Hebrew has 22 letters, all of which are considered consonants. In modern Israeli Hebrew, such as newspapers, vowels are not printed. The reader usually makes out each word without the vowels.
Biblical Hebrew in Torah scrolls is also written without vowels. The Massorites later added the vowels in printed texts to resolve and standardize any differences in pronunciation. An example of a Hebrew vowel is the "Patach", which looks like a small dash written under a letter. It adds the "AH" sound to that letter.
In the tutorial "At Home with Hebrew" the letters and vowels are taught one step at a time. The first lesson teaches two consonants and 3 vowels, and the second lesson teaches two additional letters, and two more vowels.
So for example, the exercises in the first lesson, if they were in English letters, would have your pronouncing practice syllables like this: BAHBAH BABEH BEHBAH, VAHBAH, BAHVAH, BEHVAH, VEHBAH, BAHB, BAHV.
Lesson 2 adds two more letters (DALET and GIMMEL). At this point, the new letters are mixed with the vowels from the prior lessons to make it easy on the student. Examples might include: DAHDAH, DAHGAH, GAHGAH, GAHGEH, DAH, GAH, DAHD, GAHG.
By adding just one or two vowels at a time, the student continues to add to his or her collection of vowels. For example, the SHURUK has an "OO" sound. This allows the program to rehearse the student with syllables such as: DOO, GOO, BOO along with past sounds DOOBAH, GOOBEH, DOODAH, etc...
Towards the end of a lesson, the student is reviewed on letters from prior lessons, as well as letters from the current lesson. This makes sure that the learner retains information from prior lessons. So now, the student could try to pronounce syllables like: BEEGEE, BOOGOO, DOODAHD, VOODOO, BEEVAH, and so on.
From time to time, a new letter being taught might look like an existing letter already taught. For example, when the letter "RESH' is introduced, the student has already learned the letter "DALET". The tutorial program shows teh two letters, side-by-side, so the student can compare and see the sublte differences. Text also explains the differences to make sure it is obvious.
The student continues to learn, with just two consonants per lesson. By the end of the fourth lesson, all the vowels have been taught. By the end of the thirteenth lesson, the student will be able to read all twenty two letters and all the vowels. Thus, he or she will be able to pronounce any Hebrew word.