Free Responses and Projects

Going into this school year, my intention was to resume blogging regularly. I wrote my first post back in September, but now it’s been a month and a half. My hope had been to write biweekly. Anyway, I won’t bore any readers with the reasons.

If you read my last post, my plan was to change my assessments significantly. And, so far, I have followed through on that. I have given three tests all have been made up of only Free Response Questions. The students have completed one project and will do one more before Thanksgiving. My thought right now is to give a multiple choice assessment before the end of the semester. But that will be the only one.

I just finished grading the last test and it appears that the students are getting better at answering the Free Response Questions.

The next project will be on data gathering techniques. The students, working in pairs, will have to choose a topic, create a questionnaire, devise a sampling strategy, and discuss bias. Their population will have to be found within our school so that they can select the sample and distribute their questionnaires. The questionnaires will be made online using Google Forms. The data they collect can be used for future projects or assessments.

The sixth Free Response Question on the AP Statistics exam is always a longer one called an Investigative Task. My plan is to try to set the project up in some ways like an extended investigative task. I will try to make it so that in the process of doing the project, they will have to address the same sorts of issues that might arise on an investigative task.

Anyway, that’s what’s going on for now.

A New Beginning

Last year, I started this blog as a way to journal about my experience as a first-year AP Statistics teacher. I wanted to share my experiences to help me reflect on my practices and to hopefully initiate some discussions with whomever read my blog and dared to comment. I knew that there would be other teachers out there in a similar position as I and that my posts might help them think through their own situations. I also hope experienced statistics teachers might stumble onto my blog and provide insights. In the end, the blog mostly served the first purpose, and that was fine. But, then I lost my drive to blog and I posted less regularly and then stopped altogether.

Now I begin again. I want to continue my professional development and I think blogging will be a terrific means to do that. Maybe some discussion will ensue.

Last year, I was anxious about getting through all of the material in time for the exam. To my amazement, I succeeded. Not only did my students cover every topic on the AP Statistics syllabus, but we still had two weeks to review before the exam.

However, in reflection, I do not feel my students were served best by zooming through the material. A few of them did tell me that they liked that we covered all the material (and finished the entire book). But depth of understanding was sacrificed for breadth and I hated that.

The students' results on the exam also suggested that some changes needed to be made. The students took a mock AP exam as their spring final exam two weeks before the actual AP exam. Based on their performance on that exam and based on their work all year long, I had expected them to score a bit higher. But, when I think about how hard they worked, and how some of them did not work too hard, I wasn't altogether surprised. Those who did the best had the best work ethic. Those who succumbed to senioritis largely did not pass.

This year, one change I am planning is to not worry about covering every single topic on the syllabus. I teach at an independent school (polite speak for private school) and we have only around 140 teaching days, I think, before the exam. My plan is cover 80-90% of the material, but to go into greater depth. The instructions on the AP exam itself state that they do not expect students to know everything. My class looked at scoring and were surprised to learn that you could get 50% of the multiple choice items wrong and still have a very good chance of scoring a 4 or 5.

Another change is that I am not going to give them very many multiple choice assessments. Last year, I gave the students 10 multiple choice items on every test and they had about 11 tests. And then they had 40 more multiple choice items on the mock exam. But I don't think one needs to practice multiple choice tests. Certainly not to the extent that I did last year. And I detest multiple choice items. So, I plan to give them the 40 problems on the mock exam and then maybe two other multiple choice assessments. That's it.

A third change is that I am going to incorporate more project work this year. When I have taught non-AP Statistics, I have always taught it purely project-based as I feel this is the best way to learn the material and the best way for me to evaluate their understanding. It feels more authentic and it removes test anxiety and the time constraints of tests. I will likely write an entire post on projects later.

But now, I must rest.

Thanks for reading.

Blackjack or Bust

Over three weeks in to the second semester and, unsurprisingly, the seniors in my AP Statistics course are finding it harder and harder to get motivated to do school. That means it’s time for some blackjack.

At Tuesday’s evening class, we dealt some cards, made some bets, and recorded lots of data. I have done a blackjack project several times now and it always grabs the students’ attention and interest. Some students learn the game for the first time while others learn the finer points such as splitting and doubling down. But all enjoy watching their piles of chips go up and down.

While they play, the students record such things as card values, number of hits, wins, losses, pushes, and busts. In groups, the students will then use the data to create their own examples that are meant to illustrate the various probability concepts we have studied thus far. These topics include conditional probability and independence, random variables, the binomial and geometric distributions, and sampling distributions. The groups are tasked with teaching their topics to their classmates. As a part of their presentation, a group will also provide a sample problem for everyone to try to solve.

I have come to strongly value students taking over class and teaching their peers. Explaining the intricacies of challenging mathematical ideas is not easy. And many students have anxiety about speaking in front of the class. But it is so worth it. From my experiences with these student presentations, I have seen my students gain deep understanding of the topics and I think the students appreciate having class led by someone other than their teacher. After reading Jo Boaler’s book, Mathematical Mindsets, I now know that research has shown that explaining work to others creates deep learning.

In addition to the presentation, students have the opportunity to collaborate with others. Group work is another prominent part of my classes. I think my favorite classes are when each group is humming along, discussing ideas, solving problems, checking each other’s answers, and helping one another increase their mathematical knowledge. It provides opportunities for students to explain ideas in a small group setting that might be easier than in front of the whole class. Once again Dr. Boaler notes in her book that the research backs the practice.

The project will give the students the opportunity to review many different ideas. I like the idea of doing review now, even though a little more than three months still remain before the AP exam. I want my students to engage with the material as many times as they can before May. I think it’s a bit silly to think that a student can really learn and understand a concept the first time they see it. The more times they try to reason through a binomial distribution problem, the more familiar they will become with the idea. I have taught random variables ten times now, and I am better this year with them than I was last year.

Finally, projects are such a refreshing change from the in-class timed tests. I like that my students get a chance to show what they know in a much different setting. They are not sitting, working alone, trying to remember when to use which formula. Rather, they are up, working with others, and they can look up information in their books, in their notes, and even on the internet. They can meet with me to talk about their project. The students can choose to spend many hours in preparation so that they can produce exactly the quality of project they want. I am going to try to see if I can test less next year and still prepare my students well for the AP exam. I believe it can be done. Do you? Anybody out there teach project-based AP Statistics course? I would love to hear about your experiences.

Halfway there... a self-evaluation

My greatest concern going into this school year was to effectively teach AP Statistics. Though I have been teaching statistics for ten years, I had never taught AP before and I was worried about pacing and the quality of the lessons and assignments. I was worried about sacrificing pedagogical beliefs for the sake of getting through the syllabus in time and preparing students for the format of the test.

The course is going better than I had hoped. I greatly value projects in lieu of tests. Whereas a test is completed in a set amount of time, contains closed questions, and is done individually, a project is done over a number of days where students can choose how much time to spend on it, is more open-ended, and is done in a group of 2-4 students. Tests have very little value in helping students improve on their knowledge and are limited in their ability how much information they provide regarding what a student knows. Projects can help a student to better understand material and are provide richer information about what a student can or cannot do. My non-AP Statistics course was always completely project-based. I wanted to carry over as much as I could from the non-AP course into my AP course, but I feared the pace would make this difficult. I was optimistic that I could incorporate two projects this year. Happily, the students were able to complete two projects in the first semester alone. I now expect them to complete two more in the second semester at least.

The pace has been fine. While I am going faster than I ever did in my non-AP course, the pace has not been so fast that students are being left behind. The faster pace requires students to be more self-motivated, but, maybe because it carries the AP designation, students have been up to the challenge. Also, I have been able to adjust the pace at times based on feedback from my students. I had concerns that there would not be enough flexibility to adjust the pace mid-semester. But there proved to be more flexibility than I had anticipated.

Back in August, I started this blog regarding my teaching of AP Statistics. I am happy with how blogging has gone. This makes post number fourteen. Though my audience is quite limited, people have been at least clicking on the blog links I share on Twitter. One Twitter user even added one of my blog posts to the Math Education Daily and that particular post had a lot more page clicks. Blogging has allowed me frequent opportunities to reflect on my teaching and that alone has helped me to design a better course. It has provided little so far in professional discourse. I hope to get back to blogging weekly and I hope that my regularity can increase the chances of future discussions about my posts. I have engaged in a couple Twitter discussions with other math teachers. I would like to do more of that going forward.

[Regarding Twitter, I very much want to participate in Twitter Stats Chat. This is definitely a goal of mine. I have yet to figure out how to do that. I know the hashtag (#statschat) and I know that it starts at 6 pm (Pacific Time) on Tuesdays. I have TweetDeck set up for #statschat. But I never see a bunch of posts starting at the specified time in my feed. Grumble.]

In looking over the various assessments I have designed for my AP Statistics students, I am very pleased with the progress they are making. The projects and tests show that they are learning the material at an acceptable rate. Predictably, the multiple choice items have been the least helpful. I do not like such test questions. I have felt compelled to include ten with each chapter test so as to better prepare the students for the AP exam which will contain forty multiple choice questions. However, I am questioning how much practice students really need with such types of questions. This re-evaluation has partly been fueled by Jo Boaler’s book, Mathematical Mindsets, which I am almost done reading. In the book, Dr. Boaler presents research that affirms my views that students do not need practice for standardized tests. Rather, students can actually perform better on standardized tests if they have learned to be confident mathematical problem solvers. For the next chapter test, I have included ten multiple choice questions. But, I have made one adjustment that was suggested by a Twitter user: students can designate a first-choice answer and a second-choice answer. A correct first-choice answer earns two points while a second-choice answer earns one point. However, I think I will include more short answer questions and fewer multiple choice questions on future tests.

The Weekly Menu

This semester, I have started serving something new in AP Statistics: the Weekly Menu. (Click here to see the Weekly Menu for this week.)

After each class meeting, the Chefs du Jour are expected to add one note taken from class. That note can be anything the student thinks is useful or important to remember. Other students in the class can see the notes posted by their classmates and add to them or even edit them. The Topics du Jour and the SMART Board notes for the day are also posted.

One goal of the Weekly Menu is to get students more invested and active in their learning. I am currently reading Jo Boaler’s book, Mathematical Mindsets, and it inspired me to be more intentional in trying to develop student self-awareness and responsibility. Dr. Boaler outlines Assessment for Learning (page 149 of this book) which “teaches students responsibility for their own learning.” I hope that by assigning some responsibility to students to fill in the document, they will take greater ownership of the course. There is also a level of peer accountability since all students will see what the Chefs have or have not added to the document.

Another goal of the Weekly Menu is to provide students the opportunity to reflect more often on what has been covered in class and what they should be learning.

Additionally, I am hopeful the Weekly Menu will serve as a good review tool. They can use it to review for tests and even for the final exam and AP exam. We will also use it to review what we did the previous day and use it to transition to the next topic.

Students can also use the Weekly Menu as another way to see what is coming up that week. And, if they miss class, the Weekly Menu can get an idea of what happened in class that day.

So far, the feedback I have gotten from students has been somewhat positive. We are only on the second week, so it is still in its infancy. Colleagues of mine like the idea, but ultimately it is meant to be a tool to help students, so it is their opinion that I will value most.

The search for a grade

The first semester at my school ends tomorrow. We do not have semester exams. Some AP teachers at my school give an exam in the evening. I chose not to. I think the main reason my colleagues opt to give an exam is to give the students the experience of sitting through an extended test in order to prepare them for the exam in May.

I am confident that all of  my students have sat a 3-hour exam once before. All but one were students at my school last spring, and they sat final exams at that time.  Therefore, I don't feel the need to give them a long test.

I do want them to be frequently reviewing and revisiting previous topics. So, I am giving them three Free Response Questions that cover the first four chapters. But, those three questions will not combine to form some large percentage of their semester average.

After today, my students will have been graded on 13 free response questions. Two of them were of the Investigative Task variety (that is, Free Response Question #6 from past exams). The others were either taken directly from past exams or were in that style. I am dropping their lowest two scores.

My assessments in AP Statistics this semester have mostly been a departure from how I have evolved otherwise. I have another (dormant) blog regarding my thoughts on assessments and evaluation. My tenth grade integrated mathematics course has zero period-long tests. I have given homework quizzes. But, in that class, grades are largely calculated from projects and presentations. I believe these forms of assessment give me the best indication of what a student can do and knows.

My AP Statistics have completed two projects this semester and they account for a large portion of their grade. I think the projects have given the students a worthwhile opportunity to engage meaningfully with the course topics and skills in a way that will prepare them for the exam. But, I think they also help the students see the utility and relevance of the topics beyond the AP exam. And, I think they provide me with a much better insight into what the students really understand and their abilities to apply the methods they have been studying.

I dislike multiple choice items a lot. (I wrote about this dislike in this blog here and here.) I do not think they are fair nor do I think they tell me much about what a student understands. Perhaps, in a 40-item multiple choice exam, they give a better picture. The larger number of items reduces the chance that a score is based largely on lucky guesses and increases its probability of being due to a student's understanding.

The free response questions are better, but still contrived as they must fit into an arbitrary allotted amount of time and they are written in a way that takes much of the decision-making away from the student.

I do wonder if I could teach a project-based AP Statistics class and still prepare my students for the big, bad AP exam. Seems possible. I guess I have my goal for next year's course.

Anybody have experience teaching AP Statistics as a project-based course? I would love to read about your experiences, recommendations, ideas, and thoughts.

Projections and Senioritis

I had hoped to write weekly. I did that for nine weeks. Then, I lost momentum. I'm not sure why, but I expect it's not all that uncommon for new teaching blogs. You start out with a lot of enthusiasm, some good ideas to write about, and you're not too overloaded with work. Then steam runs out, work piles up, and ideas don't seem so fresh.

Tuesday is my blogging day. It says so on my calendar. I even have my calendar send me a nice email to remind me of that. Here it is Wednesday and I have not written a blog post since November 3. A month. And so, even though I am writing this without much of an idea of what I will write, I push the keys on my laptop hoping something worthwhile will end up coming out of this post.

My blogging statistics show that my posts gets anywhere from 12 to 26 views. I am sure that pales in comparison to many blogs, but I am honored that 12 to 26 people were taking their time to read my ramblings each week. I'm guessing my view count for this post will be lower because of my month off.

To be fair, I was out of town for a week in the middle of November, and then there was Thanksgiving. But, ideally, I would have written those weeks, too.

I have eleven more teaching days. AP Statistics will drop two of those days, so I have only nine more class meetings in 2015.

From where I sit, things have gone quite well this semester. Certainly, there is room for improvement, but I am pleased overall. We have covered about 40% of the AP Statistics curriculum. I made some projections based on the tests they have taken thus far and they are all on track for a three or better. Of my nine students, three of them currently project to a five, which certainly feels good to write.

Second semester will present new challenges. Seven of my nine are seniors. I would guess at least two of them will come down with a bad case of senioritis. That doesn't really bother me. I have been teaching seniors long enough to anticipate this and not take it personally. What concerns me is the potential negative impact they could have on the class as a whole.

For my non-AP Statistics class, I designed the second semester with the second semester senior in mind. I kept the workload light and we played blackjack, played craps, read the book "How to Lie with Statistics", and each student sold a product employing the artful use of statistics.

This year I have an AP Statistics class. Particularly since this is my first year teaching this course, I do not feel I can do the same projects. I expect the second semester workload will mirror the first semester, making senioritis a greater concern for me.

I will do what I can to fend it off. I will try to keep my energy up and do my best to incorporate several engaging activities that simultaneously teach the concepts and keep the interest of the students. But, ultimately, it is not me who will be taking an AP exam in May. The students will have to decide for themselves how hard they want to work and how important that three-hour exam is to them.

PS - If anybody can help me learn how to follow a Twitter StatsChat, I would greatly appreciate it. I have not yet figured that out.