Students can use this ebook in the classroom or outside the classroom in a blended learning model to solve problems. The teacher can produce and deliver the contents easily to students. In this way, the teacher has the possibility to include the problems that he finds suitable for the student. The teacher uses the template that we developed so that he can, in a user-friendly platform, write the ebook with the contents he designs for his students. In this paper, we present the design and development of an ebook for STEM teaching and learning of mathematics.

But this can be changed if the teacher takes advantage of the technology that is currently available. Studying math is many times a cumbersome task. We cannot ignore that they are no longer the same students for which the education system was designed traditionally. Mobile devices, smartphones, phablets and tablets, are widely available.

However, low achievement in mathematics education has been an increasing problem in several countries. It is probably best to look first at the tutorials and then at the blog, if you are hungry for more information.As we look toward the future of education in the 21st century, the prominence of a robust STEM (Science, Technology, Engineering, and Mathematics) curriculum is unquestioned. In some posts he explains questions that readers have emailed to him. Storr is also writing a Blog that contains some additional topics, some of them a bit more advanced than those that are covered in the tutorials. By the way, the allaboutcircuits forum that is associated with Kuphaldt’s book, is a very good place to ask if you have questions about any topic in the tutorials. But if the pace of the tutorials is too fast for you, try Lessons In Electric Circuits (allaboutcircuits) by Kuphaldt - it will take more time to work through them, but they might be easier for the absolute beginner. If you work through the tutorials you will quickly gain a good basic knowledge of electronics. The AC-Theory tutorial contains a good explanation of the necessary trigonometry, and also of complex numbers (for a more in-depth treatment of this topic, please take a look at the resources on my Complex Numbers page). But even without this you can understand most of the tutorial. For a few pages of the tutorial, the knowledge of a bit of mathematics would be useful, for example in the DC-Theory tutorial the advanced methods of circuit analysis require linear algebra.

The tutorials do not assume prior electronics knowledge of the reader. On the homepage the tutorials are listed in alphabetical order, but going through them in that order does not make much sense. The tutorials are independent of each other, but if you are new to electronics you might find it useful to look at them in the order in which I have listed them in the last paragraph. Each tutorial consists of about 5 to 15 consecutive pages which should be read one after another. Digital topics are also covered, ranging from the Binary System, Boolean Algebra, Logic Gates to Combination Logic, Sequential Logic and Counters. Wayne Storr has created a very good set of tutorials, ranging from DC- and AC-Theory over the basic devices Resistor, Capacitor, Inductor and Diode to Transistors and Operational Amplifiers and to circuits like Amplifiers, Oscillators and Waveform Generators and Filters.

The tutorials are listed in alphabetical order, but if you are new to electronics, I would recommend to start with DC Theory.

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