Read Roman numerals to 100 (I to C) and know that over time, the numeral system changed to include the concept of zero and place value

What this means, in plain words

Place value is the idea that a digit is worth a different amount depending on where it sits: the 4 in 40 is worth ten times the 4 in 4.

Roman numerals write numbers with letters: I, V, X, L, C, D and M.

Time work covers reading a clock, using am and pm or the 24-hour clock, and converting between seconds, minutes and hours.