Today let’s back peddle a tad to a more basic topic in Spanish grammar – Demonstrative Adjectives and Demonstrative Pronouns. You will learn when to use them, how to differentiate them from each other. The words themselves seem very similar, so pay visual attention to the word-endings, and things will start to make sense as you improve your Spanish skills.
Demonstrative adjectives are simply words that “point” to something else, and in English are words; this/these, and that/those. They precede the nouns they modify and agree with them in gender (masculine or feminine) and number (singular or plural).