Write or read a control word.
Expand the brackets or insert the missing letters.
Russian spelling is subject to a strict system and relies on three basic spelling principle: morpheme; the alternation of vowels and consonants; traditional or historical principle of spelling governed by the dictionaries.
Highlight the word orfogramm. Find out and mark the phoneme in the weak position. For the vowels is unstressed; for consonant — deaf/ringing, unutterable, unmatched in hardness/softness.
Find out what part of speech is orfogramm, and select the morpheme graphically.
Pick the word verification (where the sound will stand in a strong position) or identical in structure (same grammatical form, has the same morpheme). For example: "run" — "sign"; "book" — "book"; "storekeeper" — "ice cream man". What are the word verification, and give examples of this orfogramm.
Name orfogramm and all its symptoms: in a word, conditions of occurrence, the possibility or impossibility of selection of test words. Relate orfogramm with the appropriate rule and guide it.
For example:

"...VAT", "n...Vinca", "R...ka."
"Develop", "new", "river" — words with unstressed vowel of the root word. Not to make a mistake in writing it, you need to change words or to choose sub-sets of cognate words, which check the vowels are under the accent: "develop" "development" "new" "new" "river" "rivers".

"Ser...TSE", "zu...", "about...LBA".
"Heart", "tooth", "request" — check the words with consonants in root words. To correctly write words with this orfogramm, it is necessary to find cognate words, check the following consonants will stand by a vowel or the consonants: "b", "l", "m", "n", "R". "Heart" "heart", "tooth" is "teeth", "please" — "ask".