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In this activity, learners will be working with predictions with a time frame of one week, or longer. Start by planting seedlings.

Computers are often used to put lists into some sort of order—for example, names into alphabetical order, appointments or e-mail by date, or items in numerical order.

In this online interactive, learners use fossils to infer temperatures 55 million years ago, at the sites where the fossils were found.

Put math of measurement into lining up — and make waiting in line fun. Choose a size characteristic that learners can physically compare, such as foot length or hair length.

Learners explore their surroundings while reasoning about categories and counting.