Try introducing this assigment on converting measurement by presenting a scenario: "Last night I found a recipe for cookies, and it called for a half pint of butter. All I had was measuring cups - what should I do?"...

Aspiring astronomers solve problems involving mixed units of the same attribute, including time, money, length, and area. They convert large numbers into scientific notation, then compute and compare ratios to explain why drawing...

Zeroes are more important than they look! A guided practice activity takes learners through the process of both scientific and decimal notation, culminating in more complex word problems and equations.

Students are placed in the position of the person who orders supplies for the ship. They calculate quantities required for a variety of items, and then to convert such quantities into dollars.

One hundred metric tons of CO2 can accumulate in one acre of forest over time—that's a lot of carbon! In the activity, groups of middle school learners determine what makes forests important. They then solidify the concept by using a...

Students discover scales for both the solar bodies' relative sizes and their distances from the sun. They find equatorial circumference and volumes of their solar bodies. Students apply estimation strategies and proportioanl reasoning to...