Friday, July 22, 2016

Visual Patterns: Concrete Results

I would encourage you to use visual patterns in your class as soon as possible.  There is an excellent website to get yourself started at http://www.visualpatterns.org/ 
I gave this problem to my students in the middle of the quadratics unit for Algebra 1.  Any student has a chance at this.  That is what makes this so wonderful.  The playing field is leveled.  This particular problem is very cool because there are so many ways to view it.  So the beauty of visual patterns is that each student can look at the problem differently and still get the same answer.  The key is having them JUSTIFY their work.  You might want to try it yourself before looking below.
Here is my original problem 
Some things that I try to do when using this kind of problem.
1.  Have students work on their own first.  Then after some alone time, give time for collaboration.
2.  Have students try to work multiple solutions if they finish with one.
3.  Push students to visualize the problem in some way.  (manipulatives or drawing or sketch or computer based image...)
4.  Push students to give some meaning to the problem with algebraic symbols.
5.  I try to remember that this problem might take 20 or more minutes to work out.

Here are a few examples of what my students created with this problem.

This one saw the perfect squares involved and then just subtracted the two missing pieces off at the end.  


This group saw the smaller perfect square in the pattern.  Then dealt with the rest in a linear way.
  

I love this one because it incorporated a graph to make sure of their answer

This one is detailed.  The recognized the perfect square in the middle and then dealt with the other stuff as linear.  
I made these visualizations for the problem.  However, many of the students had these types of things on their papers before they wrote up the equations.  You can also see by the video below how the students were visualizing this problem.  Also, next year I'm planning on having the students do this type of visualization with a spreadsheet that @alicekeeler made.  http://alicekeeler.com/pixelart I found it in her blog post:  http://alicekeeler.com/2016/07/17/modeling-division-brownies-joboaler/ 

(x+2)(x+2)-2







(x+1)(x+1)+2x+1

(x)(x)+4x+2

More questions were asked for this problem.
Are the algebraic results all the same?
How do we know that the algebraic results are all the same?
Can we use DESMOS to see if they are the same?
Can we simplify to see if the algebraic results are the same?

Can you imagine your students wanting to know these questions?  It was so much fun.  


Here is the reward of the day.  One student who has trouble with the algebraic concepts and who almost never wants to talk about it got up and did this....magical.

Lastly, I'm thinking about taking the @saravwerf Number Talks challenge.  See her blog post at https://saravanderwerf.com/2016/06/27/secondary-number-talks-ill-convince-you-with-ducks/ 



Monday, May 23, 2016

Walking Meetings with Students

I was in Stockholm and Copenhagen in March of this year.  I was at a Move and Learn Conference in Stockhom and our host Martin Lossman gave an amazing idea.  He told me about his walking meetings with his students.  He talks about goals and how the class is going on a quarterly basis with his students on a 1 on 1 basis.  So simple.  So I tried it.  It worked like a charm.  A student had come in for help in the afternoon and we simply went for a walk to discuss how things were going.  We just went for a 2-3 ;minute walk.  We talked about what he had been working on and where he hoped to be. It took away all those uncomfortable pauses and eye contact issues some students have.  The other thing that walking does is it puts you on the same level as your student.  Often we are on physically different levels than our students which creates a "I'm Helping You" attitude.  Walking beside students creates a "Let us do this TOGETHER" attitude.   We got back to the math office and we went to work on what he wanted to cover.   Brilliant.  Thanks Martin! twitter @marlos71

Paul and Tina Zientarski, Martin Lossman, Linda and David Sladkey in Stockholm

You are Not Defined by a Grade

This is a note to self...

You are not defined by a grade, a number, a letter, a percentage, or a category.  These are labels.  They are not giving the whole picture of who you are.   Do you sometimes dwell on the high category you were rated at.  Other times do you wallow in the low percentage you earned.  Both are like grabbing the wind.  These are labels.   Remember that you are not defined by a label like a grade.  You are so much more than a grade.   Grades are temporary.  A percentage, a number or a grade can never give the whole picture of who you are.  It is fleeting and it will pass very soon.  So ACKNOWLEDGE your label.  This just means that you need to recognize that a label was given to you.  Secondly, REFLECT and LEARN from your label.  Maybe you need to be more humble, or maybe you need to try a little harder next time.  Lastly, you need to MOVE ON.  Labels are quickly in the past and they don't define who we are.

One other thing I want to tell you.  You are important.  You impact this world.  This world needs you.   So give a little back today.  Give a smile.  Engage in conversion and actually listen to the response.  Give a compliment to someone difficult in your life.  Write a note of thanks to someone who would never expect it.  Give your best even though you don't feel like it.  Go the extra mile for someone or something even though no one is looking.  Put a little extra time in your schedule today to just notice others and their needs.   When you do this you will smile and be at peace.  So go and make a difference.