proportions and ratios

Standard

So, I was thinking about patterns, and looking for patterns, and how we always talk about patterns in math. I thought proportionality and scalability was at the basis of math – that making things bigger and smaller but retaining their relative scales, is the basis of all our modeling and exampling, and equationing. If you don’t understand proportionality, then everything else is a waste of time. (maps, drawings, plans – all useless.)

So I have been stunned that students from 9th to 11th grade have no stinking idea about proportionality. I also have found out they have no stinking idea about estimation. So there goeth the plans to move on to linear equations. I am stealing proportional ideas all over the place (if the world were a village of 100, the perfect man, 180 days of estimates…)

End of marking period, reboot.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s