Student Task Card
Checklist for Job assignments:
Table of Contents
Job assignments (one data recorder,
two direction assistants, one presenter) in the cooperative groups should
The group should cohesively select
3 items to use for measuring the spheres (i.e. plastic links, large and/or
small paper clips, unit blocks, rulers etc.).
The direction assistants take
turns making the measurements.
The recorder documents the data
on worksheet A as the measurements are being taken.
The group collaborates on discoveries
they made that are supported by the data.
Answer the following question:
Why does the same sphere have different measurements in this activity?
Place the spheres in size order.
Compare data from activity 2
to the current data.
Match the spheres to the planets
using the data from activities 2 & 4 and combine with the comparative
planet size information from http://ic-www.arc.nasa.gov/ic/projects/bayes-group/Atlas/size/Earth/
The group decides how to present
the data to the class.
The presenter makes the presentation.