I write this for journalists, first year economics students, and the general (non-economist) public. Yes I'm being pedantic. But I hope it helps. I'm trying to clear up a very common confusion in how we talk about inflation.
Your car has an odometer, which measures kilometers driven. And your car has a speedometer, which measures kilometers per hour.
The CPI price level is like the odometer. It tells you how high the price level is (compared to some arbitrary base year, which is set at 100 for convenience).
The CPI inflation rate is like the speedometer. It tells you how quickly the price level is rising (usually per year).
[OK, assume your car is a vertical rocket ship, or at least pointing uphill, if that helps. And the CPI is just the price of a basket of goods, so it averages out the prices of the individual goods.]
The only difference is that Statistics Canada only checks the odometer once a month. And the speedometer (usually) measures how many kilometers traveled per year, compared to the same month last year (so they don't have to worry about seasonal adjustment). And the speedometer can record a negative speed, which means the car is going in reverse and the odometer is going backwards (remember Ferris Bueller?)
If you say "the Consumer Price Index (CPI) rose by 1.2% in November, compared to 0.9% in October and 1% in September" that actually means something quite different from what you probably think it means or meant to say. [That's an actual quote from a UK newspaper, except I have substituted the actual 1.2% for the 1.1% economists had predicted.]
If you take that quote literally, it means that the price level was [a little more than] 3.1% higher in November 2016 than in August 2016. And if the price level rises by 3.1% every 3 months or quarter year, that means the inflation rate is [above] 12.4% per year. Which is a very high inflation rate for any non-basket case country. [Ignore the stuff in square brackets; it's just to keep the math nerds off my back, because a 10% increase followed by another 10% increase adds up to a 21% increase not 20%.]
What actually happened, and what the journalist presumably meant to say, was this:
This is the long way of writing it: "The CPI price level rose by 1.2% from November 2015 to November 2016; it rose by 0.9% from October 2015 to October 2016; it rose by 1% from September 2015 to September 2016"
This is the short way of writing it: "The 12 month CPI inflation rate was 1.2% in November, compared to 0.9% in October and 1% in September"
Inflation was low, and below the Bank of England's target.
The CPI price level rose in all three of those months, compared to the same month one year before. The 12 month CPI inflation rate did rise from October to November, but it fell from September to October.
A rising price level means the inflation rate is positive. Your car is going forward and the odometer is rising.
A rising inflation rate means the price level is rising more and more quickly. Your car is accelerating and the speedometer is rising.
A falling price level means that the inflation rate is negative. Your car is going backward and the odometer is falling. Another word for this is deflation.
A falling inflation rate means the price level is rising more and more slowly. Your car is decelerating and the speedometer is falling. Another word for this is disinflation.