**Friday, June 23rd, 2017**:
We have a new quiz, called

Parent Functions by Name.

**Tuesday, June 20th, 2017**:

We have two new lessons, called Sigma Notation: Arithmetic Series and Sigma Notation: Geometric Series.

**Monday, June 19th, 2017**:

We have a new lesson, called Sigma Notation.

**Thursday, June 15th, 2017**:

We have a new quiz, called Sigma Notation: Arithmetic Series.

**Wednesday, June 14th, 2017**:

We have a new quiz, called Sigma Notation: Arithmetic or Geometric.

**Friday, May, 26th, 2017**:

We have two new lessons, called Limits of Piecewise Functions and Limits: Numerical Approach.

**Saturday, May 20th, 2017**:

We have two events to report:

**Wednesday, May 18th, 2017**:

We remastered a quiz, called Complex Numbers: Powers of i.

**Tuesday, May 17th, 2017**:

We remastered a quiz, called End Behavior.

**Monday, May 16th, 2017**:

We have a new lesson, called Limits of the Extreme.

**Thursday, May, 4th, 2017**:

We remastered a quiz, called Binomial Theorem: Term.

**Sunday, April 30th, 2017**:

We have a new quiz, called Limits: Piecewise Functions.

**Friday, April 14th, 2017**:

We have a new lesson and two quizzes, called:

**Monday, April 10th, 2017**:

We have a new video and a lesson, called Vector Projection and Vector Projection, respectively.

**Thursday, April 6th, 2017**:

We have a new video, called Vector Dot Product.

**Wednesday, April 5th, 2017**:

We have a new quiz, called Vectors: Projection.

**Tuesday, April 4th, 2017**:

We have two new quizzes, called Vectors: Dot Product and Vectors: Dot Product 2.

**Sunday, April 2nd, 2017**:

We have a new lesson, called Dot Product of Vectors.

**Saturday, April 1st, 2017**:

We have a new lesson, called Engineering Notation (Vectors).

**Thursday, March 30th, 2017**:

We have a new lesson, called Partial Fraction Decomposition.

**Monday, March 27th, 2017**:

We have a new quiz, called Partial Fraction Decomposition.

**Sunday, March 26th, 2017**:

We have a new quiz, called Inverse Matrices.

**Thursday, March 23rd, 2017**:

We have a new lesson, called The Inverse of a Matrix.

**Monday, March 20th, 2017**:

We have a new video, called The Multiplicative Inverse of a Matrix.

**Saturday, March 18th, 2017**:

We have a new quiz, called Law of Sines: Ambiguous Case (SSA).

**Thursday, March 16th, 2017**:

We have a new quiz, called The Unit Circle: Angles.

**Tuesday, March 14th, 2017**:

We have a new quiz, called The Unit Circle: Ratios.

**Saturday, March 11th, 2017**:

We have a new quiz, called Vectors: Horizontal and Vertical Components.

**Thursday, March 9th, 2017**:

We have a new quiz, called Counting: Town Maps and Grids Problems.

**Tuesday, March 7th, 2017**:

We have a new quiz, called Counting: Scrambled Letters Problems.

**Monday, March 6th, 2017**:

We have a new quiz, called Counting: Bookshelf Problems.

**Wednesday, March 1st, 2017**:

We have a new quiz, called Counting: Seating People Problems.

**Tuesday, February 28th, 2017**:

We have a new lesson, called Solving Trigonometric Equations. It houses two very important videos that we made last year.

Also, our lesson on Factoring Polynomials (formerly called Factoring Quadratic Trinomials) was overhauled.

**Sunday, February 26th, 2017**:

We have a new video, called Counting: Card Deck Problems.

**Saturday, February 25th, 2017**:

We have a new video, called Probability: Marble Bag Problems.

**Tuesday, February 21st, 2017**:

We have a new video, called Probability of Rolling Dice.

**Saturday, February 18th, 2017**:

We have a new video, called Law of Sines: Ambiguous Case (SSA).

**Wednesday, February 15th, 2017**:

We have a new video, called Counting: Election Problems.

**Monday, February 13th, 2017**:

We have a new video, called Counting: Number of Possible Paths on a Grid (Map).

**Saturday, February 11th, 2017**:

We have a new video, called Counting: Books on a Shelf Problems.

**Thursday, February 9th, 2017**:

We have a new video, called Counting: Seating People Problems.

**Tuesday, February 7th, 2017**:

We have a new video, called Counting: Scrambled Letters, Numbers, Objects.

**Monday, February 6th, 2017**:

We have a new video, called Verifying Trigonometric Identities.

**Saturday, February 4th, 2017**:

We have a new video, called Counting: Horse Problems.

**Thursday, February 2nd, 2017**:

We have a new video, called Counting: Tickets Problems.

**Tueday, January 31st, 2017**:

We have a new video, called The Fundamental Counting Principle: License Plate Problems.

**Monday, January 30th, 2017**:

We have a new video, called The Fundamental Counting Principle: Clothes Problems.

**Saturday, January 28th, 2017**:

All of our trigonometry lessons, quizzes, and videos have been lumped together within their own section on our Lessons page.

**Sunday, January 15th, 2017**:

A quiz called Graphs of Sinusoids to Equations was remastered.

**Friday, January 13th, 2017**:

A quiz called Three Step Equations: Type 2 was remastered.

**Wednesday, January 11th, 2017**:

The quiz called Three Step Equations: Type 1 was remastered.

Also, adjustments were made to the lessons page. A link was missing to a quiz, called Area of a Regular Polygon.