time limit for each activity are also provided.

In Spanish. Practice your mental math skills with this site. You will find different activities for every month of the year. Different levels of difficulty and suggested time limit for each activity are also provided.

In Spanish. Practice your mental math skills with this site. You will find different activities for every month of the year. Different levels of difficulty and suggested time limit for each activity are also provided.

In Spanish. Practice your mental math skills with this site. You will find different activities for every month of the year. Different levels of difficulty and suggested time limit for each activity are also provided.

Enter the Mystical Temple and discover hidden treasure by placing the number orbs in the correct spots on the pedestal. Great addition skills are essential in this exciting math puzzle game. Give it a try!

At this site us these tips & tricks to help students become better mental mathematicians.