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I am excited to host the 49th Math Teachers at Play Blog Carnival this week! Did you know April is Math Awareness month? That makes it a great time to learn more about the amazing thing all of these mathematicians are doing!

Since it is the 49th Carnival, here are some fun facts about the number 49:

**Forty-nine** is the square of seven and is therefore the fourth squared prime number.

49 is the first square where the digits are squares. In this case 4 and 9 are squares.

49= 4 x 9 + 4 + 9

During the Gold Rush, the gold seekers that came to California were called “forty-niners” because most of them came in 1849.

Now on to the fabulous submissions:

- The Map is not the Territory shared two posts- A Game of Her Own- Discovering Division. A darling post about her daughter creating her own math game. Totally Territorial: Cats, Maps, Area & Multiplication is another fun game to teach her daughter using a map of her city and dice- looks like fun!

- Epsilon Delta posted: Exponential/Log Function Review Day + Napier! this is a post about her review day before the test. She links to Powerpoint and review problems that she created.

- Mathematics for Teaching posted- Angles Are Not That Easy To See. This post describes how to find angles in situations all around you. Very Interesting!

- Maths Insider submitted a post called 10 Conversation-Starting Math and Education Infographics. I truly loved looking through all of these statistics and infographics. Check them out!

- Math Mama Writes submitted this post: The Oakland Math Circle Does Spot It. This is a fun posts evaluating the game Spot It.

- My Digital Notebook gives a great post – The Area of a Disk. I love the step-by-step instructions and figures!

- Math Hombre wrote a post titled Math Memoirs. A video and other images of math problems done by his daughter. thanks for sharing!

- Pat’s Blog posts Three Time the Symmetry– a post about symmetrical mathematics problems. So cool!

- Eloquent Math shares a post called Pi, Circles and Spheres! This is an interesting post about why the formula for the area of a circle works.

- Toad Haven Homeschool posts Visual for Division. This is a post about how to explain division in a really fun way. I will definitely try this with my kids when we get to division!

- Fawn Nguyen posted Always Sometimes Never– she used these questions with her 6th grade math class. Looks like a fun lesson!

- Let’s Play Math shared Raymond Smullyan Excerpts at Dover Publications. These are links to excerpts from the classic puzzle books by Raymond Smullyan. I am excited to look into these books further.

- The Endeavor posted the Misplaced Decimal an interesting post about how decimal notation is wrong.

- Online Math Degrees posts an extensive list of math carreers in the post- Put Your Degree to Work: 20 exciting Careers for Math Majors

- My own submission is a guest post I did at the Enchanted Homeschooling Mom titled More Math Please. It is a collection of fun ways to teach math to young children.

Want to submit your post for next month’s carnival, or host one? Here is the MTaP Carnival Page. See the archives for past MTaP Carnivals here. Also be sure to visit the partner carnivals: Carnival of Mathematics and Mathematics and Multimedia.

John Golden says

Very nice! Great stuff this month. Love the images you found, too.