In this illustrated problem set, students use pi to compare the sizes of Mars landing areas, calculate the length of a year for a distant solar system object, measure the depth of the ocean from an airplane, and determine the diameter of a debris disk.

Students predict the scale of our solar system and the distance between planets, then check their answers using fractions.

Students will compute the approximate travel time to planets in the solar system using different modes of transportation.

In this activity, students use spreadsheet software and their knowledge of scale, proportion and ratios to develop a solar system model that fits on a playground.

Students model the position of the planets around the Sun and then model viewing them from Earth on any given date.

Students create a scale model of the solar system using beads and string.

In this illustrated math problem, students use the mathematical constant pi to find the "habitable zone" around a distant star and determine which of its planets are in that zone.

In this illustrated math problem, students use pi to compare the size of the landing zones for the Mars rovers Curiosity and Perseverance.

In this illustrated math problem, students use pi and physics to calculate how long the Kuiper Belt object Arrokoth takes to orbit the Sun.