How has Earth’s temperature changed over time? Scientists say there’s a difference between weather and climate. Even if a given month is cooler than average, the long-term trend shows that Earth has gotten warmer over the past century.
In this lesson, students use positive and negative integers to compare recorded monthly temperatures to their long-term averages and consider actions they can take to take care of the planet.
Operate with decimals and compare values
Use positive and negative numbers to describe how values differ from a baseline in a real-world context
Plot positive and negative values on a vertical number line
Before you begin
Students should be comfortable placing positive and negative numbers on a number line.
How do the rules of an election affect who wins? Students calculate (as a percent) how much of the electoral and popular vote different presidential candidates have received, and add with integers to explore elections under possible alternative voting systems.
Number System (NS), Ratios and Proportional Relationships (RP), Reasoning with Equations and Inequalities (REI)
How do you determine the best scorer in basketball? Students compare LeBron James and Tyson Chandler in various ways, from total points, to points per game/minute, to a new measure called net points in order to decide.
Number System (NS), Ratios and Proportional Relationships (RP)
What's the best way to bet on the Super Bowl? Students add and subtract positive and negative numbers to determine which bets have been the most effective and consider the best ways to win big on the big game.
Is there an upside to having a bad day? Students use positive integers, negative integers, and absolute value to describe the emotions of a day and discuss the important role that different emotions play in our lives.
Should the U.S. get rid of the penny? Students operate with decimals to calculate the total costs to produce different U.S. coins. Students debate eliminating the penny and then consider a world with no physical money at all.
Number System (NS)
Like the jacket, this lesson is for Members only.
Mathalicious lessons provide teachers with an opportunity to teach standards-based math through real-world topics that students care about.
How have video game consoles changed over time? Students create exponential models to predict the speed of video game processors over time, compare their predictions to observed speeds, and consider the consequences as digital simulations become increasingly lifelike.
Building Functions (BF), Interpreting Categorical and Quantitative Data (ID), Interpreting Functions (IF), Linear, Quadratic, and Exponential Models (LE), Seeing Structure in Expressions (SSE)