This video demonstrates how to use the set model to subtract fractions with unlike denominators. Students need to have the prerequisite conceptual knowledge of finding like denominators before they can apply subtraction strategies to fractions with unlike denominators.
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This video demonstrates how to use fraction tiles to subtract fractions. If students are subtracting fractions with unlike denominators, they can also practice finding the difference between the fractions or comparing the fractions for solution.
This video demonstrates how to use fraction circles to subtract fractions. If students are subtracting fractions with unlike denominators, they can practice finding the difference between the fractions by comparing or taking away the fractions for solution.
This video demonstrates how to use fraction tiles to model fraction addition and subtraction concepts.
This video demonstrates how to use fraction circles to add fractions. If students are adding fractions with unlike denominators, they can also practice finding the missing part of the whole as a solution strategy.
This video demonstrates how to use fraction tiles to add fractions. Fraction tiles easily allow students to practice adding fractions of like or unlike denominators. Students should be familiar with the concept of mixed numbers or improper fractions before using fraction tiles to add fractions that will equal a fraction greater than 1.
This video demonstrates how to use fraction tiles to convert mixed numbers to improper fractions. As students practice this process with fraction tiles, they will also gain fluency with determining different fractions that are equivalent to 1.
This video demonstrates how to use the lattice division strategy. The lattice division strategy eliminates the requirement to use automatic recall of facts, such as in the partial quotient strategy, but this strategy requires that students follow a very specific set of steps. Careful use of the lattice is required. The lattice strategy partitions numbers into smaller parts and it may not be an efficient strategy for students to use if they do not understand how division works. To use this strategy, students should have a solid understanding of place value and dividing large quantities in equal groups.
This series of videos provides brief instructional examples for supporting students who need intensive instruction in the area of fractions. Within college- and career-ready standards fractions are typically taught in Grades 3-5. Developing an understanding of fractions as numbers includes part/whole relationship, number on the number line, equivalent fractions, whole numbers as fractions, and comparing fractions These videos may be used as these concepts are introduced, or with students in higher grade levels who continue to struggle with the concepts. Special education teachers, math interventionists, and others working with struggling students may find these videos helpful.
This video illustrates the use of manipulatives to help students develop understanding of the base-10 system.