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Saturday, November 3, 2018

NCTM - Kansas City Reflection


I thrilled to say that today I achieved a professional goal that I had set for myself back in the summer of 2015.  Today I presented at the NCTM regional conference in Kansas City.


As I sit here tonight, I wanted to take a moment to reflect and record my thoughts much like Jennifer Fairbanks did a few weeks ago.  I found Jennifer’s reflection and tips very helpful when preparing for this conference, so thank you Jennifer.  People helping people…

The realization that I might actually be a quality presenter at an NCTM conference came to last October when I attended the NCTM regional in Orlando.  It was there where I gained the confidence and motivation to take action toward being a presenter.  I attended a couple of sessions put on by Desmos Fellows and saw how powerful their presentations were.  I knew I could present something on Desmos and it would be helpful to whoever attended.  I noticed that Kansas City was hosting a regional conference this year.  Kansas City is a short 6 hour drive from Brookings; I knew I wouldn’t find an NCTM regional conference much closer anytime soon.

When the session proposal window opened, there was a lot of buzz in the Desmos Slack about people planning to attend the three regional conferences this fall.  Fellow Jessica Breur (@BreurBreur) and I agreed to present together and we decided to submit two proposals, with our fingers crossed at least one would be accepted. 

One proposal, “Facilitating Productive Classroom Conversations with Desmos Activities,” was approved.  I shared the news with Jessica and we were excited. 

Jessica and I have both presented a number of times and various conferences on this topic.  We both had same idea of how the session should run.  I need to give Jessica a lot of credit for taking the lead on the planning and preparation.  We used an older presentation of hers as our starting point and made appropriate adjustments to fit our needs.  On the eve of our presentation, we met after dinner to practice and made final tweaks.



Our presentation was scheduled for 9:45 am this morning.  I arrived at the room plenty early.  Jessica arrived a few minutes later.  Once the session before ours ended, we headed into the room and set up.  Jessica connected her computer to my phone’s hotspot to ensure we had strong WiFi for our presentation.  

Jessica and I had planned to float around the room to introduce ourselves as people started to settle in.  Our goal was to get a feel for the Desmos knowledge and experience in the room in case there was a need to adjust our presentation at all.  We correctly assumed there would be a wide variety of users in attendance.  As the room started to fill, we began to fail at our goal of introducing ourselves to everyone.  Soon every seat in the room was taken and people were being turned away at the door. 



We began our presentation with brief introductions and then jumped right into Marbleslides.  We asked participants to team up with a neighbor and to complete the activity.  We soon found out that the WiFi was going to struggle to support the 90+ users in the room.  Some people started using their phones for hotspots, while others simply tried the activity on their phones.

After about two minutes of floating around the room and seeing a lot of people struggling to get into the activity, we decided to go off script.  Our original plan was for participants to take on the role of a student and complete the activity in pairs.  Instead, I went into the activity as a student and talked them through what the students would be doing in the activity.  I also modeled what a teacher would be seeing on the dashboard and showed off some of the conversations tools.  We were able to answer a few questions from the audience before moving on.

Jessica then led the next piece focused on the Pool Border Problem.  It is such a great activity to use to generate a variety of responses.  Jessica did a superb job of demonstrating how to use Snapshots and modeled so many great teacher moves.

We then had participants play Polygraph: Quadratics for a few minutes.  While walking around the room, I could sense the enjoyment from the participants.  Polygraph is a pretty simple activity to understand and when have a room full of math teachers and ask them to play with math, the results tend to be pretty solid.

Jessica and I had a Card Sort ready to unleash if time allowed for it.  Unfortunately, largely in part thanks to the WiFi issues, we were behind schedule already and decided to bypass the Card Sort activity.

Next on our agenda was to give an overview of the teacher.desmos.com site.  Jessica handled the discussion of how to search for an activity and how to navigate around the teacher site.  I spoke on what it looks like when you go to the activity screen and how to preview an activity and generate a classroom code.  There was a lot of information presented in a short amount of time; I wish we had a bit more time to talk in more detail about those features.

Lastly, we gave participants about 10 minutes to create a Desmos account if they didn’t already have one, browse around the teacher site, and search for an activity they could take back into their classroom.  Some participants headed out the door to their next session (there were some overlapping times for sessions).  We were able to answer a lot of questions on an individual basis. 
Overall, I thought the presentation went very well.  I hope the people who attended were able to take something away from it.  I really hope those who had not heard about the Desmos activities will take a chance and use one in their classroom.  Their students will thank them if they do.

A couple of quick shout outs.  First, thanks to Joel (@joelbezaire), Hedge (@approx_normal), and Annie (@mrsforest) for attending our session and for the positive vibes on Twitter.  Second, shout out to Jessica for being a superb co-presenter.  It was great working with you.   Third, thank you to the administration at Brookings School District for supporting the professional growth of your staff and allowing me professional leave to attend these conferences.  I learn a lot while at these conferences and always bring back something new for my students.


Finally, a shout out to my wife Stephanie and my kids for allowing me to chase my dreams.  I’m no SuperDad, but I know it’s not easy when I leave town for a few days.  I love you all!



Saturday, October 6, 2018

District PD Day: Thoughts and Lingering Questions

Each year, on the first Friday in October, my school district has an all-staff professional development day.  Two years ago, David LaRose led our staff into the realm of PLCs.  After that day, all staff members were assigned to a PLC team.  Each PLC team meets once a month for 75 minutes.

[Last October, Lee Jenkins presented on continuous improvement and something called "L to J".]

This year, my district brought in Jack Baldermann to help provide more clarity and direction for our PLC teams.  Each PLC team has a designated "leader", and the PLC leaders met with Jack on Thursday afternoon to help set the stage for Friday's all-staff training.  I was part of the "leadership" team who met the Jack on Thursday.  

The two days were quite good and there is a lot stewing around in my head right now.  My takeaways:
  • PLC teams need to have NORMS, and not friendly norms that help meetings run efficiently.  Rather, norms that are serious about increasing student achievement.   Norms that call for data analysis and actions taken based on that data.
  • Standards needs need to be unpacked and essential understandings need to be identified.  Essential learning targets need to be written in student-friendly "I can..." language.  [Good news - we have already done that work with L to J.]
  • Assessments need to be aligned to learning targets and we should be tracking achievement data for each student, according to each learning target.

Mr. Baldermann shared an example of what the math department in his school had done that led to large achievement gains.  The math teachers switched to a standards-based grading system.  Hold on a second... they switched to a standards-based learning target based grading system.

I had a bit of an epiphany.  Back in 2013-14, I did my master's degree action research on standards-based grading (SBG).  I implemented a SBG for my algebra 2 classes.  I really liked the idea and concept of SBG, but struggled with two things.  A)  I had aligned my curriculum to the Common Core Standards for Mathematics, and some standards were much more vast than others.  Certain standards were ones that were covered over multiple years and classes; I never felt great about assigning a grade for those standards, knowing that there was more to the standard than what I was assessing.  B) As a high school teacher, I was still required to report an A/B/C/D/F letter grade and percentage for high school graduation and GPA purposes.  I developed a grade conversion system that took each student's standards-based scores and converted them into a percentage grade.  To be expected, the system had its flaws but I knew no other way at the time.

The epiphany was this: I shouldn't use a STANDARDS-based grading system, but rather a LEARNING TARGET-based system.  All of my concerns about (A) above would be removed!

The work ahead will be challenging and time-consuming.  But I am excited to dip my toe back into the "learning target-based" grading system.  I really wish our professional development day was in August, before the start of the school year.  It's challenging to try to implement radical changes on the fly once the school year is underway.  This may take me a while to develop and prepare anyway.  At minimum, we will have a new system in place for next year.



I still need to write a post about the changes we made in our geometry curriculum this year.  Look for that soon! 






Tuesday, August 28, 2018

Seesaw & Flipgrid: Great tools, BUT...

My 17th year of teaching kicked off last week with a few "Back to School" days and our first full day with students on Friday.

With a district-wide push to increase student engagement and student choice, my geometry co-teacher Jarrod and I made some changes in the delivery and assessment of our curriculum.  [Expect a blog post soon highlighting some of the deeper details...]

We also have plans to integrate innovative tech tools with the goal of climbing the SAMR model in order to enhance student learning.  Two of the tech tools we plan to use this year are Seesaw and Flipgrid.

To give students an introduction to these tools, we decided to use the tools to have students introduce themselves.  In the past, as a way to get to know students, we would have students fill out the following paper:




Instead of that, this year we had students complete the following prompts in Seesaw and Flipgrid.

In Seesaw:


In Flipgrid:


We spent today getting students logged into Seesaw and Flipgrid and had them work on completing the two tasks shown above.  Our thoughts: tech integration = high; student engagement = high; student choice = low, but students will have the choice to use these tools throughout the year and need to know how to use them in case they so choose to do so.

While some students completely loved the tasks, Jarrod and I were both quite surprised at how many students were hesitant to complete these two tasks.  We had some students take their selfie of just their eyes and up while others used their descriptive words and text to cover their faces.  Some students asked if they could wait to complete the tasks at home; they wanted to think more about what they were going to say and requested a quieter setting while recording.

In hindsight, we shouldn't have been so surprised at the hesitation from so many students.  After all, we have a large number of freshmen in our classes.  This was just their second day of high school, which can be an overwhelming place.  Yes, we witness many of our students taking selfies and sending them out on Snapchat and posting to Instagram.  A major difference is that when doing that, students are sending only to those who they choose to send to, versus an entire class.

Next year, we may make a minor change to the tasks.  In Seesaw, we have it set so that a student submission does not get posted to the class journal unless we (as teachers) approve the submission.  We can simply tell students that their submissions will not be posted for all to see, only Jarrod and myself will be able to see them.  I'm not sure if there is a similar option in Flipgrid, but it is something we'll think more about next year.



Wednesday, May 23, 2018

L to J -- Year 1 Reflection

I just wrapped up my first semester of implementing a strategy called "L to J".  (Read more about how and why I implemented it here.)  It's now time to reflect back on how well or not-so-well it went.

Feedback from Students:
As part of the "Mr. Kreie Report Card" I ask students to complete (S/O to The Classroom Chef), students were asked the following question and were able to answer anonymously.

Their responses:

Further, I asked students for more open ended feedback.

Some positive quotes from students:
  • "It helped me remember stuff from early in the year and how to do things from first semester."
  • "I think it was good. The fact that we kept reviewing the same problems and slowly learning the math later in the year really helped me. Plus, once we got to our all time best that was really fun."
  • "I think it helped to review the learning targets throughout the year and that it should be used again next year."
  • "I loved it. It was a great improvement in class."
  • "I think that L to J was kinda fun. I found it a little frustrating when we didn't know the answer, but that was kinda the point. I think we should do it next year."

Some not-so-positive quotes from students:
  • "I did not really like L to J.  It got really boring."
  • "It was the biggest waste of time. Get rid of it."

And some helpful feedback from students:

  • "i liked it but i wish it only applied to the semester we were currently in"
  • "It sometimes made me feel stupid because there were somethings that i didnt know that i probable should have. it was good but not my favorite"
  • "L to J was fun but a lot of people cheat and say they get 8's, 9's, and 10's when they really get 2's, 3's and 4's. Peer pressure is a problem."
  • "You should do it again next year but find a new way of choosing questions so we don't repeat the same ones over and over. Maybe you should do it once a month instead of once a week also."


A quick note about the cheating comment:
There were times that students would see the question and be whispering to each other.  I was not very strict during these quizzes because I knew that they are not graded.  I can do better by not allowing students to converse during the quiz.  However, I feel that sometimes valuable learning can take place within those conversations.

Student Achievement:
Many students showed growth as the semester moved along.  Here are a few examples of two student's progress throughout the semester:

Student A

Student B

As you can see, student B scored a 10 the very first week.  It just so happened that in this particular student's class, all ten of the first week's questions were from the first semester.  The second week, however, a number of questions were from the second semester.  This student's scored dropped from a 10 to a 6, largely due to the randomness of the questions.


Class Achievement:
Each of my classes achieved at least one all-time best after setting the baseline during the first week.  The class shown below set only one all time best.  Two factors really influenced the goal of attaining an all-time best each week:
1)  How many students are absent the day of the quiz, and
2) What questions are selected.

Having only one student absent really hurts the chances of achieving an all-time best.  There were some days that I was missing four or five students in a given section (such as week 9 for this class).



Students did show a very strong interest in the overall achievement of the class each week and showed genuine excitement when an all-time best was attained.

The celebrations for all-time bests were a bit challenging for students to think of and agree on.  Students often tried negotiating for rewards -- extra credit, food in class, skipping homework assignments, etc.  I need to do a better job next year of selling the excitement of a celebration.

This reward that one class chose did draw some attention around school for a day...



Final Thoughts:
I did enjoy doing L to J as something new this semester and I plan to do it for the full year next year.  It took about 25 minutes do complete each week, which led to us not covering as many lessons as we have in the past.  {Some weeks we simply didn't have time to fit the quiz in, as evident in the missing weeks on the graphs above.  A few of those missing weeks were due to snow days and shortened weeks for spring break.}

I believe the benefit of the spiral review and "No Permission to Forget" outweigh the cost of skipping a few lessons along the way.  And most importantly, more than 80% of students said they liked doing L to J this year.  I think that's a pretty high success rate.











Saturday, April 28, 2018

3 ACT Tasks

As I am browsing through my previous blog posts, it appears as though I have never blogged about 3-ACT tasks.  I've been using these types of activities for the past five or six years.  I first found out about them in Dan Meyer's blog back in 2011. 

A large majority of the 3 ACT tasks I use come from Dan or Andrew Stadel (follow the links for a list of their activities).   There are quite a few really good ones to use this time of year in geometry, including Andrew's File Cabinet activity that I used in Applied Geometry class on Friday.

I don't have time to get into the fine details, but let's just say that the activity was a hit for my class of student who usually don't get too excited about doing math each day.  I wasn't fully prepared to record a video, but as we started watching Act 3, I could sense the excitement building.  Here is what I was able to record.



Needless to say, it was a fun day in class.  Thanks, Mr. Stadel, for the awesome activity!

(Last summer, I imported this 3 ACT activity into Desmos.  If you'd like the Desmos activity, here you go: 3-ACT File Cabinet Desmos.)

Tuesday, April 10, 2018

When Conceptual Understanding Fails... My Dilemma with Special Right Triangles

I started writing this blog post over a week ago and have realized that I can't give it enough attention until this summer.  So, I am going to post what I have thus far and resume this summer after a little more thought and with a little more time.

**WRITTEN OVER A WEEK AGO**
I want my students to leave geometry with a strong understanding of the two special right triangles (45-45-90 & 30-60-90).  I know that the two triangles are foundational when it comes to the unit circle and trigonometric functions & their graphs.  I also strive to connect as many concepts together in my lessons as I can; I believe those connections are critical and lead to true conceptual understanding.

This past year, here is how I approached teaching the section on special right triangles.
For the record, my learning target for these lessons are:
  • I can derive and apply the properties of special right triangles.


On day 1, students worked in pairs with their elbow partner to complete this task, which was handed out on paper:

Task: Find the length of the diagonal. 
Express answer as a decimal rounded to the nearest hundredth and a radical in simplest form.

Each group had a different side length on their square.  Groups had sides ranging from 1 to 12.  No two groups had the same square.

At the same time, I handed each student the following table on a full sheet of paper:


Students have no problems identifying the shape as a square.  Groups had very little problem finding the diagonal length.  We had reviewed how to simplify basic radical expressions the previous week, so very few groups struggled with that.  As I roamed around the room, I made sure each group had the correct answer and had found correct place to fill their answer into the table. After I confirmed their answer was correct, I invited one person from the pair to go to the Smart Board and fill in their row of the table.

As students filled in the table on the Smart Board, I asked that each student fill in the table on their paper.  After about three rows were filled in, I could hear rumblings around the room about a pattern students were seeing.  When all pairs had shared their answer, the table looked something like this:


None of my classes had more than 22 students this day, so the last row was blank each hour.  At this point, I lead a little discussion about what we're trying to derive.

I start by having students share with their partner what they think should go in the last row our table.  Again, this patterns is not hard to see, so I hear a lot of "twelve root 2" being whispered.  I call on a volunteer to share and ask to explain their thinking.

I then go to the wipe board that hangs adjacent to my Smart Board and talk briefly about what it is exactly that we're doing today.  I will draw a right isosceles triangle on the board and ask students to tell me what they know about the angles.  I then introduce the term "45-45-90 triangle".  I remind them that because each group's triangle was a 45-45-90 triangle, all of the triangles we are working with are similar via Angle-Angle.  I will put a random, much larger side length on the leg and again ask them to share with their partner what they think the length of the hypotenuse is.
Tell your partner what you think the value of x is.
Again, I hear a lot of "eighty root two" whispered between partners.

At this point, I ask for someone to summarize the relationship between the lengths of the leg and the hypotenuse.  The response I hear is "the hypotenuse is the leg times the square root of two".   I write the relationship on the board and ask students to write it on the sheet with their tables.


I will ask the group that had the leg of length 1 to share what they found for the decimal value of the hypotenuse.  They respond with "1.41".  I will mention that the rule we derived is saying that the hypotenuse is always about 1.41 times as long as the leg (on a 45-45-90 triangle).  I remind students that each group used the Pythagorean Theorem to find the value of the hypotenuse, and that they can always fall back on that process if they would happen to forget the rule we just derived.


That whole process takes about 15 minutes, which leaves about 30 minutes remaining for the next part of the lesson.

I ask groups to turn the paper with their square over and draw an isosceles right triangle on the back.  Then they are to take the value that was their square side and label the hypotenuse of their triangle the same value.  (So the group that had the square with side length of 4 from above would now have this triangle.)
Find the value of x.
Express your answer as a radical in simplest form.

I also have this table included on the back of the paper that has the previous table:


At this point, student thinking typically takes one of two paths.  Some groups will use the rule that we had previously derived and come up with this answer:


Or, they will use the Pythagorean Theorem and get something along these lines (with sometimes a little guidance):


Once again, I floated around to make sure groups are getting one of the two answers above and are filling in their table correctly.  After I confirmed their answer was correct, I invite one person from the pair to go to the Smart Board and fill in their row of the table.

Each hour, I saw a mixture of solution methods and our class table looked something like this:

Prior to this lesson, we hadn't reviewed how to rationalize the denominator.  I know students see the process briefly in algebra 1, but rarely does anyone remember it.  I took the next five minutes and led a discussion about why "simplest form" doesn't include a radical in the denominator and how we can manipulate these radical expressions and rationalize the denominator.  (There is a good explanation on coolmath.com if you're curious.)  

At the conclusion of the discussion, each hour had a table that now looked like this:

With the expressions in this form, students now had no problem detecting the pattern to our expressions.  I then ask students to generalize the patterns they see, and we arrive at the following two equations:


(Side mini-rant: When will mathematicians decide that it's okay to leave a radical in the denominator?  I vote now.  Each year I have students look at me funny when I try to sell them the idea that three root two divided by two is simpler than three divided by root 2.  The simplification rules are extremely outdated... we have calculators now if we should happen to want to find a decimal approximation of these expressions.)

This concludes the lesson.  Students have a homework assignment that I post online that isn't due for a few days later since the assignment also includes 30-60-90 triangles.

**END OF MY ORIGINAL POST**

The next day, we do a similar exercise to derive the rules for a 30-60-90 triangle.  Students get some practice working with these rules when they complete the homework, and we assess with a quiz a few days later.


Here is my dilemma and questions for the audience:


One of the quiz questions is to find the missing variables in the diagram below.  Many students did well on this question, but I had a handful of students who claimed y = 8 and x = 4 root 3.  The error the students made was they applied the wrong rule.  But what I struggle with is the idea that these same students would have done just fine with this question prior to us having our lessons on special right triangles.  We had previously learned about isosceles triangles and the Base Angle Theorem Converse.  If they were to analyze the triangle and notice that the two acute angle were congruent, they would have concluded that the legs were also congruent.  Then, with two legs known, the Pythagorean Theorem would have led them home.




It's also like the lesson clouded their thinking.  

My questions for those still reading...
1.  How would you improve the first day of this lesson?  What could I change to do better?
2.  Are there any other resources you'd recommend to use with this lesson?
3.  What other insights do you have about my dilemma?


Thanks for reading!



Friday, March 2, 2018

Guest Blogger

I just wrapped up my second guest blogger post for SDSU's Math 371: Technology for Mathematics Educators.  I wrote about how Twitter has become my Personal Learning Network.