Use the clues and problem solving strategy, trial and error, to solve this problem. When you have your solution you can check it right on this one page website.

On this one page website use trial and error to find the words hidden in the spelling circles. Check your solution right at the website.

Trial and error is just one of the problem solving strategies that you could use to solve this bucket problem. After you finish view the solution at this one page website.

Have you seen a radar bill lately? Explore number patterns, number combinations, and probability in this math challenge that examines serial numbers on U.S. bills. A one page activity from the NCTM Math Challenges for Families series.

The Number Cracker needs you to help find a secret code by identifying the missing number in a series.

A fun puzzler to get any mind thinking logically! Try many levels of puzzles using the following rules: "Enter digits from 1 to 9 into the blank spaces. Every row must contain one of each digit. So must every column, as must every 3x3...

Sharpen your logic and pattern creation skills performing this fun game. Includes solution.

Sharpen your logic and pattern-creation skills while working on this challenge. A solution is available to check your results.

Three trig tables are provided for student and teacher reference. The first table lists the sine, cosine, tangent, secant, cosecant, and cotangent values of all whole-number angles from 0 to 90. The radian equivalent (to four decimals)...