New Math vs Old Math: What Parents Need to Know
It’s Wednesday afternoon, and you’re sitting down to help your child with their math homework. You take a look at the directions and feel completely lost. What are all these circles and boxes? This isn’t how you learned math.
‘New math’, or Common Core math, can look very different from ‘old math.’ Both methods get to the same answer, but your child’s path to the solution may seem strange to you.
Many parents have found themselves in a similar situation, not understanding how to help their child with these new methods. You can find loads of videos on social media of parents trying to understand Common Core math problems. It’s a frustrating situation to be in, and we can all relate.
It may seem easier to just teach your child how to get the right answer the old way. But this is likely to confuse them as they go back to the classroom, and their ‘new math’, the next day. And, even though it may seem ridiculous, there are good reasons for teaching math in this new way.
Does this mean that you have to become an expert on new math? No! We’ll walk you through the basics and share some great tools to help you support your child in their new math skills.
What is Old Math?
‘Old math’ has a strong focus on rote memorization. Students would memorize many math facts and formulas for solving problems. Then they’d simply follow the rules without really understanding why they were doing what they were doing. But if it ended in the right answer, you were all good.
This old-school method is the math curriculum that most parents and teachers grew up learning. Think of memorizing your times tables or the formula for the area of a circle.
‘Old math’ methods are probably what you still use today if you need to solve a math problem. And you likely assumed that’s what your child would learn too. But in most school districts, that’s not the case.
What is New Math?
Math education has really changed over the years.
Between 2010 and 2013, a major, worldwide shift was seen in math curricula. This different approach was part of the new Common Core standards that have affected every subject and grade level from elementary school to high school.
This ‘new math’ was designed to give students a better understanding of mathematical concepts. The standards seek to create problem-solving skills and an ability to apply math concepts to real-world problems.
This means that solving math problems now looks very different. Though the answer at the end is ultimately the same as someone using old math techniques, the process is often longer and more visual.
Did you know?
If your child has a Prodigy Math Membership, you'll get access to our library of video lessons.
Made by teachers, these clips for kids explain how to solve math problems using new math methods. Homework help? Done!
See how it worksWhy did math change to Common Core?
The biggest criticism of ‘old math’ was that students didn’t really understand what they were doing. They could get to the right answer, but never fully grasped the ideas behind the arithmetic. And because of this, they struggled to apply math concepts to real-world problems.
It’s clear that kids today will need different skills to thrive in new and upcoming tech. And a big part of that is evolving how we learn about math.
In 2003, a group of mathematicians set out to build a math curriculum that works for the future. Those principles are what we now call Common Core math.
Common Core math standards aim to show students what the numbers mean and why formulas and algorithms work.
Many Common Core math practices involve visualizing problems and their solutions, either by drawing them out or using hands-on items (also called manipulatives). This helps students better understand what numbers symbolize and how and why problems are truly solved.
The need for a change in the nation’s math curriculum didn’t happen overnight. It’s been in the works for decades. As well as recognizing that new technology means that we need more math skills, research studies have shown a steady decline in the math skills of the average high school graduate.
4 Examples of New Math
Common Core standards use different strategies to help kids better understand numbers and their value.
Here are a few ways Common Core is teaching early math concepts.
Addition
Addition is the operation that’s going to be most similar to how you learned math. Students can practice adding two single-digit numbers together with a number line, boxes on a ten square, or by simply counting objects (including using their fingers).
Adding double-digit numbers is where new math strays away from older math practices.
If a student is adding together 24+35, the first step is to split the problem by place value.
So the student writes out the 10’s place numbers, adding together 20+30=50.
Then, they add the one's place values, 4+5=9.
Then they add the answers together, 50+9=59.
This new math method is likely a trick you use without even thinking about it. But it helps your child cement their understanding of place value at a much earlier age.
Subtraction
In Common Core, subtraction happens by doing addition. I know what you’re thinking…crazy, right?
But usually, addition is much easier for students than subtraction. So, Common Core math teaches them to restructure problems so they’re simpler to solve.
Our example problem will be 32-12.
Instead of lining up the numbers on top of each other, the students focus on the smaller number, in this case, 12. They add easy numbers to it until they reach the larger number, 32.
To start, they may write 12+3=15.
Then 15+5=20.
Then 20+10=30.
And finally 30+2=32.
Now that we’ve reached the larger number in the equation, we add up the second number in each of these mini-equations.
3+5+10+2=20.
And we’ve arrived at the answer, 20.
This method may seem more time-consuming, but it’s much more manageable for students. It solidifies the relationship between addition and subtraction. And students can feel more confident in their ability to add these small numbers to solve a difficult subtraction problem.
Here's another explainer below! 👇
Multiplication
Multiplication is where it starts to get more tricky. Common Core standards teach multiplication with a box method.
Before we dive into a more complex problem, have you ever sat and thought about what multiplication means?
Let’s look at the simple problem: 2×3.
Though you’ll know the answer quickly, have you ever pictured it in terms of rows and columns?
2×3 is telling you there are 2 rows of 3 objects (or 3 rows of 2 objects). And if you illustrate that, then it’s easy to see your answer — 6!
Here's an example illustration that shows 2 rows of 3 objects. The total is the same as 2×3.