Physical Materials:

• Graph paper 
• Colored pencils
• Base ten blocks 
• Interlocking cubes

Digital Materials:

• Math Activity – Working with Decimals Interactive Slide Deck
• Math Activity – Working with Decimals Google Doc
• Virtual Manipulatives

Instructions:

1. Watch the introduction video below.

2. Work through Part 1 and make sure to try at least one representation that is new to you.
3. If you’d like, watch the video of educators talking through their work on this task to help broaden your understanding.

4. Work on Part 2 next, make sure to use the same systems for representing numbers you used for Part 1 for the computation problems.
5. When you finish Part 2, watch any of the videos below to hear educators discussing their ideas and think about what is similar or different to your approach.

6. Watch the synthesis video below.