Mathematical Association of America at UTSA

Frog Tutoring Tutoring and mentoring for the local community K-12th and College Levels Encourage and engage local youths Enhance YOUR resume while making MONEY!!! Minimum of $30 per session Learn More: http://frogtutoring.com/jobs How to Apply:

Naval Research Laboratory (NRL) Summer Internship Program  You will conduct “hands-on” laboratory research for 40 hours per week under the guidance of senior NRL staff for 10 weeks each summer. The program is fully funded, and includes a PAID stipend, housing and travel accommodations for the intern For more info: http://www.nrl.navy.mil/hbcu/ You can also contact: Alexandra K. Ojeda, J.D. Manager, Federal and Puerto Rico Government Relations The Washington Center for Internships and Academic Seminars 1333 16th St NW Washington, DC 20036 Tel: 202-238-7936 Fax: 202-238-7700  

NumberPhile The Sum of all Natural Numbers

Warm-up Logic Puzzle How can you throw a ball as hard as you can and have it come back to you, even if it doesn't bounce off anything? There is nothing attached to it, and no one else catches or throws it back to you. http://brainden.com/logic-puzzles.htm

Warm-Up Answer! Throw the ball straight up in the air.

Man in a Elevator A man who lives on the tenth floor takes the elevator down to the first floor every morning and goes to work. In the evening, when he comes back; on a rainy day, or if there are other people in the elevator, he goes to his floor directly. Otherwise, he goes to the seventh floor and walks up three flights of stairs to his apartment.  Can you explain why? (This is one of the more popular and most celebrated of all lateral thinking logic puzzles. It is a true classic. Although there are many possible solutions that fit the conditions, only the canonical answer is truly satisfying.) http://brainden.com/logic-puzzles.htm

A Man in an Elevator Answer The man is of short stature. He can't reach the upper elevator buttons, but he can ask people to push them for him. He can also push them with his umbrella.

Putnam competition past/present and The Problem Solving Club. Next Meeting! Dr. Patterson February 19th Monday 2/22 Putnam competition past/present and The Problem Solving Club.