Using this resource group, teachers can focus on the topic of statistics by having students construct stem and leaf plots based on how estimations compare with actual data. Students learn to create stem and leaf plots and back-to-back stem and leaf plots to display data collected from an investigative activity. This resource group is part of the *Mathline Middle School Math Project.*

Steve Hinds demonstrates and discusses how teachers can successfully and gradually move from informal to more formal representations of functions. (Click **here **for the background essay.)

Using this resource group, teachers can focus on the topic of statistics by having students measure, predict, and determine the frequency of an event as it relates to how close whirlybirds land to a target. Students will learn to measure to the nearest centimeter and predict and determine the frequency of an event. This resource group is part of the *Mathline Elementary School Math Project.*

Using this resource group, teachers can focus on the topic of statistics by having students apply the concept of ratio and proportion to the capture-recapture statistical procedure. Students estimate the size of a large population by applying the concepts of ratio and proportion. This resource group is part of the *Mathline Middle School Math Project*.

Using this resource group, teachers can focus on the topic of probability through the application of the Monte Carlo method. Students use the Monte Carlo method to estimate a reasonable number of packs of gum that need to be purchased to win a complete set of prizes. This resource group is part of the *Mathline Middle School Math Project.*

Using this resource group, teachers can focus on the topic of probability by using a simulation involving Pascal's triangle. Students create the number sequences of Pascal's triangle and discover a relationship that this triangle has to theoretical probability. This resource group is part of the *Mathline Middle School Math Project.*

In this resource group, teachers can focus on the topic of geometry and spatial relations by having students identify and describe numerical relationships found among pattern block shapes. Students learn to join pattern block pieces together to cover a region. This resource group is part of the Mathline Elementary School Math Project.

Using this resource group, students apply the concept of ratio and percents to the distribution of letters contained in a box of Alphabits cereal. This resource group is part of the *Mathline Middle School Math Project*.

Using this resource group, teachers can focus on the topic of probability. Students develop winning game strategies based on probable outcomes of events using dice. This resource group is part of the *Mathline Middle School Math Project.*

Observe a middle school teacher using writing prompts in a mathematics lesson and consider the value of incorporating writing in the mathematics classroom.