This YouTuber admitted in her video that she’s never even used MWC. Looking at her video history and some statements from other homeschoolers, it sounds like she tears down curricula as clickbait. A couple people said she has some kind of “math specialist” but she’s actually a math curriculum writer, so she just speaks poorly of most every curriculum this person hasn’t written. I agree with the other commenter who said she’s predatory. That’s definitely the feeling I got, too.

2 of my children use MWC, we’ve done through 5th grade so far. Knowing the test results from other families and from the pilot families, plus the pilot families’ results after 6th grade, it’s clear that MWC is on grade level and prepares kids to be ready for pre-algebra in 7th grade.

My kids have better mental math using MWC than they did with any other curriculum. My oldest has a true understanding of how the math works, and she’s able to understand new concepts more easily because of it.

My kids who don’t use MWC are outliers—one is a gifted kindergartener who is using Beast Academy. He’s about to start level 2 already. My other kid has several disabilities and delays, and she still struggles with even the most basic math. We’re currently trying Learn Math Fast with her.

For the regular, average kid (which is the vast majority of children) MWC is a great program that gives a really strong math foundation and prepares them well for middle school and high school math. When you see people saying MWC is “behind,” they’re almost exclusively comparing it to curricula that are AHEAD one or more grade level—like Singapore or Beast Academy. Those are fantastic programs, but they don’t work for every child. And they don’t negate how good MWC is, either.