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In this activity, learners use earthworms as "unknown creatures" from the South American jungle to find out how animals use senses.

In this technology activity, learners explore digital imaging and pixels. Learners "transmit" an image to a partner by creating an image on grid paper.

In this math lesson, learners identify and compare unit costs of given items. Learners use computation skills, problem solving and number sense to find the cost of an ounce of cereal.

This activity (8th activity on the page) tests learners' ability to identify things using only the sense of hearing.

In this math lesson, learners make estimates to analyze the number of apples per acre, and visualize the magnitude of one million.

In this activity, learners investigate the sense of sight and develop and conduct their own experiments.

In this math game, learners try to earn the most points by winning stacks of four dice. Learners practice number recognition and addition skills.

In this activity, learners investigate the touch sensory system and discover how to plan and carry out their own experiments.

In this activity, learners examine their tongue and taste buds.

In this activity (9th activity on the page), learners work in pairs to see how their perception of touch differs from reality.

In this activity (1st activity on the page), learners explore their sense of taste and the structure of the tongue by taste-testing various foods.

In this activity (11th activity on the page), learners use pennies to test their hearing acuity.

In this activity, learners will keep track of how much they can do in one minute. Instructors can pick something everyone will do for a minute, such as jumping up and down or drawing stars.

In this activity (3rd on the page), learners investigate circadian rhythms by examining how well people do with estimating time.

Build time sense into the schedule by asking learners to predict what can happen in a certain amount of time: We have 20 minutes before outdoor time. What can you get done?

In this family or group inquiry activity, learners use their senses to explore a local forest or woodland.

In this activity, learners explore sensors and focus specifically on how to measure humidity using a sensor.

In this activity, learners will conduct an open-ended survey, and then organize and analyze results. What languages does everyone speak? What’s the most common? the least common?

In this activity, learners investigate visual perception as well as plan and conduct their own experiments.

In this activity, learners investigate color vision as well as plan and conduct their own experiments.