Activities to Teach Students to Subtract Fractions With Unlike Denominators Using Models
As a fundamental skill in mathematics, subtracting fractions with unlike denominators can be quite challenging for students in the early grades. This is because the concept requires a solid understanding of fractions and how they work. While some students might find it easy to solve different types of mathematical problems, others may need extra help to comprehend fractions.
Fortunately, using visual models to teach fractions subtraction can bring a lot of clarity and simplicity to students who may find it difficult to grasp the concept. This article will explore activities that teachers can use to teach students how to subtract fractions with unlike denominators using models.
1. Fraction Bars
Using fraction bars is an excellent method for teaching students to subtract fractions with different denominators. Here, the teacher provides children with sets of fraction bars with varying colors to help them understand the concept of subtracting fractions. For instance, if you want to teach them to subtract 2/5 from 3/7, you can use a fraction bar of five pieces and a fraction bar with seven parts, then color the two bars differently. The children can then use the fraction bar to subtract the fraction from each other, shading the parts they need to find the answer.
2. Fraction Circles
Teachers can help students learn to subtract fractions with unlike denominators by using fraction circles as aids. Each fraction circle is divided into sections with different color codes. Here, teachers can teach students how to subtract different fractions by using a fraction circle. For instance, to illustrate the subtraction of 1/4 from 2/3, the teacher can provide the students with a circle of three parts and a circle of four parts, both with different colors. This way, the same steps apply to subtracting fractions on fraction bars; the kids will shade the respective parts and then get the answer.
3. Fraction Tiles
Fraction tiles are usually square shapes or tiles with dividers that create fractional units. Teachers can use various colors of tiles to differentiate different unit fractions. The teacher can then give children fraction tiles that help them learn how to subtract fractions with different denominators. The students can then use the tiles to subtract one fraction from another, just like they would when using bars or circles.
In conclusion, teaching students how to subtract fractions with unlike denominators can be a challenging task, but it can also be an enjoyable learning experience if implemented with appropriate visual aids. For educators, selecting the right visual aids to introduce the concept of decimals subtraction can make learning fun and memorable, and ultimately help students master the concept. By using fraction bars, circles, and tiles, teachers can help students learn at their own pace, which boosts their confidence and receptive skills.