# Mathematics

## Fitting Lines to Data | Against All Odds: Unit 11

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See how plotting measurements in a scatterplot lets Colorado scientists draw a regression line to forecast water supply in this video from Against All Odds. U.S. Geological Survey scientists utilize regression lines to predict annual water runoff in this real-world example of statistics at work. Hosted by Pardis Sabeti, this video incorporates graphics to show how to use the explanatory variables and the response variables to form a regression line.

## Correlation | Against All Odds: Unit 12

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See how correlation informs the study of identical twins in this 10-minute video from the Against All Odds statistics series. Twin studies track how similar identical and fraternal twins are to test the influence of nature versus nurture. On-screen graphics illustrate the data points and demonstrate the concept of correlation.

## The Catapult Project

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Join 7th grade integrated science and math teacher Zara Acosta as she leads her students through a 6-week catapult design project. Students learn about the laws of motion and forces, probability, and engineering design, and then apply these principles to design their own catapult. Multiple firings of the catapult the project give students practice with data analysis, with the goal of improving the catapult's accuracy.

## Peg Finds Her Marble - Peg + Cat | PBS KIDS Lab

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This video will help children use a pan balance to measure and compare weights. When Peg's marble accidentally flies into one of many identical bowls of spice, Cleopatra shows her how to use a pan balance to see which bowl contains her marble.

Este juego ayudará a niños a utilizar una balanza para medir y comparar distintos pesos. Cuando la canica de Peg vuela accidentalmente y cae dentro de uno de los muchos tazones de especias idénticos, Cleopatra le muestra cómo utilizar una balanza de platos para ver cuál tazón contiene su canica.

## Measurement and Geometry | Angles: Right and Obtuse

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Angles are measured in degrees, and are classified as right, obtuse, acute, or straight. The measure of the degree of the angle determines the classification type. A right angle measures exactly 90o. An obtuse angle is any angle larger than 90o.

These resources are part of KET's Measurement and Geometry collection.

This video segment originally appeared in KET’s GED Connection series.

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

## Polynomial and Rational Functions: Building Boxes

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In this professional development video, teachers focus on the topic of polynomial and rational function patterns. This video can be used in conjunction with the "Building Boxes" lesson plan.

## Binomial Distributions | Against All Odds: Unit 21

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Explore binomial distribution in a study of inherited Sickle cell genes in this video from the Against All Odds statistics series. Host Pardis Sabeti leads students through a practical application of statistics by examining the odds of a parent passing the Sickle cell gene to a child. On-screen graphics demonstrate how binomial distribution functions when there are two possible outcomes.

## America Revealed | Gridlock

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Using this video, which examines the solutions to the problem of traffic congestion in New York City’s Times Square, teach a dynamic problem-solution lesson, "No More Traffic Jams: Identifying Gridlock Solutions in Your Community," that supports your STEM curriculum. Students explore how policy, infrastructure and technology changes can impact traffic and identify and design solutions to traffic problems in their communities.

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

## Play the Game (Odd Squad) | Teaching Tips

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A 1st grade teacher guides her class through a practice game of “Blob Chase,” instructing students to use mathematical strategies, such as estimation, to visualize solutions to the game. Concept maps and sentence strips are used to support the use of mathematical language.

## Inference for Two-Way Tables | Against All Odds: Unit 29

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Discover how Dr. Pardis Sabeti's research examines possible genetic resistance to deadly Lassa fever in West Africa in this 10-minute video from Against All Odds. Students learn how using inference for two-way tables helps untangle potential relationships between other infectious diseases.