Introduction to Model DrawingElissa Scillieri

How would you do this?

What is Model Drawing?

• A tool used to help students visually represent word problems.

Why Model Drawing?

• Helps students visualize mathematics• Requires students to show their thinking• Addresses Mathematical Practices:• #2: Reason abstractly and quantitatively.• #3: Construct viable arguments and critique the

meaning of others.• #4: Model with mathematics.

Reaching Conceptual Understanding

• Concrete• Blocks, chips, etc.

• Pictorial• Number lines, bar models, etc.

• Abstract• Number sentences (equations)

First Grade Word Problem

Introducing Model Drawing

Now you try!

A Challenge!

4 Steps for Problem Solving

1. Read the problem.2. Write the answer sentence. 3. Work bit-by-bit to model the problem. 4. Do the math.

Use the 4 Steps to Solve This Problem:

A Two-Step Problem

Another Two-Step Problem

How would you draw a model for this problem?

A Challenge

Model this problem:

Be careful showing this problem:

A Challenge

Using models to show fractional parts:

Are you smarter than a 5th grader?

Are you smarter than a 5th grader?