They can also be used in class using any device. These centers are a perfect solution for those students that are doing remote learning. SAVE BIG AND BE SET FOR THE WHOLE YEAR AND PURCHASE THE BUNDLE!Īre you worried that you won't be able to do math centers this year because you are teaching virtually? These digital fourth grade math centers will allow your students to practice and review their math skills and have fun at the same time. You can grab your free cards for composing and decomposing fractions here.This set of interactive, digital google slides will engage your students and allow them to decompose a fraction into a sum of fractions with the same denominator in more than one way, recording each decomposition by an equation. Voila! All three stages of CRA in one activity. Students can record their work with a model (representational) and completed equation (abstract). I like to have students always put out the whole tile when working with fraction tiles, just to reinforce that benchmark of one. Once students have had ample practice choosing their own fractions for the addends, they can practice finding a missing addend.īe sure to provide manipulative (concrete) support for this activity. Challenge them to use fraction tiles to find as many solutions as possible. Give students a problem, like the one shown below, with two missing addends. Here’s an idea for providing students with practice composing and decomposing fractions. In other words, they are designed to help students understand that when you add fifths together, you still have fifths! The standards listed above are written to prevent that very error. So when adding fifths to fifths, they somehow magically become tenths. Īs I stated earlier, a common error students make when adding fractions is that they add both the numerators and denominators. TEKS 4.3(B) Decompose a fraction in more than one way into a sum of fractions with the same denominator using concrete and pictorial models and recording results with symbolic representations. TEKS 4.3(A) Represent a fraction a/b as a sum of fractions 1/b, where a and b are whole numbers ad b>0, including a>b. Justify decompositions, e.g., by using a visual fraction model. Let’s take a look at the standards, both the Common Core State Standards (CCSSM) and the Texas Essential Knowledge and Skills (TEKS).ĬCSSM 4.NF.3b Decompose a fraction into a sum of fractions with the same denominator in more than one way, recording each decomposition by an equation. Once I make a whole from three-fifths, I end up with one and two-fifths. That’s some deep understanding of fractions! I can decompose four-fifths into two-fifths and two-fifths. What you see above sounds more like, I know I need two more fifths to add to three-fifths to make a whole. There is no additional cost to you, and I only link to books and products that I personally use and recommend. This post contains affiliate links, which simply means that when you use my link and purchase a product, I receive a small commission. Recognizing that seven-fifths is greater than a whole, they would proceed to apply a procedure for converting an improper fraction to a mixed number. They’d add the two fractions to get a sum of seven-fifths (Hopefully! How many would say seven-tenths?). Think about how we would normally teach students to solve that problem. Take a look at this fraction addition problem. Not too long ago I wrote about the power of part/whole thinking, and how an understanding that begins in Kindergarten has tons of applications throughout the elementary curriculum.
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