Learners examine the properties of quadrilaterals from the point of view of rigid motion. Different types of quadrilaterals are characterized by their symmetries, so learners explore the symmetries of a described quadrilateral to...

This website introduces a taxonomy or categorization of 28 innovative item types useful in computer-based assessment. The taxonomy describes "intermediate constraint" items. These item types have responses that fall somewhere between...

Take this interactive, multiple-choice quiz over classification of organisms, then review your score and any missed questions at the end.

Answer these five multiple-choice questions about the history of classification of living things. After answers are submitted, students can review their mistakes.

Try these five self-checking quiz questions over modern classification of living things. Click on the hints to see information about each question.

Take an interactive quiz over the classification of living things. After completing the quiz, check your score, and then revisit any incorrect question for further review.

For this fourth grade performance assessment task, students sort candies according to their properties and demonstrate their understanding of binary classification principles.

A fifteen question chapter review covering concepts of the classification of life.

Learn how biologist name and classify organisms.

Here's a great dichotomous key for beginners. Use gremlin-like creatures to learn how to use more taxonomic keys.

This multiple-choice quiz on domains and kingdoms of living things allows students to get hints for each question and check their answers after submitting.

A worksheet classifying the main groups of plants.