I was a little taken aback last week when Catherine seemed confused by decimals. We've never formally covered them. We've encountered them in real life but sometimes that's like gathering up the ingredients but not having the recipe. Catherine might have the baking soda, flour, salt, etc. but not be sure of how they need to mixed together to make tea biscuits. I had Key to Decimals sitting on my hard drive so I decided that would be our recipe book.
Our first day Catherine did the first 10 pages of the first book. Today she did another 8. At this rate we'll be through book 1 by the end of the week! Best of all she's enjoying it and understanding it all. I think, as I alluded to in the first paragraph, she's had all the pieces but just needed a little structure to put them in order.
We'll probably go back to Singapore for awhile after Key to Decimals book 1 and then do book 2 some time in the New Year. 3 and 4 will likely wait however until we go back and finish the Key to Fraction books. However we go about it I'm darn happy that I can say we're both enjoying this.