This activity is designed to compare and contrast the anatomy of the leg bones of a bird vs. a human.

In this biology inquiry lab, students study evolutionary relationships by making observations of preserved animal specimens, developing a question, then investigating by dissecting the specimens provided.

This activity consists of classroom lessons where children observe tree leaves and compare and contrast those leaves leading to an understanding of the terms deciduous and evergreen (and also coniferous). They then use that learning to help them identify the kind of tree based on samples on a chart.

Carbon calculators, no matter how well intended as tools to help measure energy footprints, tend to be black boxes and can produce wildly different results, depending on the calculations used to weigh various energy factors. By comparing different calculators, learners can analyze which ones are the most accurate and relevant, and which are the most transparent.

A set of three short writing assignments were designed to encourage students to think critically about the way that scientific research is reported by the popular media and the reasons that research may or may not be reported in a way that could be construed as misleading.

This lab activity is designed to allow students to experience what an increase in mechanical advantage means. Students determine the mechanical advantage of three pulley set-ups. Students also measure the work input and output, then calculate the efficiency. Finally, students determine the relationship between the mechanical advantage and the efficiency of the pulleys.

In this field investigation, students compare various soil samples taken from specific locations. Students compare samples, record data, create a chart or graph, and journal.

Spreadsheets Across the Curriculum module/Geology of National Parks course. Students study how discharge per unit area varies with elevation in the high country of Glacier National Park from USGS hydrograph data from Swiftcurrent Creek and its tributary Grinnell Creek..

In this model eliciting activity (MEA), students are hired by a travel magazine to determine if two airlines that fly into Chicago are equally reliable. They examine data of flight arrival delay times for both airlines flying out of the same city. They first identify measures that can be used to compare the two airlines. Working in small groups, the students decide the size of a meaningful difference between the airlines for each measure and use that information to determine a rule that for deciding if one airline is more reliable than another. The students apply their rule to flight arrival delay data for the two airlines from four additional departure cities, and use the results to write a report to the magazine editor on whether or not one airline is more reliable than the other. This activity can serve as an introduction to ideas of central tendency and variability, and prepares students for formal approaches to comparing groups.

This is an inquiry where students will be comparing and contrasting two different types of leaves with a partner.

The lesson is designed for fourth grade students using scientific investigation to identify and compare the basic parts of a plant and animal cells. This activity consists of several steps over a period of several days. It includes student use of microscopes for observations and journals to collect data to identify and classify the basic parts of plant and animal cells. The assessment has an individual component and uses student work.

This assignment exposes students to data on economic growth and development as commonly measured by per capita GDP and the Human Development Index (HDI) for 100 countries of the world. There is a big debate about how good an indicator HDI is compared to GDP per capita as a measure of development.

Spreadsheets Across the Curriculum module. Students build spreadsheets to find dosages in mL/admin from prescription in mg/day/kg and admins/day; body weight in lbs; and concentration in mg/mL.

These are interactive lecture-demonstration questions probe student understanding of fundamental concepts in the photoelectric effect.

It this exercise the students will discover that pure water does not conduct electricity and that dissolving different substances in water may or may not cause it to conduct electricity.

This activity involves an investigation into whether items in a classroom are conductors or insulators. The students predict and then test the items using a complete circuit they have built.

Students apply economics, politics and sociology to better understand why cap and trade is the preferred political approach, but also why it's potentially problematic.

This is a discovery bases lesson on the reflective properties of the conics: parabolas, ellipses, and hyperbolas.

In this activity, you will read the book "Diary of a Worm" and then your students will create their own diary.