There is a wealth of remote sensing education resources on the Web.  We are constantly seeing new ones appear, while older ones are updated, moved, or disappear.  The following is a selection that might be of interest.  We try to keep links up to date on a semi-regular basis, but have no control over these sites, and links might get broken.

AmericaView Resource Sharing Web Portal - Contains a wide assortment of resources with tags as to intended education level - http://americaview.org/program-areas/education/resources/

Canada Centre for Mapping and Earth Observation Tutorial: Fundamentals of Remote Sensing - Designed for senior high school or early university level - http://www.nrcan.gc.ca/earth-sciences/geomatics/satellite-imagery-air-photos/satellite-imagery-products/educational-resources/9309

Geospatial Revolution - A series of videos providing an introduction to geospatial technologies - http://www.geospatialrevolution.psu.edu/

Multispec Tutorials - Tutorials specific to this widely used free remote sensing software - https://engineering.purdue.edu/~biehl/MultiSpec/tutorials.html

NASA education materials - These materials are mostly geared for K-12 students - http://landsat.gsfc.nasa.gov/?page_id=11Front/foreword.html

NASA Wavelength - A wide variety of educational resources for various levels - https://science.nasa.gov/learners/wavelength

Remote Sensing Core Curriculum - Intended to be a fairly comprehensive curriculum suitable for higher education, the modules are undergoing an extensive revision, with some modules being current, others dated, and others to be developed - http://www.r-s-c-c.org/

USGS Tracking Change Over Time - Intended for students in grades 5–8, the lesson plan is flexible and may be used as a student self-guided tutorial or as a teacher-led class lesson - http://pubs.usgs.gov/gip/133/ 

Syracuse University - Working with GIS data - Provides definitions and lists free, open-source software resources - https://onlinegrad.syracuse.edu/blog/gis-data/