## From Molecules to Organisms: Structures and Processes

#### Students who demonstrate understanding can:

Read texts and use media to determine patterns in behavior of parents and offspring that help offspring survive. 1-LS1-2

Clarification Statement and Assessment Boundary

Clarification Statement: Examples of patterns of behaviors could include the signals that offspring make (such as crying, cheeping, and other vocalizations) and the responses of the parents (such as feeding, comforting, and protecting the offspring).

Assessment Boundary: none

##### Science and Engineering Practices

Obtaining, Evaluating, and Communicating Information

Obtaining, evaluating, and communicating information in K–2 builds on prior experiences and uses observations and texts to communicate new information.

###### Connections to Nature of Science

Science Knowledge Is Based on Empirical Evidence

##### Disciplinary Core Ideas

LS1.BGrowth and Development of Organisms

Patterns

### Common Core State Standards Connections

ELA/Literacy
• RI.1.10 - With prompting and support, read informational texts appropriately complex for grade 1. (1-LS1-2)
• RI.1.2 - Identify the main topic and retell key details of a text. (1-LS1-2)
Mathematics
• 1.NBT.B.3 - Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <. (1-LS1-2)
• 1.NBT.C.4 - Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten. (1-LS1-2)
• 1.NBT.C.5 - Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used. (1-LS1-2)
• 1.NBT.C.6 - Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences), using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. (1-LS1-2)

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