Fractions - Multiply a Unit Fraction by an Integer - Presentation

In a series of engaging and interactive slides, students are introduced to the concept of multiplying unit fractions by an integer. The lesson begins with a recap of what a unit fraction is, followed by examples to ensure a solid understanding of the foundational concept. Students are then presented with a variety of activities that involve visual aids such as bar models and number lines. The first activity encourages students to work out the product of a unit fraction and an integer by counting in fractions, for instance, calculating 1/4 multiplied by 3 through repeated addition of 1/4 to arrive at 3/4. This visual approach helps students grasp the concept of multiplication as repeated addition.

Further activities build on this understanding, prompting students to apply the same method to solve more complex problems with different unit fractions and integers. They use bar models to visually represent the multiplication process, which aids in conceptualising how the fractions are combined to form the product. In addition to these fluency exercises, reasoning tasks challenge students to explain and correct mistakes, such as multiplying both the numerator and denominator instead of just the numerator. The lesson also includes a reasoning task that asks whether multiplying a unit fraction by its denominator always results in one whole, reinforcing the concept with examples. Independent work and discussion questions round out the lesson, encouraging students to reflect on the similarities between multiplying and adding fractions, and to consider the effects of multiplication on the numerator and denominator.