The Practices in Practice Jennifer Cox Armand Larive Middle School Hermiston, OR A Sandwich? 1 – Make sense of problem & persevere in solving them What kind? From where? 2 - Reason abstractly and quantitatively Size? Number? 3 – Construct a viable argument and critique the reasoning of others • • • 4 – Model with mathematics: Ingredients Picture/Diagram 5 – Use appropriate tools strategically: App Map 6 - Attend to Precision Call ahead to confirm 7 - Look for and make use of structure Background knowledge deal? 8 – Look for and express regularity in repeated reasoning • • Noah’s ark www.fawnngyuen.com Video https://vimeo.com/103523352 https://vimeo.com/103523351 Number Talks 83 + 38 64 - 46 12 * 15 Domino Effect http://www.mathalicious.com/lessons/dominoeffect/teach 3-Act Task http://threeacts.mrmeyer.com/yellowstarbursts/ The Marshmallow Challenge ●Teams of 4 or 5 ●18 minutes ●20 sticks of spaghetti ●1 yd of masking tape ●1 yd of string ●1 marshmallow The Rules The winning team is the one that has the tallest freestanding structure measured from the floor (or top of desk) to the top of the marshmallow. The entire marshmallow needs to be on top of the structure. The team can use as many or as few of the 20 spaghetti sticks, as much or as little of the string or tape. Teams are free to break the spaghetti, cut up the tape and string to create new structures. Teams cannot hold on to the structure when time runs out. Those touching or supporting the structure at the end of the exercise will be disqualified. Any Questions? GO http://www.online-stopwatch.com/full-screenstopwatch/ Taking it to the next level Then I gave them the chance to do it again with one change. They could either have 8 mini-marshmallows They could use thicker noodles (fettuccine). They could have duck tape instead of masking They could use string instead of yarn. THANK YOU Jennifer Cox [email protected] @mrscoxey http://middlinthrumath.wordpress.com/ Resources http://middlinthrumath.wordpress.com/ http://www.sandi.net/Page/50909 http://fawnnguyen.com/ http://www.scholastic.com/teachers/top-teaching/2013/03/guide-8-mathematical-practice-standards http://threeacts.mrmeyer.com/yellowstarbursts/ http://www.mathalicious.com/lessons/domino-effect/teach http://blog.mrmeyer.com/ http://relearningtoteach.blogspot.com/ http://ispeakmath.org/2014/03/29/i-feel-so-accomplished-problem-solving-noahs-ark/