This lesson for English Language Learners (ELLs) discusses a movement that brings police officers closer to the people they serve, community policing. In this lesson, learners will practice reading, listening, speaking and writing. All activities are automatically graded with feedback provided to the learner upon submission.

iNaturalist is an identification key for plants, protist, fungi and animal species. It has online features as well as an app for Apple or Android, and is a joint initiative between California Academy of Sciences and the National Geographic Society.

The ComPADRE Digital Library is a network of free online resource collections supporting faculty, students, and teachers in Physics and Astronomy Education. Each collection contains materials designed for a specific community.

Select teaching resources to start exploring. Also select resources from the top menu to find more options - including for students.

Hank introduces us to comparative anatomy, which studies the similarities and differences in animal anatomy to support the theory of evolution and the shared ancestry of living things.

This short video and interactive assessment activity is designed to teach second graders about making observations about capacity (metric units).

The Compare & Contrast Map is an interactive graphic organizer that enables students to organize and outline their ideas for different kinds of comparison essays.

This short video and interactive assessment activity is designed to teach second graders about comparing the capacity by formula in quarts, pints and cups.

Students examine different types of fabric and their characteristics. Using magnifying glasses and sandpaper, they test and observe the weave and wear quality of fabric samples. By comparing the qualities of different fabrics they come to understand why so many different types of fabric exist and are able to recognize or suggest different uses for them.

This short video and interactive assessment activity is designed to teach second graders about comparing gallons and quarts by pictures.

In small groups, students experiment and observe the similarities and differences between human-made objects and objects from nature. They compare the function and structure of hollow bones with drinking straws, bird beaks, tool pliers, bat wings and airplane wings. Observations are recorded in a compare & contrast chart, and then shared in a classroom discussion, along with follow up assessment activities such as journal writing and Venn diagrams.

This short video and interactive assessment activity is designed to teach first graders about multiple object lengths (english measurement).

This short video and interactive assessment activity is designed to teach third graders about comparing values of two numbers.

This short video and interactive assessment activity is designed to teach second graders about comparing values of multiple numbers within a set.

This short video and interactive assessment activity is designed to teach fourth graders about comparing values of two numbers ii.

This short video and interactive assessment activity is designed to teach second graders about comparing gallons, pints, and quarts by formula.

This short video and interactive assessment activity is designed to teach second graders about mixed operations: selecting the correct sentence.

This short video and interactive assessment activity is designed to teach second graders about more and less (addition and subtraction).

This short video and interactive assessment activity is designed to teach second graders about comparing with two-step addition and subtraction.

This short video and interactive assessment activity is designed to teach third graders about dual place value.

This short video and interactive assessment activity is designed to teach fourth graders about dual place value.