John Krieger
John Krieger
@johnkrieger - Author
John Krieger
@johnkrieger - Author
I taught science to elementary and middle school students for many years, and I am currently developing and marketing educational materials. My main ... more
'%20fill='%23000000'%3e%3cg%20id='facebook'%20transform='translate(176.000000,%20176.000000)'%3e%3cpath%20d='M15.1169849,16.0001242%20C15.6045895,16.0001242%2016,15.6047137%2016,15.1169849%20L16,0.883077174%20C16,0.395286302%2015.6046516,0%2015.1169849,0%20L0.883077174,0%20C0.395286302,0%200,0.395286302%200,0.883077174%20L0,15.1169849%20C0,15.6046516%200.395224219,16.0001242%200.883077174,16.0001242%20L15.1169849,16.0001242%20L15.1169849,16.0001242%20Z%20M10.9850811,16.0001242%20L10.9850811,9.83468787%20L13.0545174,9.83468787%20L13.3643861,7.43190795%20L10.9850811,7.43190795%20L10.9850811,5.89788478%20C10.9850811,5.20222455%2011.1782548,4.72815506%2012.1758147,4.72815506%20L13.4481544,4.72759907%20L13.4481544,2.57853343%20C13.2281081,2.54925158%2012.472834,2.48383073%2011.5941313,2.48383073%20C9.75969112,2.48383073%208.50378378,3.60358363%208.50378378,5.6599234%20L8.50378378,7.43190795%20L6.42903475,7.43190795%20L6.42903475,9.83468787%20L8.50378378,9.83468787%20L8.50378378,16.0001242%20L10.9850811,16.0001242%20L10.9850811,16.0001242%20Z'%20id='icon'%20style='fill:%20rgb(255,%20255,%20255);'/%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e)
John's library
All
Empty Bookshelf
Come back later to check John's bookshelf.
About me
I taught science to elementary and middle school students for many years, and I am currently developing and marketing educational materials. My main focus right now is on astronomy, but I hope to eventually market complete science curricula.
%20-%20http://www.bohemiancoding.com/sketch%20--%3e%3ctitle%3egoogle%20logo%3c/title%3e%3cdesc%3eCreated%20with%20Sketch.%3c/desc%3e%3cg%20id='🔓-Sign-up-/-Log-in'%20stroke='none'%20stroke-width='1'%20fill='none'%20fill-rule='evenodd'%3e%3cg%20id='Sign-up'%20transform='translate(-597.000000,%20-186.000000)'%3e%3cg%20id='google-logo'%20transform='translate(597.000000,%20186.000000)'%3e%3cpath%20d='M1.36199975,18.7602168%20C0.489400966,17.0264668%20-2.84217094e-14,15.0717981%20-2.84217094e-14,13%20C-2.84217094e-14,10.9282019%200.489400966,8.97353317%201.36199975,7.23978324%20L5.83600955,10.583328%20C5.58019074,11.3426754%205.44186047,12.1550221%205.44186047,13%20C5.44186047,13.8449779%205.58019074,14.6573246%205.83600955,15.416672%20L1.36199975,18.7602168%20Z'%20id='Combined-Shape'%20fill='%23EBB000'%3e%3c/path%3e%3cpath%20d='M1.36199975,7.23978324%20C3.52572192,2.9407248%208.04556084,0%2013.3023256,0%20C16.6883721,0%2019.7116279,1.24090909%2022.0697674,3.25%20L18.2,7.03181818%20C16.8697674,5.96818182%2015.1767442,5.31818182%2013.3023256,5.31818182%20C9.81346575,5.31818182%206.86826318,7.51928768%205.83600955,10.583328%20L1.36199975,7.23978324%20Z'%20id='Combined-Shape'%20fill='%23DD3D29'%3e%3c/path%3e%3cpath%20d='M1.36019947,18.7566384%20L5.83238528,15.4058871%20C6.86135513,18.475546%209.8093737,20.6818182%2013.3023256,20.6818182%20C16.9906977,20.6818182%2019.772093,18.85%2020.4372093,15.6590909%20L13.3023256,15.6590909%20L13.3023256,10.6363636%20L25.6976744,10.6363636%20C25.8790698,11.4045455%2026,12.2318182%2026,13%20C26,21.2727273%2019.9534884,26%2013.3023256,26%20C8.04410247,26%203.52321412,23.0576433%201.36019947,18.7566384%20Z'%20id='Combined-Shape'%20fill='%232B9D4B'%3e%3c/path%3e%3cpath%20d='M21.9726923,22.7623303%20L17.7252923,19.5487548%20C19.1140559,18.6922251%2020.0803097,17.371324%2020.4372093,15.6590909%20L13.3023256,15.6590909%20L13.3023256,10.6363636%20L25.6976744,10.6363636%20C25.8790698,11.4045455%2026,12.2318182%2026,13%20C26,17.2371012%2024.4138467,20.5441398%2021.9726923,22.7623303%20Z'%20id='Combined-Shape'%20fill='%233879E7'%3e%3c/path%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e){kind=small}