day 107: Wrapping up the trigonometry pile up

I planned to allow 10 minutes for students to ask questions & make progress on the triangle pile up. They make everything into such a big deal. After a reassuring talk about how I am confident that they have a lot of tools in their math bag of tricks, students did realize they could do this. I pointed out and we discussed Standards of Math Practice 1, 5 & 6. I’m excited to learn that “tools” refers to math skills in addition to physical and virtual items (trig & Pythagorean theorem, for examples).

I had a student ask me why we were doing this and that this is not something that would occur in “real life.” I responded that the task itself is not the goal, but persistence, precision & practice using tools were the real objectives. Their reply was “Oh, that makes sense” and they got to work!

Once they were sold and digging in, they really got on a roll. I couldn’t stop them to move on to another activity, it was just so beautiful to see them patiently working.

2014-02-25 09.29.33 2014-02-25 10.41.23

[update 4/24: It appears that folks are coming to this site to find the solution to the trig pile up. I want to make sure you know that the colorful work of the student above has some errors and is not a correct solution. I would never post the real solution here, silly!]



6 thoughts on “day 107: Wrapping up the trigonometry pile up

  1. I used this as a group quiz for both of my ninth grade classes last week. I think it really got them thinking about precision and accuracy and also did a great job of reviewing trig ratios. Thanks for posting it!

  2. i had a few smarties get done way ahead of everyone else… One asked if he could make his own. It’s a really good challenging extension — especially the concept of giving enough info to solve but not too much.

Leave a Reply

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

You are commenting using your 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