Teaching mental math strategies

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6.8K views · 1.1K reactions | Here’s the secret 👇  ✨Pre-teach any needed mental math skills students need for that strategy.✨  Let’s look at an example. Here are 3 mental math skills students need to successfully use the break apart addition strategy:   1️⃣ Students need to know how to break apart numbers: 20=20+5  2️⃣ Students need to know how to add tens together: 20+20=40  3️⃣ Students need to know how to add a teens number to a tens number: 40+14=54  A couple days before that actual lesson, I’ll put up a bunch of equations like these as our math warm up for the day. We solve them together as a class using a hundreds chart. Then I simply ask students what patterns do they see.  The patterns they see are just mental math skills! 20+20=40, 60+20=80, 30+40=70. Students will see you just a Subtraction Strategies, Addition Strategies, Number 40, Hundreds Chart, Teen Numbers, 2nd Grade Teacher, Mental Math, Math Tricks, Teaching Classroom

6.8K views · 1.1K reactions | Here’s the secret 👇 ✨Pre-teach any needed mental math skills students need for that strategy.✨ Let’s look at an example. Here are 3 mental math skills students need to successfully use the break apart addition strategy: 1️⃣ Students need to know how to break apart numbers: 20=20+5 2️⃣ Students need to know how to add tens together: 20+20=40 3️⃣ Students need to know how to add a teens number to a tens number: 40+14=54 A couple days before that actual…

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