• Resource ID: TXLS091
• Subject: Math

### Subtraction Seekers

Students will be introduced to subtraction in an inquiry-based lesson that uses concrete examples and allows students to explore through different settings and scenarios.

Texas Essential Knowledge and Skills (TEKS) Vertical Alignment

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• Resource ID: TXLS056
• Subject: Math

### Humpty Dumpty's Mystery Fall

Students will listen to the story of Humpty Dumpty and share what they know about the nursery rhyme character. Then, they will help solve the math mystery of Humpty Dumpty and determine the number of broken eggs by finding the missing addend.

Texas Essential Knowledge and Skills (TEKS) Vertical Alignment

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• Resource ID: TXLS043
• Subject: Math

### Comparing Fractional Parts

Students will participate in whole-group and small-group instruction as they collaborate and use manipulatives, visuals, and hands-on activities to explore fractional parts. Ultimately, students will understand that when dividing a whole into fractions, the smaller the fractional part, the greater the number of parts, and the larger the part, the fewer the number of parts.

Texas Essential Knowledge and Skills (TEKS) Vertical Alignment

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• Resource ID: TXLS070
• Subject: Math

### Make a Hit with Decimals

Students will compare and order decimals using baseball batting statistics. Through discovery, students will determine the top six out of eleven players to be recruited for the school’s baseball team, present their findings, and explain reasons for their orderings. From students’ explanation, strategies for ordering decimals will be determined and used to adjust subsequent lessons.

Texas Essential Knowledge and Skills (TEKS) Vertical Alignment

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• Resource ID: TXLS042
• Subject: Math

### Time Using the Z Method

In small groups, students will calculate elapsed time using the Z method. This method helps students better understand the importance of start time and end time when performing elapsed-time calculations.

Texas Essential Knowledge and Skills (TEKS) Vertical Alignment

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• Resource ID: TXLS110
• Subject: Math

Students will practice solving one- and two-step problems in a simulated real-world situation by calculating the costs of different Thanksgiving dinners.

Texas Essential Knowledge and Skills (TEKS) Vertical Alignment

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• Resource ID: TXLS033
• Subject: Math

### Dividing Fractions

Students will model dividing unit fractions and whole numbers.

Texas Essential Knowledge and Skills (TEKS) Related to the Unit

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• Resource ID: TXLS044
• Subject: Math

### Compound Probability: Independent vs. Dependent Events

Students will review steps for solving compound probability problems through an activity involving doughnuts. Students will then determine the difference between independent and dependent events through compound probability task cards. To encourage students to work through their struggle, students will rate themselves on a scale measuring effort and achievement at the end of the lesson.

Texas Essential Knowledge and Skills (TEKS) Vertical Alignment

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• Resource ID: TXLS052
• Subject: Math

### It’s All About the Bend, No Breaking

Students will experiment with choosing tools to measure around a previously created pet habitat in preparation for choosing appropriately sized food bowls. Students will use a graphic organizer to record tools chosen and to explain why those tools were or were not a good choice for continuous measurement.

• Resource ID: TXLS140
• Subject: Math

### Subtraction on the Move

The students will participate in a number talk focused on subtraction with the subtrahend of nine. Then they will be paired to rotate around the room working subtraction problems with and without regrouping.

Texas Essential Knowledge and Skills (TEKS) Vertical Alignment

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• Resource ID: TXLS121
• Subject: Math

Learners will engage in higher level thinking and student-centered activities by building on prior knowledge of geometry, actively listening to a polygon story, and applying the new vocabulary through various hands-on rotations.

Texas Essential Knowledge and Skills (TEKS) Vertical Alignment

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• Resource ID: TXLS136
• Subject: Math

### Let's Talk Turkey

Students will work collaboratively to apply different strategies such as pictorial representations, part-part-whole, number sentences, and open number lines to solve Thanksgiving-themed one-step and multi-step word problems.

Texas Essential Knowledge and Skills (TEKS) Vertical Alignment

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• Resource ID: TXLS151
• Subject: Math

### Models of Multiplication

Students will solve one-step multiplication problems using various multiplication strategies such as objects, pictorial models, arrays, equal groups, repeated addition, and number lines.

Texas Essential Knowledge and Skills (TEKS) Vertical Alignment

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• Resource ID: TXLS010
• Subject: Math

### Distributive Property

Students break an array apart to represent the sum of two multiplication facts, showing the distributive property.

Texas Essential Knowledge and Skills (TEKS) Related to the Unit

As we looked at the vertical alignment document document available to teachers through the Texas Education Agency and regional TEKS resource pages, it became evident why students struggle with this standard. The skills and knowledge within this standard are not addressed in the second grade TEKS. Students are also required to use multiple skills to correctly calculate the answer using the distributive property. The chosen standard is identified as a third grade readiness standard, which means that the intent is to help students develop a deep understanding of how to effectively use these skills in mathematics. This deep understanding is desired to help students at the fourth grade level since the standard is identified as a supporting standard.

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• Resource ID: TXLS039
• Subject: Math

### Area of Composite Figures

Student groups will work collaboratively using the appropriate formulas to find the area of simple figures and combine the area of each shape to find the area of composite figures in real-world situations.

Texas Essential Knowledge and Skills (TEKS) Vertical Alignment

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• Resource ID: TXLS098
• Subject: Math

### Diagramming Dinosaurs

Students will use a verbal representation to explore a constant rate of change in the size of dinosaurs over a period of time and represent their data by graphing.

• Resource ID: TXLS026
• Subject: Math

### Up, Up, and Away

Students will determine an appropriate tabular/graphic/formulaic linear solution given 3 sets of data points.

• Resource ID: TXLS108
• Subject: Math

### Finding Common Denominators

Students will work collaboratively to explore and sketch solutions to real-world addition problems involving fractions with unlike denominators. Students will be given the opportunity to use manipulatives and participate in group discussions to reflect on their learning.

Texas Essential Knowledge and Skills (TEKS) Vertical Alignment

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• Resource ID: TXLS062
• Subject: Math

### Young Architects

Students will explore area by finding square footage of the “dream home” they designed. They will use any method with which they feel confident, using skills that have been previously taught.

Texas Essential Knowledge and Skills Related to the Unit

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• Resource ID: TXLS057