In Core Meltdown Coming, Education Realist looks at how the Common Core will change math instruction.

Right now middle school math, which should ideally focus almost entirely on proportions, is burdened with introductions to exponents, a little geometry, some simple single variable equations. Algebra I has a whole second semester in which students who can’t tell a positive from negative slope are expected to master quadratics in all their glory and all sorts of word problems.

But Common Core standards add exponential functions to the algebra one course load and compensate by moving systems of equations and exponent laws to eighth grade while much of isolating variables is booted all the way down to sixth grade. Seventh grade alone bears the weight of proportions and ratios, and it’s one of several curricular objectives. So in the three years when, ideally, our teachers should be doing their level best to beat proportional thinking into students’ heads, Common Core expects our students to learn half of what used to be called algebra I, with a slight nod to proportional thinking . . .

“Half” of geometry is being pushed down to middle school too, writes Ed Realist.

In theory, students will arrive in high school ready to learn “complex, real-world mathematical tasks.” But only if they’re able to learn in middle school what many students are not able to learn in high school.

Under Common Core, college and career readiness requires passing Algebra II. Education Secretary Arne Duncan says Common Core will stop us “lying to kids about whether they are ready. Finally, we are telling them the truth, telling their parents the truth, and telling their future employers the truth. Finally, we are holding ourselves accountable to giving our children a true college and career-ready education.”

Honesty doesn’t require new standards and tests, writes Ed Realist.

We could just say to any kid who can’t score 500 on the SAT math section or 23 on the ACT: Hey, sorry. You aren’t ready for college. Probably won’t ever be. Time to go get a job.

If we don’t have the gumption to do that now, what about Common Core will give us the necessary stones? Can I remind everyone again that these kids will be disproportionately black and Hispanic?

Common Core math was designed to get schools to teach “integrated math” rather than the traditional algebra, geometry and advanced algebra sequence, writes Ed Realist. North Carolina, Utah and West Virginia have made the switch. Integrated math is a great way to hide the fact that many students aren’t prepared for college math, writes Ed Realist.

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