This week was one of the most challenging weeks of math ten so far. Full of new concepts and easy to fall behind. But it was also a big time for learning, completely new things. The most interesting things I learned this week was conversions. There are 2 ways to do this, either with the number line or multiplying the fractions. First, the number line. The sentence I use to remember all of the symbols is (Good Man king henry doesn’t usually drink chocolate milk usually never). All of these letters stand for a prefix, for example k stands for kilo and c stands for centi. The k,h,da,u,d,c,m all are just one apart on the number line and the 2 on either side, G M and n u, are 3 apart. You can use this just like you would a number line. Say you want to find how many cm are in a km. you want to only look at the first letter, the prefix. So you start at the first one, k, and then count how many spaces till you arrive at c, making sure to remember what way you are going, in this case it would be to the right. So you are moving the decimal 5 spaces to the right.
* something to note* if a letter is alone it starts at U because it has no prefix so it it just a unit // example 1000ml to L move on the number line from m to U.
The second way to do conversions is my multiplying fractions. The main idea for this is to get cancel out the units. For example, your trying to convert 3ft and 11 inches to inches. First you need to establish what you know. I know that there are 12inches in a foot. So you add it into a fraction, putting the ft on opposite sides of the fraction so they cancel out leaving you with only inches. Don’t forget to add the remaining 11 inches at the end!
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