Activity
Science Buddies

Science Buddies: How Many Numbers Can You Remember?

For Students 3rd - 5th
Most people don't even remember phone numbers anymore, and instead program them into their phones. There is a limit to the number of numbers, or digits, that most people can remember. Try this experiment to test your digit span, the...
Activity
Science Buddies

Science Buddies: Strength in Numbers?

For Students 3rd - 8th
Ever try to tear a telephone book in half? Even though you can easily rip one or a few pages to shreds, the entire phone book has strength in numbers and holds together. This project is an introduction to measuring and comparing the...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: F if the Customers

For Teachers 9th - 10th Standards
This is a beginning lesson on the concept of functions. The context is a business that has a database of customer names and phone numbers in a table and students must decide if a function is involved. Aligns with F-IF.A.1 and 8.F.A.1.
Handout
US Department of Education

Oeri Publications Guide: Dashes and Hyphens [Pdf]

For Students 9th - 10th Standards
This article contains information regarding the em-dash, the en-dash, and hyphens. Many examples are included. Site is extremely detailed and thorough.

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