Elaine J. Hom

Reference STEM education is a teaching approach that combines science, technology, engineering, the arts and math.

Reference Pi represents the ratio of the circumference of a circle to its diameter. Pi is an irrational number that never ends; the decimals go on forever and ever.

Reference In the third week of pregnancy, there won't be any major outward changes in a woman's body, but some pregnancy symptoms may have started.

Adderall is a prescription medication used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy.

The fourth week of pregnancy is usually when women discover they are pregnant. Now is the time to take a pregnancy test to know for sure.

Cyclobenzaprine is a prescription medication that is used as a muscle relaxant. It is intended for short-term use, and should be used with other medications.

Pinpointing the exact date of conception is hard to do. Due dates are usually calculated to 40 weeks after the first day of the woman's last period.

The Common Core State Standards Initiative is an effort to prepare every student for college or the workforce.

Complex numbers are numbers that consist of two parts — a real number and an imaginary number.

An imaginary number is a number that, when squared, has a negative result.

A real number is a value that represents a quantity along an infinite number line. They are, in fact, pretty much any number that you can think of.

Gabapentin is an anticonvulsant used to control specific types of seizures.

Prednisone is a medication aimed at treating symptoms of inflammation, allergies and chronic conditions.

Alan Turing, born June 23, 1912, broke the German Enigma code during World War II and developed a test for artificial intelligence.

A prime number is an integer, or whole number, that can be divided evenly only by 1 and by itself.

Roman numerals use seven basic symbols derived from the Latin alphabet.