Comments from Users and their Parents

"Thank you for your material. I'm not sure where we would have turned without you! You are providing an invaluable service to homeschoolers! God bless."

 Carolyn

"We were very impressed with your curriculum that we started last summer with 3 of my kids. We are going ahead with "Algebra II with Trig" for my oldest, and ordered a used textbook from elsewhere. It is a truly excellent material, that my wife Ammu loves it (she was not too keen on teaching Algebra!!)."

Vijay

"We are so thankful for your Algebra II with Trig Course Bundle. I recommend it whenever I can. Our son will be a senior in the fall. We found you when he was struggling with Algebra II as a freshman. (He had taken Algebra I in 7th grade and Geometry in 8th grade from a prominent home school curriculum provider.) It was an answer to prayer to help him get past the wall and reach his full God given potential. When he took the PSAT as a Sophomore he was in the top 2% of college bound sophomores in math. With God and your help he is in the running to be a Semi-finalist and/or Finalist 2011 National Merit Scholar. His placement index and SAT score look like he will meet that goal. December of his junior year he scored 790/800 on the SAT. Words cannot thank God and you for what he has been able to accomplish."

Lisa

"We are very thankful for the results our son received from your Calculus 1 Course Bundle. As a Junior he received a 5/5 on the Calculus AB exam. We believe your product has helped him reach his full God given potential. Thank You."

Lisa

"I wanted to send a note to thank you for your website, for answering all questions and providing the support that you do. My son completed the Harold Jacobs Geometry course along with your DVD's and absolutely loved it. The course was simple, easy to follow and he was able to learn a great deal from the course. What he loved about it so much was not only the Geometry information but the actual historical information provided with almost each lesson. He was so intrigued about one of the examples in a problem that referenced a novel that he actually ordered it to just read for pleasure!

I have to speak a little bit about your support. I want to emphasize how impressed I am with your willingness and dedication to answer all questions very quickly. Whenever we had a question, your answer came within a few short hours. We have used different curriculum in the past and their support was way below an acceptable level - especially compared to yours. God bless you for raising the bar!"

Annette - Jacksonville, Florida

"Awesome --been watching, checking & waiting. [for algebra] Dr. Callahan you are simply the best for college prep. math! Thank you!! Regards, Michele W."

Michele, Maryland

"I love your curriculum, and my son says this is the best program he has ever done....and that's saying alot since he doesn't tend to compliment any math program!" 

Pam, Homeschooling mom in California

"[Our son] has been accepted into the Milwaukee School of Engineering. Your courses have been an essential component in our home education and [his] pursuit of Structural Engineering. Thank you very much for your excellent programs."

Cindy, Homeschooling mom in Wisconsin

"Thanks for your incredible course! Everyone LOVES geometry because of you!"

 Lynn, Homeschooling mom in Montana

"My daughter and I really enjoyed your Geometry course. I have always loved math and searched high and low to find something that would help my daughter love (or at least understand) it as well. We had success with your course and DVD"

Deborah, Homeschooling mom in California

"We now have two of our high schoolers using your materials. We are well-pleased."

 Eunice, Homeschooling mom in New Jersey

"Thank you for offering help when I needed it. On Monday I become a Swab at the Coast Guard Academy. Your calculus video series is pared with a great text, and I believe that it prepared me for Academy academics."

Brian, Homeschooling Graduate

"We just got a postcard from him (only written communication is permitted for the first 4 weeks), and he reported that he "validated" Calculus I. That's fairly hard to do (many cadets don't, according to my husband, who is an alumni). We just want to thank you for a terrific calculus program that has well prepared our son for a tough engineering program."

Mother of Brian (see above)

"I have a praise report. Since we've been using your course, [her] math scores on the real SAT's have been continually improving. She has taken test 1-4 with her score increasing each time."

Stephanie, Maryland, homeschooling educator

"Thank you for all that you have done to make this course. Every time we have had questions, you have answered and responded very quickly. I am enjoying calculus and especially the 'random facts'."

Brian, Homeschooling Senior, Florida

"I did what you suggested in ordering different Alg 2 programs and having my son help select what we would use. The other publishers received theirs back and we kept yours. It was easy to see that it contained the most quality."

Carolyn, California, homeschooling educator

"We were very appreciative of your Pre-Calculus course. It very much prepared Paul for his engineering work at Auburn. They have a stiff entrance math exam for the engineering school, and he did well enough to go straight into their engineering calculus. He enjoyed your teaching and personality too! In home schooling through high school, I think students and parents need outside expertise in some areas. You helped us to find that. Thanks for your input into Paul's life!"

Becky Johnson, homeschooling educator

"Pre-calculus and calculus were subjects that I definitely dreaded taking in high school. However, it ended up being not only a much better experience than I imagined but a great stepping stone for future courses both in high school and college. In these classes I learned not only the fundamentals of pre-calculus and calculus, but I also developed analytical skills through problem-solving assignments that I utilize even now. Also, the curriculum is also used at the University of Alabama at Birmingham (UAB), so it prepared me for college textbook format before I ever got to UAB. Although these classes are difficult by nature, the information was presented clearly and at a speed that was easy to handle. The difficulty of the material was balanced by the methods used by the Callahans in providing assistance whenever needed. Any time I had a question, they were just an email or phone call away and didn't hesitate to work with me until I had a clear understanding of the material. (I took advantage of this almost every week if I remember correctly!) These classes were a positive experience for me, and I would not hesitate to recommend the Callahans to anyone who asked."

Sarah, Homeschooling Graduate and Accounting Student

"We were very pleased with this calculus course our daughter took, and it prepared her well for college. She is now a junior in nursing at Samford University. We especially liked the way the instructor not only explained the math well, but also related it to real life situations and applications."

Phillip and Debbie Woods, homeschool educators

Comments from Professional Educators

"I do think this is a better course than Teaching Textbooks, and it certainly is better than what Saxon does with geometry. My concern with Jacobs has always been that it is not quite "user-friendly" enough, ESPECIALLY in its 3rd edition. Your videos fill the void, making what I think would be an easy- to-understand geometry course for most homeschools."

Dr. Jay Wile, Apologia

"Dr. Callahan's math courses were extremely useful for our son. They provided valuable instruction at a high level, which would have been very difficult to duplicate for the home-schooled student. Our son became a national merit finalist, and we believe that the excellent math instruction he received from Dr. Callahan were a significant contribution to his academic success."

David Smolin, homeschooling educator and Cumberland Law School Professor

"You have a very personal, non-threatening way of presenting the material, just the right approach for home-schooling students. I especially enjoyed the enactment of the "definition of a horse" lesson. The inserted quotations are also a very nice touch. "

Harold Jacobs, Textbook Author/Educator