Third grade curriculum is designed to teach students about language and how to identifying and utilize a book table of contents, glossary, and index. They are taught what authors and illustrators are and how to identify the characters reveal story plots, and better understand story events and author meanings. They should now realize many words have several meanings and how to use a dictionary and thesaurus. Third grade students should be familiar with using prefixes and suffixes and compound words. They should be able to maintain correct tense throughout a story when writing.

Mathematics for third graders covers fractions and whole numbers, decimals, and an understanding of measurements in inches, feet, and yards, or metrics as well as liquid measurements.  They should know the aspects of length, weight, capacity, and temperature and how to use the correct measuring system. The student should know area and volume and how to use tools and formulas to establish measurements. Students should know the characteristics and properties of 2 and 3 dimensional shapes. At this point children should be able to interpret data in charts and graphs and create them.

Science includes knowledge of such things as the water cycle, pollution effects, the solar system, machines and electricity, plants and animals, basic geology, and the environment. In addition this age group should know safety rules for crossing streets, riding a bicycle, strangers, home safety and basic first aid.

Preparation for fourth grade includes lessons in health. This student should understand hygiene practices and how to care for the body. They should have knowledge of the relationship between nutrition and health, and know about calories, carbohydrates, cholesterol, fats, and protein.  Knowledge of food additives and the effects and healthy food choices is expected.  In addition, this child should be able to discuss wellness, disease prevention, smoking and drugs dangers, and the benefits of exercise.  Their awareness should include identifying bones, muscles, and organs.