A New Acronym for PBL

PBL = Prohibited by Logistics

Often, when we are presented with a new, high-quality, research-based way to promote student learning, educators identify the obstacles.  The roadblocks.  The logistics.

My response to those logistical roadblocks?  One of my favorite quotes, which I’ve found credited to Ryan Blair:

“If it is important to you, you will find a way. If not, you’ll find an excuse.”

Continue reading A New Acronym for PBL

Proving the Algorithm for Mean (Average) in Google Sheets

I am a huge spreadsheets nerd and a huge advocate of the use of spreadsheets in mathematics instruction.  If you keep an eye on my site (or Twitter feed or YouTube Channel) you’ll see plenty of my reasons why I feel this way.  Here’s one:

Spreadsheets are a great tool for proving mathematical algorithms and formulas.  In this post . . . how we can use a Google Sheet to prove the formula for the mean (which, in spreadsheet land, is known as the average).

Check out this post about finding and exploring all 3 measures of central tendency with Google Sheets.