Another day, another discussion of base ten!
Today we talked about powers of ten, and how as we have a base 10 system, each place value in our system is described by a power of ten. This means that multiplying or dividing by 10 in our system is fairly simple and straightforward. We took some notes on this:
And then we talked about how our system is actually TOO good at representing numbers. It’s so good, that we often forget just how big or how small numbers are. For example a number like 222 doesn’t look that large..
until I ask you to draw 222 dots, or make 222 tally marks.
Which is what we did next in our example book!
And what if I asked you to draw 2222 things? Yeah…no thanks.
To hit home this ideas that multiplying by 10 makes things very big very fast (exponential growth!) and that dividing by 10 makes things very small very fast, we watched this neat video about relative size in the universe:
Have a good one,
-Mr. Potter