This book is aimed at students in the 4th grade of primary school and was created to help them practice the grammar and spelling of our language in a creative and fun way. To this end, it follows lesson by lesson the school language book, containing:

• Brief theory of basic grammatical and spelling phenomena from the school book, accompanied by related vocabulary exercises (filling in letters and words, word families, synonyms-antonyms, compounds, etc.).
• Diverse word games, such as crosswords, word searches, fill-in-the-blanks, etc., with which children develop their language skills, enriching their vocabulary and sharpening their perception by playing with words from the sections of the school book.

With the activities in this book, children can creatively engage throughout the school year, as well as during vacations, in order to reinforce what they learn.