• Resource ID: TEKS12_MATH_02_001
• Subject: Math

### Modeling Addition and Subtraction of Two-Digit Numbers

In this activity students will model addition and subtraction of two-digit numbers.

• Resource ID: K4SCI002
• Subject: Science

### Increasing and Decreasing Energy

This resource provides sample activities for teachers to use in helping students to identify and investigate the effects of increasing and decreasing amounts of light, heat, and sound energy on an object.

• Resource ID: R4SCI0057
• Subject: Science

### Exploring the Water Cycle

A Tier 1 earth science instructional resource for grade 2.

• Resource ID: E_MSTAR001
• Subject: Math

### ESTAR/MSTAR

The ESTAR/MSTAR Universal Screeners and Diagnostic Assessments are a formative assessment system administered to students in grades 2–8 to support instructional decisions in mathematics.

• Resource ID: T2T06
• Subject: Math

### Measurement: Converting Units of Measure

Measurement: Converting Units of Measure

• Resource ID: T2T05
• Subject: Math

### Building to Measurement with a Ruler

Building to Measurement with a Ruler

• Resource ID: T2T03
• Subject: Math

Learn about addition, subtraction, and using number lines to solve two-step problems.

• Resource ID: LAA_G2_AR

• Resource ID: PBS333

### Martha's Memory—Martha Speaks | PBS KIDS Lab

Help children understand point of view in storytelling and build vocabulary using this Martha Speaks video! Martha and friends discuss what the words "certain" and "sure" mean, and Martha shares her version of how a game they played ended.

• Resource ID: PBS342

• Resource ID: PBS343

### Proper Case of Pronouns | No Nonsense Grammar

Pronoun case is determined by how we use the pronoun in a sentence. There are three ways: subjective, when the pronoun does something; objective, when something is done to our pronoun;

• Resource ID: PBS373

### Irregular Plural Nouns | No Nonsense Grammar

While plural nouns often indicate more than one of something with a simple "s" or "es," irregular plural nouns do not. They change the word entirely. Elf becomes elves, tooth becomes teeth!

• Resource ID: PBS411

### Reflexive Pronouns and Subjects | No Nonsense Grammar

Reflexive pronouns reflect the subject of the sentence. A reflexive pronoun is a pronoun that is preceded or followed by the noun, adjective, adverb, or pronoun to which it refers within the same clause.

• Resource ID: R4SCI0042
• Subject: Science

### Living Organisms

A Tier 1 life science instructional resource for grade 2

• Resource ID: TPRI20001