Reading and writing numbers to 20

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

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

Reading a clock requires recognising numerals 1–12

Writing number sentences requires reading and writing numerals

Reading/writing number words requires already knowing the numeral forms

Recognising coin values requires reading numerals (1, 2, 5, 10, 20, 50)

Reading/writing numerals to 100 extends from reading/writing numerals to 20

Composing/decomposing teen numbers requires reading and writing those numerals