We’ve posted a new lesson in Chemistry which teaches
about ions and how to predict ionic charge using
only the periodic table.

Lesson 13 – Ions and Ionic Charge

I have had many students over the years
ask that I put up more lessons on how to take
derivatives in Calculus 1.  I have 4 lessons
now up for this with more soon to come!

The Calculus 1 Tutor does cover how to
take derivatives in detail, but you can view
these lessons as giving you more examples
and more challenging problems to test
yourself and prepare for exams:

Lesson 1 – Basic Derivatives Part 1

Lesson 2 – Basic Derivatives Part 2

Lesson 3 – Product Rule Part 1

Lesson 4 – Product Rule Part 2

We’ve posted a new lesson in Chemistry!

Lesson 12 – Naming Molecular Compounds

We’ve posted a new lessons in the Differential
Equations, Vol 2 Area!

Lesson 4 – The Linear Differential Operator

We have posted one new lesson in Chemistry 1
and one new lesson in Differential Equations, Vol 2:

Chemistry 1, Vol 1
Lesson 11 – Overview of the Periodic Table

Differential Equations, Vol 2
Lesson 3 – Solving Elementary 2nd Order and Higher ODEs

We’ve posted a new lesson the Chemistry 1!

Section 10: Atomic Mass of an Element

We’ve posted 2 additional lessons for the
HP50g Calculator Tutor!

Lesson 6 – Using the Equation Writer
Lesson 7 – Advanced Features of the Equation Writer

We’ve posted a new lesson on the HP50g
Calculator Tutorial!

Lesson 5 – Basic Calculations and Working with Fractions

We’ve posted a new lesson in Differential Equations:

Differential Equations, Volume 2:
Lesson 2 – Identifying Linear ODEs of 2nd Order and Higher

We’ve posted two new TI-89 Calculator Lessons!

Section 39 – Calculating Indefinite and Definite Integrals
Section 40 – Calculating Limits in Calculus