The Common Core State Standards Initiative is a uniform set of benchmarks children across the country must meet. Here's a sampling of what students must master at a certain age.

A complete list of standards is available at corestandards.org.

Kindergarten

• Know number names and the count sequence

• With prompting and support, ask and answer questions about key details in a text

• Read common high-frequency words by sight (i.e. the, of, to, you, she, my, is, are, do, does)

1st Grade

• Add and subtract within 20

• Identify words and phrases in stories or poems that suggest feelings or appeal to the senses

• Write informative/explanatory texts in which they name a topic, supply some facts about the topic and provide some sense of closure

2nd Grade

• Work with equal groups of objects to gain foundations for multiplication

• Identify the main topic of a multi-paragraph text as well as the focus of specific paragraphs within the text

• Use collective nouns, form and use frequently occurring irregular plural nouns (i.e. feet, children, teeth, mice, fish)

3rd Grade

• Multiply and divide within 100

• Distinguish their own point of view from that of the narrator or those of the characters

• Decode multisyllable words

4th Grade

• Understand decimal notation for fractions and compare decimal fractions