**Minds-on Physics (MOP) sample activities can be freely downloaded at
http://www.srri.umass.edu/mop**

John Clement, a long-time modeler in Houston,
uses MOP with Modeling Instruction.

MOP is a research-based constructivist
curriculum for 9th grade to college, in six volumes of student activities with
six Teacher's Guides. It
emphasizes analyzing, reasoning, explaining and strategizing - and cooperative
groups, and student discourse. It uses simple apparatus: balls, string,
washers, marbles, toy trucks, and bathroom scales; and dynamics carts, air
tracks, and spring scales are helpful.

John Clement contributed this sample MOP
activity that is especially effective in his classes.

* A012FallingMarble-measure

John wrote the following:

----------------------

You can download the following sample
activities at the MOP website, but in particular A16 is one of the most
important. A16 needs some
instructor information.

A16 is designed in such a fashion that all
students can do the A and C parts in groups. (The B part is impossible for
regular students but only possible for a few advanced students even in
college.) At the point this is
given they only have the kinematic equation X= Vt + X0, but it can be used for
B. They are given NO preliminary
instruction, but the instructor has to go around and perhaps question the
students. Only let them spin their
wheels on B for 10 minutes and then tell them to go on to C. As a wrap-up you can say that they do
not have to do B, but if some students are intrigued by it, they may take a
copy home and try to work it out.
If successful they can present the solution. You can hint that part C can give clues on how to do part B. Some students will forget that that
Miranda returns and they will have her graph continue to go up rather than go
back down so there is no solution.
Of course you can ask questions like where is Miranda at a particular
time? or does the graph match the motion map (strobe diagram)?

A41 is one that I use as a lead-in to
interactions, and it is very good.

A46 is excellent and I have the students do a
ranking.

A50 is classic free body diagrams and may not
fit in with Modeling.

A59 is excellent and I sometimes use it.

A77 is very good, especially A4. A4 is very challenging, and may be
excerpted as a separate activity.
Actually doing momentum graphs for 2 colliding objects is a must.

A86 is excellent.

A91 had good activities, but the equation part
may have a substitution of your own instructions.

FF 9 has good activities, but the 2-balloon
comparision may be done as an interactive demo. First show 2 balloons that balance the scale and then blow
one up fully tight. Double Stick
tape on the scale helps keep the ballons in place.

FF 20 is good.

Minds on Physics very sensibly integrates
general gravitational forces with electrical forces, rather than making it
separate.