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Numbers, space and change

What does the answer measure?

Multiply and divide amounts you have read as fractions and decimals. Recount a length in another unit and a duration in minutes, connecting calculations to meaning.

Begin with scaling and place value →
Revisit decimal places in the previous course →Begin with counting →

Extend the meaning of calculation

  1. 1 / 10

    Ten times and one tenth: place value

    Read the value of a digit in places from 1000 to 0.001.

  2. 2 / 10

    Decimal multiplication: part of an amount

    Interpret decimal multiplication as repetition or a fraction of an amount.

  3. 3 / 10

    Decimal division: use one group as the unit

    Understand why changing both quantities by the same factor preserves their quotient.

  4. 4 / 10

    When operations meet: grouping and order

    Distinguish the convention for operation order from grouping shown by parentheses.

Same quantities, different units

  1. 5 / 10

    Same length, different units

    Connect mm, cm, m and km as different representations of the same length.

  2. 6 / 10

    Grams and litres: convert like quantities

    Connect g with kg and mL with L, without confusing mass with volume.

Read clocks and scales

  1. 7 / 10

    Read a clock in minutes

    Read the minute intervals and the continuous movement of the hour hand.

  2. 8 / 10

    Between two times, even across midnight

    Convert times into minutes and check the day before finding elapsed time.

  3. 9 / 10

    Read between marks and report a nearby value

    Use scale intervals and rounding conventions to distinguish exact values from approximations.

Connect to a new situation

  1. 10 / 10

    Before the expression, identify the question

    Connect the requested quantity, units, operation and check in a new situation.

Skip familiar lessons or take time with the pictures. The next story is never locked behind a quiz score.