1. Algebra 1
September 22, 2016

2. Warm Up How many seconds there are in one year (365 days)?
Ever wondered…
How many seconds there are in one year (365 days)?
You can work with a partner, try to come up with the total seconds in one year
* Extension: How many seconds old are you?

3. Ever wondered… How many seconds there are in one year (365 days)?
Warm Up
Ever wondered…
How many seconds there are in one year (365 days)?
31,536,000 seconds

4. Dimensional Analysis
Big Idea: Taking one unit, like a year, and changing it to a different unit, like seconds
Change  Dollars

5. 𝑑𝑎𝑦𝑠 𝑦𝑒𝑎𝑟
ℎ𝑜𝑢𝑟𝑠 𝑑𝑎𝑦𝑠
𝑚𝑖𝑛𝑢𝑡𝑒𝑠 ℎ𝑜𝑢𝑟𝑠
𝑠𝑒𝑐𝑜𝑛𝑑𝑠 𝑚𝑖𝑛𝑢𝑡𝑒𝑠 =
𝑠𝑒𝑐𝑜𝑛𝑑𝑠 𝑦𝑒𝑎𝑟

6. 𝟑𝟏,𝟓𝟑𝟔,𝟎𝟎𝟎 𝒔𝒆𝒄𝒐𝒏𝒅𝒔 𝒚𝒆𝒂𝒓 = 24 ℎ𝑜𝑢𝑟𝑠 𝑑𝑎𝑦 365 𝑑𝑎𝑦𝑠 𝑦𝑒𝑎𝑟 𝑠𝑒𝑐𝑜𝑛𝑑𝑠 𝑦𝑒𝑎𝑟
60 𝑚𝑖𝑛𝑢𝑡𝑒𝑠 ℎ𝑜𝑢𝑟
60 𝑠𝑒𝑐𝑜𝑛𝑑𝑠 𝑚𝑖𝑛𝑢𝑡𝑒 =
𝑠𝑒𝑐𝑜𝑛𝑑𝑠 𝑦𝑒𝑎𝑟
𝟑𝟏,𝟓𝟑𝟔,𝟎𝟎𝟎 𝒔𝒆𝒄𝒐𝒏𝒅𝒔 𝒚𝒆𝒂𝒓