## Wednesday, 10 December 2014

### Holiday Homeschool - Roman Numbers Game

I created a hands-on math game for the girls this week.

I took three pennies (I), a five pence piece (V), three ten pence pieces (X), one fifty pence (L) and three pound coins (C) and stuck a sticker on each with the corresponding Roman numeral (you only need one five pence and one fifty pence because you never have more than one V or L consecutively.
You have three of the others as you don't need more than three consecutive I's, X's or C's when writing Roman numbers)

After a quick recap of the rules.

1. C can only be subtracted from D or M
2. Only I, X, C and M can be subtracted - V, L and D cannot
3. I can only be subtracted from V or X
4. X can only be subtracted from L or C

I called out various numbers for the girls to 'create' - here Lilly is creating 37.

They finished by writing up the rules, drawing around the coins and making posters. All except for Rose who decided to stick the actual coins down.

cheat sheet
1=I
2=II
3=III
4=IV
5=V
6=VI
7=VII
8=VIII
9=IX
10=X
20=XX
30=XXX
40=XL
50=L
60=LX
70=LXX
80=LXXX
90=XC
100=C
500=D
1000=M

#### 1 comment:

Susana Galli said...

You are in the UK, right? Before I came to this post I read somewhere "Home ed" instead of homeschool and thought so. Then I came to the home page and seen the money and got my answer. It's great to see a website of so many activities from the UK!