Mathematics 1 ESO – Unit 5 FRACTIONS extra activities
1 – Watch the video on “Fractions Basics Proper Improper Mixed Song” and answer:
- a) Complete the sentences:
- “We have one delicious apple pie and _______ __________ __________ to share that pie”.
- “We divided that pie into _______ __________ __________”.
- b) What shows the denominator?
- c) What shows the numerator?
- d) When do we call a fraction “improper fraction”?
- e) When is a fraction a “mixed number”?
2 – Watch the video on “How to add and subtract fractions using the butterfly method” and answer:
- a) We draw two ovals and two antennas. What do we write next to the right antenna?
- b) What do we write next to the left antenna?
- c) We draw the body of the butterfly at the bottom. What do we write inside the body?
- d) Use the “butterfly method” to solve:
- I) 2/3 + 4/7 II) 6/5 – 3/4
3 – Watch the video on “Multiplying two fractions: example” and answer:
- a) What is the numerator of the new fraction?
- b) What is the denominator of the new fraction?
- c) Why do we divide the numerator and the denominator of the new fraction by 2?
- d) Solve: (2/6) * (3/2)
4 – Watch the video on “Dividing Fractions” and answer:
- a) What is the “reciprocal” of a fraction?
- b) How can we divide fractions by multiplication of fractions?
- c) Solve: (2/5) / (4/3)
