Add To Cart   Challenging Mazes
These mazes will challenge children and adults alike! They are quite difficult. Keep an eraser handy.

(PB, 8 1/2 x 11, 60 pages) by Daniel Quinn.   $3.50

Add To Cart   Coloring Book - 3-D Alphabet
A great precursor to drafting or drawing perspective, this book illustrates how you can create visual illusions by line placement and coloring. For example, you can make the letters come forward or recede, appear 3-dimensional or flat, by the colors you choose.

(PB, 8 1/2 x 11, 27 pages) by Jean Larcher.   $2.95

Add To Cart   Coloring Book - Optical Illusions
This would be a fun addition of any math program. Seeing is not believing!

(PB, 8 1/2 x 11, 31 pages) by Koichi Sato.   $2.95

Add To Cart   Fifteen Puzzle
Do you remember the days when this small puzzle challenged you? We do! We loved them as children, and when we saw that a company had brought these back out for sale, we just had to carry them! Scramble the fifteen number tiles in the tray, then try to slide them into correct numerical order. These are very challenging to young minds, and are also a perfect thing to take along for a car ride or give as a gift! This new edition is as indestructible as the original. It has a polished stainless steel back-plane with enamel coated keys, just as it appeared at the height of its popularity during the 1930's. It also comes with a handy leatherette carrying case. A small booklet is included with over 30 challenging puzzles. Ages 8 to adult.

 $9.95