David Petersen

@calcdave

A fisher of minds for math in the Columbus area.

Ohio, USA
Joined September 2009
1,207 Photos and videos Photos and videos

Tweets

@calcdave is blocked

Are you sure you want to view these Tweets? Viewing Tweets won't unblock @calcdave.

  1. Aug 30

    Welcome to the 4th Grade.

    1 like
  2. Aug 26

    Me with one of my sisters looking straight out of circa 1985

    9 likes
  3. Aug 25

    Found 's clip.

    1 retweet 2 likes
  4. Aug 25

    There are three types of student question. Acknowledge two. Answer one.

    196 retweets 232 likes
  5. Aug 24

    Thanks for the locally grown corn and all the food tonight!

    1 retweet 6 likes
  6. Aug 24

    Earth-mass planet found in habitable zone around

    2,046 retweets 1,930 likes
  7. Aug 23

    .

    ’s neuroscience dept. expands with the addition of a new endowed professorship
    7 likes
  8. Aug 23

    .

    Excited the Petersen Lab will be opening at Kenyon College this fall! Who wants to let zebrafish teach them about neural development?
  9. Aug 21

    Sometimes you scream at fish to let them know who's boss. 🐠🐟🐡…

    1 retweet 5 likes
  10. Aug 21

    That NY and MA number exits sequentially and not by mile markers is annoying. How far is it?

    1 retweet 4 likes
  11. Aug 19

    What if El was really just Three and they were using binary numbering?

    1 retweet 2 likes
  12. Aug 17

    I love how most Olympic events are I'M FASTER/STRONGER/WILL BEAT YOU UP/WILL STAB YOU but synchronized swimming is about being friends

    23 retweets 81 likes
  13. Aug 18

    Absolutely - my school prepared me for success, but not for failure. If you don't fail, you're not pushing yourself.

    It's a good day to remember that literally everyone has an invisible list of failures:
    7 retweets 8 likes
  14. David Petersen followed , , and 5 others
    • PLMVKC
      @PLMVKC

      The Public Library of Mount Vernon and Knox County 201 N. Mulberry Street Mount Vernon, OH 43050 (740) 392-BOOK

    • Mount Vernon News
      @mountvernonnews

      Serving Knox County, Ohio and surrounding areas. We post videos, images and stories.

  15. Aug 16

    Found it! From thanks and !

    4 retweets 4 likes
  16. Aug 11

    $33.3333333333333333 a year.

    LeBron James has agreed to a 3-year, $100 contract with the Cavs, sources told ESPN
    1 retweet 1 like
  17. Aug 11

    Did you know...speed limit signs are 8 feet tall!! Stop lights are 4 feet!

    1 retweet 5 likes
  18. Aug 11

    There's no place like home (wi-fi). PS It's really too bad the ocean doesn't have good signal so I can work on the beach.

    2 likes
  19. Aug 7

    Shapes Club!

  20. Aug 6

    Tooka tour of a NOAA boat today and saw these on the bridge

    3 likes

@calcdave hasn't tweeted yet.

Loading seems to be taking a while.

Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

    You may also like

    ·