CRAs for Classroom Use

Subjects:
Science, Physics
CRA Description:
In this activity, students will use a plane to study motion with constant acceleration as blocks of various materials slide down the plane at various angles of incline. The assignment assesses studentsʼ ability to understand concepts such as potential energy, kinetic energy, and the conversion of mechanical energy to other forms (via friction).
Subjects:
Science, Biology
CRA Description:
In this activity, students will research the structure and function of major cell organelles and use an analogy to another system to describe the functions. Students will communicate their understanding in a digital slideshow or scrapbook and a written narrative.
Subjects:
Cross-disciplinary, English Language Arts, Mathematics, Science, Social Studies
CRA Description:
This assignment asks students to access, evaluate, and make use of credible, appropriate websites and other internet resources for the purpose of targeted research. Using rubrics and guidelines, students will identify, collaboratively discuss, prioritize, and then defend web resources that will support their arguments and meet the criteria for credibility, validity, and reliability.
Subjects:
Science, Biology
CRA Description:
In this activity, students will create several solutions using hydrophilic and hydrophobic substances and water, record their observations, and interpret the results in terms of intermolecular forces.
Subjects:
Science, Biology
CRA Description:
In this activity, students will explore the stages of mitosis and the primary events that occur in each stage. This activity also assesses studentsʼ understanding of mitosis by requiring students to model the process.
Subjects:
Cross-disciplinary, English Language Arts, Mathematics, Science, Social Studies
CRA Description:
This assignment asks students to navigate and use textbooks at a college level. Final Product: Students will write a 2-page analysis of the textbook used in the exercise. They will analyze the textbook’s organization and its methods of presenting information, as well as discuss strategies a reader might use to comprehend and remember material from this text.
Subjects:
Science, Physics
CRA Description:
This activity will challenge students to work in groups over an extended period of time (~1 month) to devise the “best” flight path across the USA. The groups of students will be working in a competition against their fellow classmates to come up with the flight path that minimizes cost.
Subjects:
Science, Physics
CRA Description:
In this activity, students are asked to experiment with systems in which standing waves are created in a string or spring via external vibrations. Students must determine what factors in each system determine the characteristic frequencies at which that system resonates—and they must try to identify the mathematical relationship each factor has to the resulting frequencies.
Subjects:
Science, Physics
CRA Description:
Students will examine some simple plots of a person sliding down a snow-covered hill on a sled and relate this to the riderʼs speed and position along the route.
Subjects:
Science, Physics
CRA Description:
Students will be presented with graphical representations of kinematic motion and they will be asked to use these graphs to come up with other quantities that might be useful. Students will build on the ideas of position, velocity, time and acceleration and be able to come up and use the basic understanding of calculus to relate the quantities.
Subjects:
Mathematics, Algebra II, Pre-Calculus, Science, Chemistry, Physics
CRA Description:
This activity will show students the types of mathematics that show up very frequently in college science classes. They will be asked to solve for variables involving systems of equations as well as manipulate exponential and logarithmic expressions.
Subjects:
Cross-disciplinary, English Language Arts, Mathematics, Science, Social Studies
CRA Description:
This activity challenges students to think about life after high school: Where do they hope to be? What do they want to be doing? More importantly, what is it going to take to get there, and what will the environment be like once they arrive?
Subjects:
Science, Chemistry
CRA Description:
In this assignment, students will apply the concepts of conductivity and equivalence point to an acid-base reaction. Students will then determine the concentration in molarity of an unknown Ba(OH)2 solution. Students will first use probeware to collect data as they perform a titration of barium hydroxide with sulfuric acid.