Making Structure Come Alive Mathematical Practice#7

1. Making Structure Come AliveMathematical Practice#7 Matt McLeod m-mcleod1@neiu.edu

2. Mathemagic Start with the number for your birth month (1-Jan, 2-Feb, 3-Mar, etc) Multiply by 20 Add 50 to that result Multiply by 5 Add the day of your birthday CAREFUL!!! Subtract 365 Tell me your result and I will amaze you!!!

3. CCSS Standards for Mathematical Practice • MP1 – Make sense of problems and persevere in solving them • MP2 – Reason abstractly and quantitatively • MP3 – Construct viable arguments and critique the reasoning of others • MP4 – Model with mathematics • MP5 – Use appropriate tools strategically • MP6 – Attend to precision • MP7 – Look for and make use of structure • MP8 – Look for and express regularity in repeated reasoning

4. CCSS Standards for Mathematical Practice • MP1 – Make sense of problems and persevere in solving them • MP2 – Reason abstractly and quantitatively • MP3 – Construct viable arguments and critique the reasoning of others • MP4 – Model with mathematics • MP5 – Use appropriate tools strategically • MP6 – Attend to precision • MP7 – Look for and make use of structure • MP8 – Look for and express regularity in repeated reasoning

5. Let’s do some math Write as many forms of 9/25 as you can think of… Which one is the best form?

6. Balancing Act

7. Let’s do some math Find the activity sheet on your table Work the problems, paying careful attention to your approach Look for and (try to) make use of the structure of the problems Any volunteers to show your solution process?

8. What did we learn? Think – of one thing you plan to take back to your students Pair – turn to your elbow partner and tell him/her that one thing Share – share with the rest of us… no secrets!!!