"You Can't Subtract a Bigger Number" (and Other Misconceptions We Tell Kids)

We've all heard these classic math "rules"—but what if they're actually setting students up for confusion down the road? In this video, we break down some of the most common math language faux pas teachers use (often with good intentions) and why precise language matters more than quick tricks, especially in the early years. 📌 In this video, we discuss: ✅Why "you can't subtract a bigger number" is a myth ✅How "plus means more" breaks down with negative numbers ✅Rethinking "two negatives make a positive" ✅Why "just add a zero" doesn't hold up across number forms We also reference the article "13 Rules That Expire," a favorite resource on this topic —https://www.academia.edu/68196906/13_... This is the first video in a series where we'll be breaking down the language shifts we've made in our own classrooms, one faux pas at a time. #MathEducation #TeachingMath #MathMisconceptions #NumberSense #EarlyMath #MathLanguage ⏱️ TIMESTAMPS 0:00 Subtraction language misconception 0:40 Addition language 2:21 The "add a zero" misconception 🔑 Key takeaway: The language we use with students—especially in preschool through early elementary—lays the foundation for how they'll reason about numbers for years to come. Imprecise shortcuts might "work" temporarily, but they create misconceptions that resurface (and confuse) students later, especially once negative numbers, fractions, and algebra enter the picture. 📺 Part of our ongoing series using language as a model for thinking in mathematics. Watch more:    • Language as a Model for Thinking Mathemati...   💬 Have a math language faux pas of your own? Drop it in the comments below. 👍 Like this video if you found it helpful, and subscribe for more tips on teaching math with clarity and precision. This channel helps K-8 teachers build precise math language and strengthen students' number sense, one classroom moment at a time. #MathEducation #TeachingMath #MathMisconceptions #NumberSense #EarlyMath #MathLanguage