<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
Dismiss
Skip Navigation
Our Terms of Use (click here to view) and Privacy Policy (click here to view) have changed. By continuing to use this site, you are agreeing to our new Terms of Use and Privacy Policy.

2.3: Straws and Glasses

Difficulty Level: At Grade Created by: CK-12

Straws and Glasses - Proportional Reasoning

Students draw 2 or 5 straws in each glass. They count to tell the number of straws in all. Encourage students to count by 2s or by 5s to figure out the total. Provide crayons or markers for drawing. You may want to do problems 1, 2 and 3,that focus on counting by 2s, as a class exploration. Likewise, 7, 8 and 9, that focus on counting by 5s, may be good to complete as a whole class activity.

Solutions

Draw 2 in each glass.

Count the straws.

How many straws in all?

1.

________________ straws in all

2.

________________ straws in all

3.

________________ straws in all

Draw 2 in each glass.

Count the straws.

How many straws in all?

4.

________________ straws in all

5.

________________ straws in all

6.

________________ straws in all

Draw 5 in each glass.

Count the straws.

How many straws in all?

7.

________________ straws in all

8.

________________ straws in all

9.

________________ straws in all

Draw 5 in each glass.

Count the straws.

How many straws in all?

10.

________________ straws in all

11.

________________ straws in all

12.

________________ straws in all

Image Attributions

Show Hide Details
Save or share your relevant files like activites, homework and worksheet.
To add resources, you must be the owner of the section. Click Customize to make your own copy.
Reviews
Help us create better content by rating and reviewing this modality.
Loading reviews...
Please wait...
Please wait...
Image Detail
Sizes: Medium | Original