United We Solve

116 Math problems for Groups, Grades 5–10

ISBN 0-9648496-0-7. Wire bound.


Our payment processor, WePay, is deciding not to serve
small people like us without our jumping through more hoops.
See if it still works, but we're also trying out other providers.

Add to cart

here's PayPal...


And now we'll see if Amazon works...

Get It Together

The original! Published by EQUALS

ISBN 0-912511-53-2


Add to cart

Den of Inquiry, Volume 1

Data-Rich Labs for Introductory Physics

ISBN 0-9648496-4-8

Click for more information.

Add to cart

Den of Inquiry, Volume 2

Data-Rich Labs for Introductory Physics: Mechanics with Sensors

ISBN 0-9648496-5-5

Click for more information.

Add to cart

Signs of Change

History Revealed in U.S. Census Data

Twenty high-school student projects documenting events and phenomena in U.S. History, 1850–2000, using Census Microdata.

ISBN 978-1479222049.

Click for more information (goes to Amazon).

Print on Demand
at Amazon.