Friday, December 14, 2012

Fractions, Decimals and Percents, oh my!

I know, I know - it's been forever! I have been so busy with work that most days when I got home I didn't even want to think about writing about it - and then, on those days where I was feeling it, I either had blogger's block or forgot to take pictures of the cool things we were working on in class!

This has been a busy few months for me, but I'm very proud of how our math notebooks are coming along.  My only problem is that I'm running out of space!  A lot of my students only have a few pages left in the first section of their notebooks, and we are already using the 2nd and 3rd sections for other things.  My plan was to use the first section for notes and foldable, the second section for vocabulary, and the third section for warm ups.  I have not been using the vocabulary section like I wanted to, so I think I am just going to have students move to that section when they run out of room in the first section.  Next year I think I will either request a five subject notebook, or find a different way to work the vocab section (maybe a running definition sheet instead of Frayer's model?)

We have covered quite a few topics since my last post - integer operations, writing algebraic equations and expressions, solving algebraic equations (one and two step), and graphing functions.  My plan is to go back over winter break and cover each of those in a separate post. 

Right now, we are working on converting between fractions, decimals and percents.  We made a booklet showing how to convert between each that students could reference later.  I also gave students some benchmark fractions that I expect them to know (1/2, 1/3, 1/4, 1/5, 1/8, and 1/10).  These are some very standard fractions that make student's lives so much easier if they just know them, so I give them to students and we practice them.

Front of the booklet with notes on the side

Inside of booklet - we wrote how to inside the front flap, and examples on the other side.

Then, because I LOVED how simple this was, we used this idea from Math = Love. (I could not for the life of me find the exact post - I originally saw this on pintrest, but it didn't link to the original post.) Anyways, I added the conversion back to decimals because I feel students need to know it, but didn't add the other two because I thought it would mess up the simplicity of it. 

Conversion Triangle

Finally, we played a game I made up called 'Bazinga!'  I loosely based it off of the game, 'Kaboom!' created by Carol S. that I purchased last year from Teachers Pay Teachers and used for another topic. There were quite a few things I changed about the game to better fit my style of teaching, so I decided I needed to change the name.

In Bazinga, there are three types of cards - Bazinga! cards, Double Points cards, and the question cards.  If students pull a Bazinga card they lose all of their points. If they pull a double points card they get to take it back to their seat and use it whenever they want to double the points they earn that round (not all of their points).  Finally, the question cards can be on whatever topic you want - this time I wrote either a decimal, a percent or a fraction on the cards.  Students had to come up with the other two forms of the number. (So if a decimal was on the card, they had to write an equivalent fraction and percent.)  The first team to hold up their whiteboard with the correct answer earns 20 points, the second team earns 10 points, and the third team earns 5 points (they keep track of their own score).  The first team also selects the next card from the deck.  Students love it (especially when the winning team pulls a Bazinga! card and loses all of their points), it provides great practice, and immediately allows me to see who is/is not getting it.  I can also immediately correct any misunderstandings and confusions that come up.  I am selling this game in my Teachers Pay Teachers store - just click the picture below.

For homework I had students fill in a chart that had three columns (fraction, decimal or percent).  I gave one form of the number, and had the students give the missing two. If you would like a copy of this, just click on the picture below! 

Homework Assignment

We are continuing to work on this, but I found that the game helped most students grasp the concept. It was amazing the amount of growth I saw from the beginning of the game to the end of the game.  What are some ways you teach changing from decimals to percents to fractions?


1 comment:

  1. Hi there! Have you ever experienced such a situation when someone has robbed you online and took your intellectual property? Can't wait to hear from you.


Thank you for visiting my blog and taking the time to leave a comment! I look forward to reading what you're thinking!