In This Issue
Twitter Math Camp 2013
Mathlets for Teaching Elementary Mathematics
Almost a Third Grader
Online PD
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Mathematics Teaching and Learning Certificate
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Twitter Math Camp 2013
http://twittermathcamp.pbworks.com/ w/page/66474056/TMC%20FrontPage
This past Sunday, TwitterMathCamp 2013 (TMC13) wrapped up on
the campus of Drexel University — the Math Forum's home! If
you missed all the fun that we hosted, start with the wiki
above for

morning sessions

presentations, afternoon sessions, and "My Favorites"

project ideas ("things that might be cool to make, build,
create or organize")

participant Twitter list
Among the participant blogs also listed on the wiki, check out
this reflection about new best friends made, shoutouts, and
"superlative awards" — illustrated with a running man zebra
and an origami fractal dragon — all inspired "because TMC13
is totally worth me stretching outside my comfort zone":
http://kalamitykat.com/2013/07/31/ relationshipsaretwittermathcamp13/
The last day alone of this selfstyled "guerrilla professional
development for math teachers" inspired 1,500 tweets, and
generated more than two million impressions. One math
education professor has since tweeted about the recent blog
post of a participating math and physics teacher, who wrote,
"OK, I'm three days out of Twitter Math Camp and my brain is so
chockfull of great things I want to implement in my class this
year, I need to write them down...."
Get in on the continuing action with the hashtag #tmc13:
https://twitter.com/search?q=%23tmc13&mode=realtime

Now taking place: math education conversation of the day

"There is one question that remains unanswered in this
Numberphile video...."

 Reinhard, posted to the sci.math discussion

http://mathforum.org/kb/message.jspa?messageID=9185928
Mathlets for Teaching Elementary Mathematics
http://www.commoncoremathlets.com/
Dave Posner recently launched a website of visual models
intended to seed elementary students' "preendowed
imaginations with images tailored to evoke patterns that are
the basis of the elementary mathematics curriculum." The
"mathlets" already available touch on the Common Core State
Standards (CCSS) category of Numbers and Operations in Base
Ten for grades K through 3:

base ten counting

base ten adding

laws of addition

train track addition
Posner welcomes comments for improving existing mathlets,
suggestions for new ones, and bug reports that detail browser
and computing platform specifications.
He let us know about commoncoremathlets.com by suggesting it to
the Internet Math Library, which today boasts some 11,000 math
and math education websites. Share your own by visiting
http://mathforum.org/library/add.html

Now taking place: math education conversation of the day

"Isn't it interesting that we had to call the state on the fact
that bivariate can be for categorical data — and then as I
look at the second module for Algebra, one of the lessons is
titled 'Summarizing Bivariate Categorical Data.'"

 Ed, posted to the secondary (grades 912) discussion group
of the Association of Math Teachers of New York State

http://mathforum.org/kb/message.jspa?messageID=9186084
Almost a Third Grader
http://www.almostathirdgrader.com/
Every weekday since their school year ended, a group of second
grade teachers in Minnesota has posted an original video
lesson to help rising third graders review what they learned
last year, and introduce them to the content of the coming
autumn. Links to selected quizzes and resources appear under
"review and challenge."
Check the lesson schedule for almostthirdgrade math topics,
which already include

comparing & ordering numbers

multiple digit subtraction

fractions

capacity

length measurement

multiple digit addition
For a more visual overview of the short clips — some narrated
by or starring children, many with prompts to "press pause to
stop and think" — visit their Pinterest pinboard:
http://pinterest.com/minimeg/ almostathirdgrader/


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