Showing posts with label definitions. Show all posts
Showing posts with label definitions. Show all posts

Sunday, January 12, 2014

Success!!! Simplifying Algebraic Expressions

I have found that I have success in teaching when I am able to present a concept properly to the students with full definitions, correct vocabulary, and examples outlined with strategy. I leave nothing questionable or allow something to be called "that thing". I have also learned that if a strategy, method, object, concept, term etc., has a name, students learn, relate, retain, and apply them more.

This technique is very easy for me in Geometry. Geometry is my specialty to teach; however, Algebra 1 has been a nightmare.

Key problem: I teach kids how to do the math and then they ask me WHY?

And I can't answer them because sometimes I don't know why. I never questioned what I was taught; it's just how you do the math. This needs to change.

My goal this year has been to raise my skill level in teaching Algebra 1 to my skill level of teaching Geometry. It has been slow. I am extremely behind. There's no excuse. And I'm freaking out! But there are positive results. My students understand and use what I have taught them. Some of the most difficult concepts for me to teach, have become easier and more approachable. I'm beginning to see the flow of Algebra 1 and how it builds upon each concept. With Geometry, it just clicked. The struggle I've had with Algebra 1 has been the sequence. I've asked, and I couldn't find an answer. This year, I decided to pick up the textbook as my core resource pulling in CSCOPE materials, EOC prep materials, and other supplemental materials.

This is a look at our journal for the first semester. We haven't even made it half way through the journal!

Here's one area that has kicked my tush every time I try to teach it: Simplifying Algebraic Expressions. When it arrived on the horizon, I spent a large amount of time researching other teachers' strategies. I typed up my journal page pulling information from the textbook along with thoughts found on Math=Love. I liked how she took the time to define each part and show how the term can be expanded and seen in different ways. This made a difference, and answered several questions from students throughout the unit. The definition of combining like terms was referenced multiple time. For instance, a student wanted to change the exponent when adding x and x to x squared. I refered the student to the definition followed by guiding questions.

Another strategy/activity I loved was "Sorting Like Terms". A colleague of mine writes pairs of terms on cards and students have to decide on Like or Unlike and justify.

Here's my journal page on Simplifying Algebraic Expressions.

 

When we got to the example adding distribution into the mix, we discuss the operations behind distribution and combining like terms and then determine the proper order based on GEMDAS.

And I love when some student says "you do the parenthesis first". That drives me crazy!!!!! We analyze that comment and what it really means in relation to GEMDAS and what operation distribution represents.

Instead of dropping one practice assignment on my students, I have three different assignments spread out over a week that we keep going back to. This helps them review and retain the skills of combining like terms. I want them comfortable and confident with this skill. Kuta Software has multiple practice pages and at different levels. There skills are improving!!

 

 

Saturday, July 20, 2013

Venn Diagrams: Quadrilaterals and other Polygons

These activities are AWESOME! I love the discussions that come up, the type of thinking that occurs, and the multiple possibilities there are.

These materials were provided through a workshop. I have yet to use them in my classroom, but I have no doubt these would be an excellent addition to the unit of quadrilaterals.

You start with four different Venn Diagrams.

 

 

 

You have a selection of set titles and shapes.

Here are some examples of the use of these materials.

(Don't forget about the universal set on the outside of the circles.)

 

 

Some suggested strategies/conversations:

  • Have a student demonstrate their Venn Diagram.
  • Have students justify their decisions.
  • Start with with set titles and categorize shapes.
  • Start with categorized shapes and determine the set title.
  • Ask students where they started and how they categorized the shapes.

 

Quadrilaterals Project From My Second Year

My secret.... Sometimes when I'm not sure where to start, I go to my students. My second year of teaching, I got to the unit of quadrilaterals and had no idea where to start. I decided to assign an exploratory based project to my honors class and see what turns up.

Objective: Students design and create a graphic organizer on the topic of quadrilaterals.

It began as a very open project and resulted in some unique results. I gave them several days to research, design, and produce their graphic organizer. We used a round robin strategy to evaluate and rate the graphic organizers on display. After this, the students were to choose a graphic organizer and complete one of their own for their journal containing the generalized information of the class.

 

The following are student products and may contain copyright violations and incorrect information.

1. Multi Shutter Fold within Large Shutter Fold

This was by far the most creative and the inspiration for the Properties of Quadrilaterals foldable I now use.

2. Basic Half Page Book Fold

3. Shutter Fold
4. Shutter Fold
5. Half Page Book with Post-it pop ups
This student is one that always makes me smile-unique, challenging, and brilliant. His graphic organizer turned into "what is not a quadrilateral" and I think he enjoyed exploring other shapes more. He used post-its to summarize/justify why the shape is not a quadrilateral.
6. Attribute Pop-up
This graphic organizer is great!! They drew individual quadrilaterals and added pop-ups for definitions. Not overly organized, but I still like it.
7. Trifold Computer Generated
8. Half Page Book
I don't know how I feel about the quadrilateral web, because it depicts a parallelogram as being a subcategory of a trapezoid. That was another gray area topic. It was a good conversation to listen to when the kids evaluated this graphic organizer.
9. Half Page Book
10. Layered Flip Book
 

I collected the above graphic organizers, combined some styles that I liked, and produced the following graphic organizer that I used this past year. I am always still working on facts and information. So if you have any critiques or suggestions, please comment.

 

 
 

The second half of the project consisted of an essay.

Options:

  • Write two full pages analyzing the attributes and relationships of quadrilaterals.
  • Depict the attributes and relationships of quadrilaterals using fiction.

I ended up with quite a bit of plagiarism which was a violation of the course syllabus and resulted in failing grades and reprimands.

However, the best result is the relationship a student told of a rectangle and a rhombus. "Rectangle and Rhombus stayed out late one night, and nine months later they had Square."

 

EXTRA: This is my first quadrilateral foldable experience from a journaling workshop.