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Teach Connecting Math Concepts E (5)

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  1. Module introduction
    5 Topics
  2. Overview
    25 Topics
    |
    3 Tests
  3. Connecting CMC to Oz-e-maths
    15 Topics
    |
    2 Tests
  4. Addition number families
    22 Topics
    |
    2 Tests
  5. Multiplication number families and facts
    21 Topics
    |
    2 Tests
  6. Fractions and whole numbers
    17 Topics
    |
    2 Tests
  7. Decimal, Per cent and Geometry
    18 Topics
    |
    2 Tests
  8. Column subtraction, multiplication and division
    21 Topics
    |
    2 Tests
  9. Rounding, estimation, coefficients, inverse operations and mixed-number computations
    17 Topics
    |
    2 Tests
  10. Coordinate system and functions, ratio word problems and prime factors
    19 Topics
    |
    2 Tests
  11. Motivating students and independent work
    20 Topics
    |
    2 Tests
  12. Mastery tests
    24 Topics
    |
    2 Tests
  13. Bringing it all together
    28 Topics
    |
    2 Tests
  14. Module evaluation survey
    1 Topic
Lesson Progress
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Sequence word problems

Sequence word problems begin in lesson nineteen. In lesson twenty-six full sequence word problems begin.


The strategy students follow is to find the sentence in the problem that tells about getting more or less. The sentence has information about whether the end is the big number or a small number. The sentence also gives the first small number in the family.

The process is:

  • The teacher says, ‘You’re going to make number families for problems that tell about Start or End and work them. Write part one on your lined paper with the letters A, B and C below. Make an addition number family arrow after each letter’, and observes students and gives feedback.
  • The teacher says, ‘I’ll read problem A. Follow along and get ready to tell me the sentence that tells about getting more or less. Listen: Jan started out with some eggs. Then she gave away twenty-two eggs. Jan ended up with thirty-seven eggs. How many eggs did Jan start with? Here’s the sentence that tells about getting more or less: Then she gave away twenty-two eggs. Say the sentence that tells about getting more or less. Get ready’ and signals (auditory).
  • The teacher says, ‘Raise your hand when you know if E is the big number or a small number for Jan’ and scans students. ‘What is E?’ and signals (auditory). ‘What is S?’ and signals (auditory).
  • The teacher says, ‘What’s the number that tells how many more or less?’ and signals (auditory).
  • The teacher says, ‘Make the family for problem A with a number and E and S’ and observes students and gives feedback.
  • The teacher continues to work through the problem, guiding the students with the questions for each step.

Students have worked all parts of the problem. This is the first time they are putting all the parts together. There are a lot of steps but if the students start with what sentence tells more or less, they have the framework for a start-end problem. If students get confused or stuck, the teacher reminds them of the steps.


Turn to page 55 in CMC E Teacher’s Guide. Practise teaching lesson 26, exercise 7 with no student errors