The latest version of TT (the 3.0) is now subscription-based, and each subscription lasts for 12 months (per student, per course). Each subscription also allows for 90 days' worth of pause time. You may activate the pause any time you choose, but you must use at least 7 days of pause time before unpausing.
NOTE: If you would like to order one of our old physical 2.0 sets—books plus discs—click here.
The Teaching Textbooks™ 3.0 Large-Family Discount Plan
Complete Program: 12-Month Subscription for 4-8 Students: $199.08 (which works out to only $16.59 per month)
Note: You choose which courses your students will be taking after you purchase the plan.
The Pre-Calculus Teaching Textbook™ 3.0
Complete Program: 12-Month Subscription per Student: $67.08 (which works out to only $5.59 per month)
Note: This product requires a TI-83 Plus Calculator (by Texas Instruments).