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Lines of Symmetry

Students will work collaboratively with a partner to discover what is a line of symmetry.

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45-45-90 Triangles

To learn the pattern of the side lengths of a 45-45-90 triangle, students complete a gallery walk, a card sort activity starting with using the Pythagorean theorem, and activity to locate if there is an error in a presented problem and if so to identify what the error is.

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Composing and Decomposing a Number

In this lesson, students will learn how to compose a number with base 10 blocks, decompose a ten, and then compose the same number a different way.

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Are You Part of Our Family?

**The teacher will introduce Fact Families through literature. Students will create and represent various Fact Families within 10.**

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Working with Literal Equations

The lesson will provide a conceptual basis for illustrating the parallelism between solving multi-step equations and translating literal equations into solutions for specified variables.

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Exploring Number Sense

Students will use manipulatives and a number path to identify numbers one less than or more than a given number.

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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**

Click below to learn about the TEKS related to the unit and Research Lesson. The highlighted student expectation(s) is the chosen focus for the Research Lesson.

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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**

Click below to learn about the TEKS related to the unit and Research Lesson.

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Making Ten is Easy as Pie!

Students will practice composing 10 by interacting with a counting story, playing a dice game with ten frames and response sheets, and participating in a small group to extend the learning with three addends.

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

Click below to learn about the TEKS related to this unit. The highlighted student expectation(s) is the chosen focus for the Research Lesson.

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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.

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Building Stamina During Stations

**Students will participate in differentiated stations based on counting coins, comparing values, and purchasing items within various wants and needs. Students will self-assess their stamina development throughout the lesson.**

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Amazing Graphs

Students will understand the different representations of graphical data, through reading, listening, and comprehension of a word problem so they can devise a problem solving plan that addresses the entire problem.

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Math Problem Solving CAN DRIVE good problem solvers!: 1st grade CAN Drive

**Students will help the principal collect cans for a can food drive. The students will be able to solve math word problems using the UPS✓ (UNDERSTAND what the problem is asking, make a PLAN, SOLVE the problem, and then CHECK to see if the answer makes sense) song/strategy, draw to show their work, and write a number sentence to go with their problem. **

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Understanding Mathematical Word Problems

The student is expected to represent word problems involving addition and subtraction of whole numbers up to 20 using concrete and pictorial models and number sentences.

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Decomposing Number Exploration

**Students will decompose a number up to 20 using manipulatives and graphic organizers.**

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Proving Triangles Congruent Using the Side-Side-Side and Side-Angle-Side Postulates

**Students will prove: Two triangles are congruent using the Side-Side-Side (SSS) and Side-Angle-Side (SAS) postulates.**

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Understanding the Equal Sign and Balancing Equations

Students will apply addition strategies as they complete four different station rotations to help understand that the equal sign represents a relationship where the expressions on each side of the equal sign represents the same value.

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Comparing in Stations

**Students will extend their knowledge of greater than and less than to numbers 80–120. Students will work in stations to deepen their understanding and have multiple experiences with the concept.**

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Square Root Regression

This lesson is a student discovery lesson that culminates in square root regression with technology. Students will use their study of inverses, the relationship between quadratic and square root functions, their previous knowledge of regression, and determine how to find the square root regression of real-world data.

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Identifying Key Features of Quadratic Functions

**The students will be able to graph quadratic functions using key attributes of quadratic equations.**