Source: https://figurethis.nctm.org/challenges/c14/challenge.htm (License: Protected by Copyright (c) [i.e. screenshot])

 

The National Council of Teachers of Mathematics sponsors this, Take a Challenge Web site that has 80 problem-solving challenges that can be used for algebra and geometry students. The site is also available in Spanish.

For this activity, we will be working on figuring out averages.

Source: Figure This Challenge Index (License: Protected by Copyright (c) [i.e. screenshot])

 

The National Council of Teachers of Mathematics sponsors this, Take a Challenge Web site that has 80 problem-solving challenges that can be used for algebra and geometry students. The site is also available in Spanish and if you do not have Internet access at your school, look for the link at the bottom of the page to Printing the Challenges for printed copies of each challenge.

Source: Moomoo Math and Science (License: CC0/Public Domain)

Watch the video instructions for students to figure out the tip to pay for a restaurant meal. It is a good introduction to this math and science help Web site and to calculating percents. Students use the worksheet to practice.