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Fractions Lesson 1: Adding and Subtracting Fractions

In this lesson, students will learn how to add and subtract fractions with the same denominator. They will explore various strategies and use paper strips to solve fraction calculations. The lesson also includes visual representations and real-world applications.

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Fractions Lesson 1: Adding and Subtracting Fractions

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  1. Year 5 FractionsLesson 1Mastery SpecilaistsAmy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  2. Look at the calculations. What do you notice? Which ones are hard to solve? Why? Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  3. This is difficult to answer accurately because they are different units. We can only add together items that are the same type of unit. Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  4. I can add fractions with the same denominator. Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  5. John has of a bar of chocolate and Jane has of a bar of chocolate. How much chocolate do they have altogether? Use paper strips to find the solution. Can you explain what you have done? Can you show a calculation? Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  6. When the denominators are the same, we can add the numerators. 3 eighths + 6 eighths = 9 eighths + = What do you notice about the numerator in the answer? What do you notice about the denominator? Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  7. True or False? Simon says that + = Is Simon correct? Why? fifths + fifths = fifths Simon has eight fifths in total. Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  8. Calculate + Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  9. Application Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  10. What’s the calculation? Can you think of a number story to go with this calculation? Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  11. What’s the calculation? Can you think of a number story to go with this calculation? + + = Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  12. What’s the calculation? What fraction is the number line counting in? How do you know? What calculation is being shown? Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  13. What’s the calculation? + + + = Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  14. How many different ways can you find to solve the calculation? = + Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  15. I can subtract fractions with the same denominator. Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  16. Can you use paper strips to solve the following calculation? - = Is there more than one way of solving this calculation using paper strips? If you find one way, can you find another? Can you draw a picture? Can you explain how to do this? Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  17. Method 1 Simon uses one paper strip. He shades and then crosses out His answer is . X X X - = Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  18. Method 2 Sarah uses two paper strips. She shades on one strip. She shades on the other strip. She finds the differencebetween the two. Her answer is . Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  19. = Find the differencebetween and - Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  20. - Subtract from X X X X X X X X = Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  21. Application - = What’s the same? What’s different? - = - = Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  22. Match the calculation to the image. How do you know? + = - = + = Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

  23. Amy Stokell, Natalie Ruddell, Valda Varadinek-Skelton, Vicky Smith

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