Students explore letter Aa. In this letter recognition lesson, students participate in country, state, food, literature, physical education, colors, careers, music, and game activities that are linked to the main lesson page....

Second graders examine the formation of fossils and list the different types. They make cast model of a dinosaur fossil. They write about conditions that are necessary for fossils to form and create a model of a buried fossil.

Students practice making educated guesses about objects in their hands. They guess what the object is without looking at it and choose a word that describes it. They practice using new vocabulary as well.

Students discover how to estimate the age of redwood trees. They measure the trees' diameters by using string to calculate the circumferences. Students conclude by discussing the science of dendrochronolgy.

Students listen to a story about a sea turtle sanctuary. They participate in a discussion about the sea turtles. They analyze some of the hazards that can hurt sea turtles and brainstorm ways to help the problem. They write and...

First Graders need to use direct and indirect comparisons to measure objects. Today they will use their new knowledge of dinosaurs to find the longest of the giant lizards.

The purpose of this task is to illustrate through an absurd example the fact that in real life quantities are reported to a certain level of accuracy, and it does not make sense to treat them as having greater accuracy. Aligns with N-Q.A.3.

This problem introduces Carbon 14 dating which is used by scientists to date certain organic material. This version is based on the ratio of Carbon 14 to Carbon 12, which decreases at a constant exponential rate after an organism dies....

Animal Fun is here! For this week's adventure, Animal Measurement, children will explore measurement with the help of hermit crabs (investigating size correspondence by matching a hermit crab to its appropriate shell), beavers (visual...