The goal of this task is to get students to focus on the shape of the graph of the equation y=ex and how this changes depending on the sign of the exponent and on whether the exponential is in the numerator or denominator. It is also intended to develop familiarity, in the case of f and k, with the functions which are used in logistic growth models, further examined in ``Logistic Growth Model, Explicit Case'' and ``Logistic Growth Model, Abstract Verson.''

This short video and interactive assessment activity is designed to give fourth graders an overview of reflective symmetry.

The goal of this task is to work on finding multiples of some whole numbers.

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

This short video and interactive assessment activity is designed to teach second graders about identifying parallel and perpendicular lines.

This short video and interactive assessment activity is designed to teach fourth graders about calculating quotients (numbers up to 100,000).

This short video and interactive assessment activity is designed to teach fourth graders about identifyinging prime or composite numbers.

This task requires students to determine whether a number is rational or irrational. The task assumes that students are able to express a given repeating decimal as a fraction.

This short video and interactive assessment activity is designed to teach third graders an overview of quarter-circles and semi-circles.

This short video and interactive assessment activity is designed to teach second graders an overview of quarter-circles and semi-circles.

This short video and interactive assessment activity is designed to give fourth graders an overview of quarter-circles and semi-circles.

This article discusses the research-based strategy of identifying similarities and differences and provides links to web sites to develop teacher's content knowledge.

This model-eliciting activity (MEA) challenges students to develop a model for predicting the characteristics of a person who has committed a crime. Students work with real data on shoe length, height, and gender to develop the model. Students write a report to the crime victim that identifies a suspect and justifies their decision. The activity sets the stage for students to learn about regression models, and reinforces their understanding of central tendency and variability. It is suggested that this activity be used prior to a formal introduction to linear relationships.

This short video and interactive assessment activity is designed to teach third graders an overview of reflective symmetry.

This short video and interactive assessment activity is designed to teach first graders an overview of quarter-circles and semi-circles.

This short video and interactive assessment activity is designed to teach third graders about identifying the multiples of a given number.

This short video and interactive assessment activity is designed to teach third graders about identifying the properties of squares.

In this task, students use trigonometric functions to model the movement of a point around a wheel and, in the case of part (c), through space (F-TF.5). Students also interpret features of graphs in terms of the given real-world context (F-IF.4).

This is a direct task suitable for the early stages of learning about exponential functions. Students interpret the relevant parameters in terms of the real-world context and describe exponential growth.

Spreadsheets across the Curriculum Module. Students use spreadsheets to analyze data on software piracy rates in various regions throughout the world