In response to the above review, the mid workbook "quiz" is actually the test. It is to be removed from the pace and only given to the student after the self test is completed. I can see why they are having trouble with the materials. If they believe there are any errors, they can directly contact the publisher. I found an incredible amount of errors in Abeka, so much so that I searched for other options, and that is how I started using ACE. Only a couple so far, after a few years....far less than Abeka.

My son and I enjoy these paces and he learns and retains so much. We had tried different curriculum for science but this is by far the simplest to use and very educational. It's so easy to keep track of progress/grades. I sit with my son and am very involved with his work; I don't just turn him loose with any curriculum. We will definitely continue with these bright, colorful paces and would highly recommend them to other homeschooling families! CBD is the best place to order from. Thank you for great quality and great service!

I am rather shocked that a learning guide for children written by adults could have such glaring mistakes. Simple concepts such as land vs. sea breezes are reversed in places, as are other "facts" they teach about the oceans. Those are the errors so far....The questions on the mid-workbook quiz are poorly organized, as many of them are related to information in the workbook that isn't addressed until sometime after the quiz. It could be an "OK" resource if the teacher of the child using it is able to pick up the errors and correct them, and use the workbooks as a sort of guideline, which is what I've had to do.