###
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.

###
Mission Possible—The Hierarchy of Polygons

The students participated in three missions that required them to independently classify two-dimensional quadrilaterals in a hierarchy of sets and subsets using a graphic organizer based on their attributes and properties.

###
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.

###
Using Theoretical and Experimental Probability to Make Predictions

Given an event to simulate, the student will use theoretical probabilities and experimental results to make predictions and decisions.

###
Trip to the Theme Park

Students will work on a real-world based project in class involving multiplication of decimals requiring budgeting skills.

###
Modeling and Solving Two-Step Equations

Students will use various materials to create models of two-step equations. Then, they will take an equation, create their own model, and solve for the variable from the model.

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

Click below to learn about the TEKS related to this unit.

###
Equations and Inequalities

Using a graphic organizer, students will write and solve a one-variable, two-step equation using the distributive property. They also will draw a picture and justify their solution.

**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.

###
Does Paper Have Volume?

Students will be involved in a problem-solving lesson to determine if paper has volume, find the volume of a piece of paper and a ream of paper, and determine how many pieces of paper will fit inside their classroom.

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

Click below to learn about the TEKS related to this unit.

###
Discovering the Ratio of Pi

Students will discover the ratio of *pi* by relating the circumference to the diameter of various circles. Students will use this ratio to approximate the formulas for circumference.

**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 expectations are the chosen focus for the Research Lesson.

###
Volume of Triangular Prisms

Students will use hands-on manipulatives to discover the connection between the shape of the base and the height to determine the volume of a prism.

###
Strike a Pose

The students will solve two-step equations through modeling, expressing algebraically, and writing out the steps to their solutions.

###
Rational Number Stations

**Students will visit two different stations and work as a group to add, subtract, multiply, and divide rational numbers.**

###
Finding Clues to Solve Equations and Inequalities

**Students will solve one variable two-step equations and inequalities using a variety of materials while working independently and collaboratively in learning stations.**

###
Particular Polygons

Students will be able to classify 2D figures by analyzing their attributes.

###
6.08 Bonus Video: Law of Sines—The Ambiguous Case

The Law of Sines can be used to solve for sides and angles of oblique triangles. However, in some cases more than one triangle may satisfy the given conditions. We refer to this as an ambiguous case.

###
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.**

###
Exploring Probability with Independent Events

Given a problem situation, students will use experimental data or theoretical probability to make predictions and determine solutions to situations involving independent events.

###
Making Inferences and Convincing Arguments about Samples and Populations

Given problem situations that include given or collected data, the student will analyze the data and make inferences and convincing arguments based on the data.

###
Selecting and Using Appropriate Operations to Solve Problems

Given problem situations involving rational numbers, the student will select and use appropriate methods to solve the problems.

###
Estimating and Finding Solutions to Problems Involving Similarity and Rates

Given application problems involving similarity and rates, the student will estimate and determine the solutions to the problems.