This task asks students to find a linear function that models something in the real world. After finding the equation of the linear relationship between the depth of the water and the distance across the channel, students have to verbalize the meaning of the slope and intercept of the line in the context of this situation.

Using circumference, this segment measures the total distant traveled by two carousel riders after the carousel has rotated 10 times.

This short video and interactive assessment activity is designed to teach fifth graders about distances between points on multiple routes (metric units).

This short video and interactive assessment activity is designed to teach fourth graders about distances between points on one route (metric units).

This short video and interactive assessment activity is designed to teach fifth graders about measurement: greater than or less than a yard?.

In Visceral Science, users have the ability to seamlessly move throughout the galaxy, jumping from star to star. In this series of lessons, we explore just how large those distances truly are, and how astronomers measure distances throughout the Universe.
To measure distance to stars in our galaxy, astronomers use a technique called parallax. In this lesson, students will explore parallax by building a simple model of how astronomers use the technique.

Estimated time required: 1-2 class periods.

Technology required for this lesson: .

In Visceral Science, users have the ability to seamlessly move throughout the galaxy, jumping from star to star. In this series of lessons, we explore just how large those distances truly are, and how astronomers measure distances throughout the Universe.
In this lesson, we will explore Standard Candles, one of the ways in which astronomers measure distances in space. Using flashlights, students will be able to observe how the same light is dimmer the further it is from an observer.

Estimated time required: 1-2 class periods.

Technology required for this lesson: .

The purpose of this task is meant to reinforce students' understanding of rational numbers as points on the number line and to provide them with a visual way of understanding that the sum of a number and its additive inverse (usually called its "opposite") is zero.

This task asks students to find equivalent expressions by visualizing a familiar activity involving distance. The given solution shows some possible equivalent expressions, but there are many variations possible.

This short video and interactive assessment activity is designed to teach fifth graders about dividing decimals by multiples of 10.

This short video and interactive assessment activity is designed to give fifth graders an overview of decimal division.

This short video and interactive assessment activity is designed to teach third graders about dividing by 1 digit numbers with illustrations.

This short video and interactive assessment activity is designed to teach fifth graders about dividing 2 digits by 2 digits with a remainder.

This short video and interactive assessment activity is designed to teach fourth graders about dividing 2 digits by 2 digits with a remainder.

This short video and interactive assessment activity is designed to teach fourth graders about the relationship between dividend, divisor and quotient.

This short video and interactive assessment activity is designed to teach third graders about finding the remainder given the total number and number of groups.

This short video and interactive assessment activity is designed to teach fourth graders about estimating the number needed using remainders.

This short video and interactive assessment activity is designed to teach third graders about grouping with illustrations II - word problems.

This short video and interactive assessment activity is designed to teach fourth graders about finding the missing number.

This short video and interactive assessment activity is designed to teach fifth graders about dividing 2-digit numbers by 2-digit numbers.