Study Skills Worksheet: Interleaving

Exam preparation lesson 11: Interleaving (mixed practice) · Set 250 · 40 questions

Study tip (Mix it up): Interleaving: mixed sets, old and new topics together, switching topic each question. Blocked: one type, page by page. Read each question for clues: “%” → percentage; “m by m” or tiles → area; “a : b” → ratio; 3/4 → fractions. Block when first learning; mix for revision and exam practice.

1. 1.True or false: “old and new topics mixed” is blocked practice (one type only). (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) one chapter’s sums only (b) one formula, 20 times (c) only fraction sums (d) a shuffled set of sums
3. 3.🔀 Interleaving or blocked practice: old and new topics mixed? (a) interleaving (b) blocked practice
4. 4.True or false: “How many 1 m square tiles cover a 3 m by 6 m patio?” needs the ratio method. (a) True (b) False
5. 5.🔀 Mixed practice can feel harder at first. That is… (a) a waste of time (b) normal and useful (c) bad for learning (d) a sign to stop
6. 6.True or false: “one chapter’s sums only” is interleaving (mixed practice). (a) True (b) False
7. 7.True or false: “a shuffled set of sums” is blocked practice (one type only). (a) True (b) False
8. 8.🔀 Mixed practice: which method does this question need? Find the space inside a square of side 7 cm. (a) fractions (b) percentage (c) ratio (d) area
9. 9.True or false: “What is 3/4 + 1/8?” needs the fractions method. (a) False (b) True
10. 10.True or false: “switching topic each sum” is blocked practice (one type only). (a) False (b) True
11. 11.True or false: “Mix juice and water 2 : 3. How much water for 4 cups of juice?” needs the ratio method. (a) False (b) True
12. 12.🔀 When is blocked practice useful? (a) never at all (b) the night before exams (c) for every revision (d) when first learning
13. 13.True or false: “one topic all evening” is interleaving (mixed practice). (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) old and new topics mixed (b) algebra and area mixed (c) switching topic each sum (d) one topic all evening
15. 15.🔀 Why does mixed practice help in exams? (a) it needs no thinking (b) it is shorter (c) it skips topics (d) you practise choosing
16. 16.🔍 Which is the odd one out? (a) one topic all evening (b) one formula, 20 times (c) a mixed revision quiz (d) only fraction sums
17. 17.True or false: “A room is 4 m by 5 m. How much floor is there?” needs the percentage method. (a) True (b) False
18. 18.🔀 Mixed practice: which method does this question need? Find 20% of 150. (a) fractions (b) percentage (c) ratio (d) area
19. 19.True or false: “only fraction sums” is interleaving (mixed practice). (a) False (b) True
20. 20.True or false: “Order 2/3, 3/5 and 1/2 from smallest.” needs the fractions method. (a) True (b) False
21. 21.True or false: “switching topic each sum” is interleaving (mixed practice). (a) False (b) True
22. 22.🔀 Mixed practice: which method does this question need? Share ₹60 between two friends in the ratio 1 : 2. (a) area (b) ratio (c) percentage (d) fractions
23. 23.True or false: “A room is 4 m by 5 m. How much floor is there?” needs the ratio method. (a) True (b) False
24. 24.🔀 Interleaving or blocked practice: all area sums together? (a) blocked practice (b) interleaving
25. 25.Which of these is interleaving (mixed practice)? (a) one formula, 20 times (b) a shuffled set of sums (c) same type, page by page (d) one chapter’s sums only
26. 26.🔀 Interleaving means… (a) reading only (b) mixing different topics (c) one topic for weeks (d) skipping hard topics
27. 27.🔀 Mixed practice: which method does this question need? What is 15 out of 60 as a per cent? (a) fractions (b) percentage (c) ratio (d) area
28. 28.🔍 Which is the odd one out? (a) same type, page by page (b) only fraction sums (c) one formula, 20 times (d) old and new topics mixed
29. 29.True or false: “What is 15 out of 60 as a per cent?” needs the percentage method. (a) True (b) False
30. 30.True or false: “How many 1 m square tiles cover a 3 m by 6 m patio?” needs the fractions method. (a) False (b) True
31. 31.True or false: “Find 20% of 150.” needs the percentage method. (a) False (b) True
32. 32.True or false: “Find the space inside a square of side 7 cm.” needs the percentage method. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) fraction, %, ratio mixed (b) one chapter’s sums only (c) one topic all evening (d) same type, page by page
34. 34.🔍 Which is the odd one out? (a) only fraction sums (b) one chapter’s sums only (c) one topic all evening (d) switching topic each sum
35. 35.True or false: “A shirt costs ₹400 with 10% off. Find the discount.” needs the percentage method. (a) False (b) True
36. 36.True or false: “Half a cake was eaten, then a quarter of the rest. What part was eaten?” needs the ratio method. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) only fraction sums (b) a shuffled set of sums (c) old and new topics mixed (d) switching topic each sum
38. 38.True or false: “Share ₹60 between two friends in the ratio 1 : 2.” needs the percentage method. (a) False (b) True
39. 39.🔀 Mixed practice: which method does this question need? A room is 4 m by 5 m. How much floor is there? (a) fractions (b) percentage (c) area (d) ratio
40. 40.True or false: “Boys to girls is 3 : 4 in a class of 28. How many girls?” needs the fractions method. (a) True (b) False

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