← Home

Measuring temperature

PROCEDURAL
Mathematics›Number Representation & Place Value|Ages 10—11|ID: mt_RVK655t391

Use negative numbers in context (temperature, finance, sea level); calculate intervals across zero

Mastery Evidence

  • The temperature falls from 3°C to −5°C — what is the drop? (8 degrees)
  • Calculate the difference between a bank balance of −£120 and £350
  • Order −7, −3, 0, 2, 5 on a number line and find the interval from −7 to 5

Assessment Prompt

“If a bank account goes from −£45 to +£120, can [child] work out the total change — counting through zero to get £165?”

Prerequisites1

Show full prerequisite tree
  • Negative numbers in context hard

    Calculating intervals across zero extends Y5 negative number context

    • Negative Numbers hard

      Counting through zero is prerequisite to interpreting negative numbers in context

      • Counting Within 1,000 hard

        Counting backwards through zero extends counting backwards within 1000

        • Counting in 2s hard

          Counting to 1000 by 5s/10s/100s extends skip counting from Year 2

        • The multiples of 100 soft

          Understanding multiples of 100 supports skip counting by 100s

          • A Hundred Is Ten Tens hard

            Multiples of 100 require understanding 100 as a unit

            • A Ten Is Ten Ones hard

              100 as ten tens extends understanding of 10 as ten ones

              • The teen numbers hard

                Understanding 10 as a bundle builds on understanding teen numbers as 'a ten and some ones'

                • How Many in Total? hard

                  Understanding tens-and-ones composition requires cardinality — knowing numbers represent quantities

                  • One-to-one counting hard

                    Cardinality principle builds on one-to-one correspondence — you must count correctly to know the last number tells 'how many'

                • Reading and writing numbers to 20 hard

                  Composing/decomposing teen numbers requires reading and writing those numerals

                  • How Many in Total? hard

                    Reading/writing numerals 0–20 requires understanding that numerals represent quantities (cardinality)

                    • One-to-one counting hard

                      Cardinality principle builds on one-to-one correspondence — you must count correctly to know the last number tells 'how many'

                  • Writing digits 0-9 hard

                    Writing numerals requires the motor skill of forming digits 0-9 (taught in English handwriting)

            • The two digits of a two-digit number hard

              Must understand two-digit place value before extending to hundreds

              • A Ten Is Ten Ones hard

                Understanding tens and ones place value requires the concept of 10 as a bundle

                • The teen numbers hard

                  Understanding 10 as a bundle builds on understanding teen numbers as 'a ten and some ones'

                  • How Many in Total? hard

                    Understanding tens-and-ones composition requires cardinality — knowing numbers represent quantities

                    • One-to-one counting hard

                      Cardinality principle builds on one-to-one correspondence — you must count correctly to know the last number tells 'how many'

                  • Reading and writing numbers to 20 hard

                    Composing/decomposing teen numbers requires reading and writing those numerals

                    • How Many in Total? hard

                      Reading/writing numerals 0–20 requires understanding that numerals represent quantities (cardinality)

                      • One-to-one counting hard

                        Cardinality principle builds on one-to-one correspondence — you must count correctly to know the last number tells 'how many'

                    • Writing digits 0-9 hard

                      Writing numerals requires the motor skill of forming digits 0-9 (taught in English handwriting)

              • The teen numbers hard

                General two-digit place value extends from understanding teen number composition

                • How Many in Total? hard

                  Understanding tens-and-ones composition requires cardinality — knowing numbers represent quantities

                  • One-to-one counting hard

                    Cardinality principle builds on one-to-one correspondence — you must count correctly to know the last number tells 'how many'

                • Reading and writing numbers to 20 hard

                  Composing/decomposing teen numbers requires reading and writing those numerals

                  • How Many in Total? hard

                    Reading/writing numerals 0–20 requires understanding that numerals represent quantities (cardinality)

                    • One-to-one counting hard

                      Cardinality principle builds on one-to-one correspondence — you must count correctly to know the last number tells 'how many'

                  • Writing digits 0-9 hard

                    Writing numerals requires the motor skill of forming digits 0-9 (taught in English handwriting)

Unlocks5