# ALEX Classroom Resources

ALEX Classroom Resources
Subject: Mathematics (7 - 12), Mathematics (7)
Title: Human Performance & Sampling
URL: https://aptv.pbslearningmedia.org/resource/f657a984-9b44-4e15-a06e-27dc856fe810/human-performance-sampling/
Description:

Statistics and sampling are important for human performance experiments. Students will learn several sampling types including census, random, stratified random, and convenience. Examples of real-life sampling and experimental design are also shown.

Note: This video is available in both English and Spanish audio, along with corresponding closed captions.

Subject: Mathematics (7), Mathematics (7)
Title: Using Sampling and Statistics to Get Rid of the Trash in Perfectamundo
URL: https://aptv.pbslearningmedia.org/resource/mwnet-math-sp-getra/using-sampling-and-statistics-to-get-rid-of-the-trash-in-perfectamundo/
Description:

Learn how the CyberSquad uses sampling and data analysis to help solve a city's trash problem in this interactive from WNET. In the accompanying classroom activity, students watch a series of video clips in which the CyberSquad works to get rid of a mountain of trash by reducing, reusing, and recycling. Students use sampling, multiplication, and fractions to help determine the amount of trash for each method of removal and then complete a sampling and data analysis activity of their own design. This resource is part of the Math at the Core: Middle School Collection.

Subject: Mathematics (7), Mathematics (7)
Title: Thinkport | Simple Random Sampling
URL: https://aptv.pbslearningmedia.org/resource/mmpt-math-ee-intsample2/simple-random-sampling/
Description:

Gather random samples and use them to make inferences about the percentage of blue candies in a jar in this interactive from MPT. In the accompanying classroom activity, students use interactive and then use random sampling to explore a question involving hands-on materials in the classroom. They compare results from different samples and then make appropriate inferences. To get the most from the lesson, students should be comfortable expressing a fraction as a percentage and be familiar with the notion of a random sample. For a longer self-paced student tutorial using this media, see "Simple Random Sampling" on Thinkport from Maryland Public Television.

Subject: Mathematics (7), Mathematics (7)
Title: Grade 7 Mathematics Module 5, Topic C: Random Sampling and Estimating Population Characteristics