[cheerful upbeat music] ♪ HELLO, FRIENDS, AND WELCOME TO CLASSROOM CONNECTION. I'M MR. R., AND I AM SO GLAD YOU'RE HERE WITH US. THIS IS A SPECIAL PLACE WHERE TEACHERS AND STUDENTS GET TO TALK ABOUT ...

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The vast majority of students won’t take algebra until middle or high school. But teachers can start laying the groundwork for this pivotal class a lot sooner, some researchers say—and instilling ...