Kendra Lockman (@klockmath) header
Kendra Lockman (@klockmath) profile picture

I teach math. I'm a parent. I like art and science. I sometimes do art and science. I have lots of opinions and lots of questions. she/her

Berkeley, CA
Joined October 2015
Photo by Kendra Lockman (@klockmath)Photo by Kendra Lockman (@klockmath)Photo by Kendra Lockman (@klockmath)Photo by Kendra Lockman (@klockmath)Photo by Kendra Lockman (@klockmath)Photo by Kendra Lockman (@klockmath)Photo by Kendra Lockman (@klockmath)Photo by Kendra Lockman (@klockmath)Photo by Kendra Lockman (@klockmath)Photo by Kendra Lockman (@klockmath)
I still haven't mastered parametric coloring in @Desmos. Anyone wanna help? I'm trying to create a graph that only graphs within a "foggy window" around a given point. desmos.com/calculator/fomdxa… #MTBoS #iteachmath
2
4
1,091
Okay, here's the thing that I was building. This is an idea that I had brewing for introducing the concept of limits. #mtbos #iteachmath desmos.com/calculator/ue1ckr…
1
118
I had long described limits to students as trying to predict where you might end up, if you were somehow traveling along a function graph and it was really foggy.
97
I made this as an exploration of geometric definitions of conics. Comments welcome. desmos.com/calculator/nfqa9m… #iteachmath #MTBoS
1
1
2
207
omgosh I just blew my own mind by "extending" the definition of an ellipse to include a 3rd point. I thought I would get something roughly akin to wrapping a string around 3 thumbtacks, but I did not.
3
2
136
btw my desmos graph was influenced by @dpscher's book Exploring Conic Sections with Sketchpad. I appreciate the encouragement to play and explore in the book, and I equally appreciate how easy it is to build (and extend) conic sections using the distance function in Desmos.
1
122
Help me #MTBoS, I haven't taught stats in years. Looking for a meaningful data set that I can use in a lesson on linear regression. any good data set resources? #iteachmath
6
2
2
1,656
This poster was hung by a math instructor in one of my classrooms. While I appreciate the quote, I wonder what message the students get from it.
1
112
I can't help thinking that someone struggling with math might read it and think, "yeah! Why am I being judged for being bad at math, when I'm not a math person?"
4
81
Kendra Lockman retweeted
A little piece I wrote for today’s i newspaper about why - I think - you don’t see more girls doing maths. In short: it’s death by a thousand cuts. inews.co.uk/opinion/hannah-f…
138
659
122
2,608
A little game of notice/wonder anyone?
1
1
Back on campus for summer classes. A few students zoomed in on the first day because they were Covid+. Now I have students asking to zoom in on a regular basis, for all sorts of reasons. I'm wondering how I feel about this, and whether my feelings can be translated into policy.
2
1
1
First day back on campus: NOTHING WORKED. I tried 4 different printers to print handouts. Nope. I had visuals on my computer as a back-up plan. Ha. My classroom only had a VGA cable and I didn't have an adapter. Eventually I gave my students links to my google drive with the
6
5
In the end, it was a good day. I've asked for a new classroom that has an HDMI cable in it and a bathroom close-by. I'm exhausted and going for a swim.
I think that my students might possibly have worried about my sanity, as I just laughed off every new thing that didn't work. There may be a perceived fine line between joyful acceptance and stark-raving-madness.
There was more, but these were the main highlights. Thankfully, I was prepared to be unprepared.
Roughly 8-ish minutes later, I looked at the wall clock and saw that not a minute had gone by. Clock is broken. Eventually I called for a 10-min break and went to the bathroom, and there was a sign that said to try the next building over.
1
handouts on them, so they used the handouts on their phones. Thanks, @cheesemonkeysf for the Talking Points Harry Potter script. Then I gave them a set of Talking Points on failure/habits of mind/learning and told them I'd give them 10 minutes. I checked the wall clock for time.
1
2