If you're looking for some great math practice problems, Twitter can be one place to turn. It's also convenient since you're probably logging in to tweet on a regular basis anyway. Here are some "Tweeters" to consider if you're looking for some extra practice or a challenge.

**Name: ** NCTM

**Description:** The National Council of Teachers of Mathematics tweets primarily high school level problems. Questions go out in the morning, answers at night.

**Example Problem: ** How many different rectangles can be drawn using the hour marks on a clock's face as vertices?

**Frequency:** Problems tweeted every weekday.

**Name:** Mathprobs

**Description:** Mainly high school level questions are posed. Students posting answers get props via Mathprobs twitter feed or are encouraged to try again.

**Example Problem: **1101011010110 in base 2 = what in base 4???

**Frequency:** About once a week

**Name:** Mathquestions

**Description:** Tweets here are for middle through high school students a little less frequently than some of the others.

**Example Problem: **How can you add eight 8's to get the number 1,000?

**Frequency:** About once a month

**Name: **Tutor4math

**Description:** Provides a link to an SAT question of the day. These questions are a mix of math and verbal.

**Example Problem: ** A train travelling 60 miles per hour for 1 hour covers the same distance as a train traveling 30 miles per hour for how many hours?

**Frequency:** Daily

Name: Algebra_com

**Description:** Tweets links and a short description of questions being posed by students from algebra.com. Requires free registration on algebra.com.

**Example: **A lamp is marked with a sale price of $23.80, which is 15% off the regular price. What is the regular price?

**Frequency:** Multiple times a day

**Name:** ____Math____

**Description:** Posts are questions being posted by students on a math forum. Tends to be middle school to early high school level.

**Example: **How many diagonals does a square have?

**Frequency:** About once a day

Know another great place for math problems on Twitter? Post it in the comments below.

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For more than a decade, Lucas Allen was high school math teacher and math team coach in Illinois. His 2012 Morton High School math team won the Illinois state championship. Recently, he made the jump from public education to the corporate world and is a now working as a data scientist. He is interested in just about all forms of technology, including the TI-Nspire, Nexus devices, R, MOOCs, and more. You can follow Lucas on Google Plus, and if you are nice, he will probably follow you back.

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