Math Vocabulary Flash Cards for Grades 3-5 | NewPath Learning | Educational Classroom & Homeschool Learning Tool | Perfect for Math Practice & Test Prep

The card for the word range is wrong.The numbers used in the math make no sense.First, the numbers in the text do not match the numbers circles in the image below.Second, the numbers circled in the image below are wrong and not what you should be using to calculate range.You DO NOT subtract the middle number and the smallest number - that makes no sense but its what this card teaches you to do.The correct math should be 10-1 = 9.FYI - A range in data shows the FULL spread of the data. Since the data spread from 1 book to 10 books... you need to subtract those two numbers.Now, I teach math and science.I have a degree in science.And I second guessed myself thinking I had some wrong understanding.... so I had to verify I really knew what I was talking about before posting this review.If a wrong vocab card can make me question myself - how will the students feel?Publishers should never EVER put out a product with errors or wrong information for that very reason.Now I am wondering what else is wrong in this set... but do I really have time to look at every single card in the entire deck?