Given examples of circles and the lines that intersect them, the student will use explorations and concrete models to formulate and test conjectures about the properties of and relationships among the resulting angles.

Given geometric figures on the coordinate plane, the student will apply the definition of congruence, in terms of rigid transformations, to identify congruent figures. The student will also identify and distinguish between reflectional...

Given information about the properties of polygons, students will verify theorems about the relationships, including the sum of interior angles, and apply these relationships to solve problems.

The student will verify theorems about angles formed by parallel lines cut by a transversal and apply these relationships to solve problems.

Given examples of quadrilaterals and their component parts, the student will use explorations and concrete models to prove a quadrilateral is a parallelogram, rectangle, square, or rhombus using opposite sides, opposite angles, or...

Given problem situations involving similar figures, the student will use and extend similarity properties and transformations to explore and justify conjectures about the given figures.

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.

Given verbal descriptions and tables that represent problem situations, the student will make predictions for real-world problems.

Given a scatterplot where a linear function is the best fit, the student will interpret the slope and intercepts, determine an equation using two data points, identify the conditions under which the function is valid, and use the linear...

This activity provides an opportunity for students to model the volume of a rectangular prism and make connections to the formula, V=l ' w ' h.

Given problem situations, the student will select and use appropriate operations to solve problems and justify the choice of operations.

This activity provides an opportunity for students to build an understanding of parallel and intersecting lines.

Given verbal, symbolic, numerical, or graphical representations of problem situations, the student will interpret and predict the effects of changing the slope in the context of the situations.

Given verbal, symbolic, numerical, or graphical representations of problem situations, the student will interpret and predict the effects of changing the y-intercept in the context of the situations.

Given data in table form, the student will use the data table to interpret solutions to problems.

Given data in the form of an equation, the student will use the equation to interpret solutions to problems.

Given data in a verbal description, the student will use equations and tables to solve and interpret solutions to problems.

Given parameter changes for rational functions, students will be able to predict the resulting changes on important attributes of the function, including domain and range and asymptotic behavior.

These activities provide an opportunity for students to explore reflections both on and off of a coordinate plane.

This learning game provides an opportunity for students to represent whole numbers with pictures.

Given an equation or inequality, the student will select a method (algebraically, graphically, or calculator) to solve the equation or inequality.

Given problem situations, the student will select and use appropriate operations to solve problems and justify the choice of operations.

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

[Accessible by TX Educators. Free Registration/Login Required] Given a variety of data (including line plots, line graphs, stem and leaf plots, circle graphs, bar graphs, box and whisker plots, histograms, and Venn diagrams), the student...