useful when you need to make sense of the given information and figure out how to attack a complex problem (MP1). Once students know how to create and apply these models, all they need is a surface to write on and a writing utensil.

**Check out these two articles for some examples of problems that can be solved using the bar model. The first article quotes Scott Baldridge a professor at LSU and the mathematics expert who is overseeing the development of the NY Math Modules.**

So what can you do with these basic models?

So what can you do with these basic models?

__http://ramosgroup.squarespace.com/storage/Singapore%20Math_%20Simple%20or%20Complex.pdf__

__http://www.hmheducation.com/singaporemath/pdf/ModelDrawing.pdf__

**Technology and Bar Models-**

I haven't decided what I think about using computer or iPads to create bar models (Erin). I love the simplicity of just being able to draw a quick sketch anytime anywhere. The best argument for using a program to create a bar model is a situation that requires you to split a bar into equal pieces. You'll see how easily that was done in the video.

The Youtube video below shows a solution modeled using the "Modeling Tool" on the Thinking Blocks website.

__http://www.thinkingblocks.com/tb_fractions/fractions.html__