The second annual workshop on Inland Waters held at Lakeside Laboratory at Lake West Okoboji has ended

Krohn, Milbert

University of Northern Iowa

Iowa Science Teachers Journal Volume 10 Number 1 Article 4 1972 2nd Annual Workshop on Inland Waters Spawns Project on Little Sioux Milbert Krohn Follow this and additional works at: https://scholarworks.uni.edu/istj  Part of the Science and Mathematics Education Commons Let us know how access to this document benefits you Copyright © Copyright 1972 by the Iowa Academy of Science Recommended Citation Krohn, Milbert (1972) "2nd Annual Workshop on Inland Waters Spawns Project on Little Sioux," Iowa Science Teachers Journal: Vol. 10 : No. 1 , Article 4. Available at: https://scholarworks.uni.edu/istj/vol10/iss1/4 This Article is brought to you for free and open access by the Iowa Academy of Science at UNI ScholarWorks. It has been accepted for inclusion in Iowa Science Teachers Journal by an authorized editor of UNI ScholarWorks. For more information, please contact scholarworks@uni.edu. and allow it to set over night or longer. Now examine the stalks or stem. What changes have taken place? B. Next take a short piece of the stem and split it lengthwise (see page 140 of Life diagram 3 for more information on how to cut the stalk) and look at it under a dissecting stereoscope. Sketch one or two of the tubes that you split open. C. Now cut a very thin cross section of the stem and examine it under a compound micro-scope. (See diagram 2 on page 140 of Life.) Sketch and label the pattern of water tubes. D. Select a small piece of stem from a dicot (ask the instructor) and make a cross-section slide as you did with the celery and sketch and label the water tube pattern you see. (See figure 24.10 on page 335 of Modern Biology.) Fern Spore Case Lab Ferns are the only group of vascular plants that reproduce by spores. The others use seeds. You know, from past experience, that seeds are dispersed in many ways. Some seeds are carried by the wind like the milkweed. Birds carry poison ivy seeds, or seeds may be carried by water and animal's fur. The spores are very tiny and do not move except by the wind, water, and a "spring snapper." When the air is moist the spore cases which contain the spores, spring open. The edge of the spore case opens up and acts as a coiled spring to propel the spores out into the world. In this activity you will be looking at a fern leaflet and seeing the springed spore case and some spores. Look at the diagram on page 78 of WLT. A. From·an instructor, get a fern leaflet and examine it . Notice how the edges are curled up in some places . These still have the spore cases in t hem! Those that are open and fuzzy -9-on the back have already dispersed their spores . B. Take a clean slide and place the leaflet on it and smash part of it with your finger lnd you will notice little black granules which are the spore cases. Use a microscope to examine them. Sketch one of the spore cases and label the "spring." C. Next add water and a cover slip. Smash the cover slip down to force the spores out. Take a good look and have your slide checked by an instructor. Slide check ---------You may want to take a slide of spore cases and add water and heat them to see if you can make them snap open. These types of methods have proved to be effective in our particular educational setting. We believe that the added incentives, which are provided for the learner by such methods, have enhanced the interests and the achievement of students. Therefore, we would like to see this model implemented into more classrooms throughout the state of Iowa. DID YOU KNOW ABOUT OUR ACTIVITY? Milbert Krohn Past President 506 20th Street Spirit Lake, Iowa 51306 The Iowa Science Teachers is sponsoring the following activities for science teachers of Iowa. Inland Waters Seminar Earth Science Seminar Junior High Seminar. Fall Programs ... . Short Course .... . Iowa Academy Science Teaching Section SSMA National Meeting St. Louis NSTA Regional Junior Academy Field Days Bloody Run Okoboji Luther Camp Lake Okoboji Knoxville Oskaloosa Des Moines, !SEA Ames Gri nne 11 Des Moines 73 1972 Earth Science Aquatic Field Winter Field We are going to try to expand our program to include seminars in physics, chemistry and elementary science. We need teachers with ideas to join us in our effort to ge t science education moving. We will help supply the personnel for your idea. Get wi th us in our movement to place Iowa in the forefront of activity in science education. 2ND ANNUAL WORKSHOP ON INLAND WATERS SPAWNS PROJECT ON LITTLE SIOUX Milbert Krohn The second annual workshop on Inland Waters held at Lakeside Laboratory at Lake West Okoboji has ended . Participants have returned to their home schools and are now engaged in -10-measuring several chemical and physical parameters al ong t he Little Sioux River . The project, sponsored by the Iowa Science Teachers and the Iowa Conservation Education Council, brought 18 high school teachers together to learn about procedures for measuring the character of a moving body of water . The teachers are now training teams of students to assist them in their projects. The infor-ma t ion is going to be channeled t o a centra l collecting depot. From here it wi l l be sent back to the participating schools. Students and teachers alike will (hopefully) produce papers for presentation at the Iowa Academy of Science - Science Teaching section in the near future. Materi als will be made avail-able to other governmental agencies if they desire. It is hoped that the program, if successful, will become a template . for research teaching throughout the midwest and perhaps the entire country. Co-directors of the project are: Milbert Krohn, Spirit Lake Conrnuni ty School District, and Paul Joslin, Science Education, Drake Uni versity. Should any teachers be i nterested in setting up s imil ar groups in other par t s of the state they are invited to inquire about procedures from either of the directors. WHAT DID YOU TEACH TODAY? Parents on the Run Ma rguerite and Will ard Beecher Grosset and Du nlap, New York, 1967 "I ha ve taught in high school for ten years. During t hat time I have given assignments, among others , to a murderer , a pugil i st, a thi ef and an imbecil e. The murderer was a quiet littl e boy who sat on the f ront seat and regarded me wi t h pal e blue eyes; the pugilist loung ed by the wi ndow and le t loose at interva l s in a raucous laughter that startl ed even the geraniums ; the thief was a gay-hearted Lothario with a song on his li ps, and the imbecile, a soft-eyed little animal seeking the shadows. · The mu rderer awaits death i n the state peni t entiary; the pugilist lost an eye in a brawl in Hong Kong; the thief by standing on tip- toe can see t he window of my room from the county-jail; and the once gentl e-eyed little moron beats his head agai nst a padded wall in the state asylum. Al l these pupils once sat i n my room, sat and looked at me gravely across worn brown desks . I must have been a grea t help t o t hose pupi l s -I taught them the rhyming scheme of the El izabethan sonnet and how to diagram a complex sentence •.. " SO YOU WANT TO BE AN OUTSTANDING TEACHER ! Barton Philipps Science Education Center The University of Iowa Iowa City, Iowa 52240 Great teachers are great because of t he long vacations, short working day , easy work (i f you call it work), and good pay . WHAT? Who said that? Truely GREAT teachers rarel y t ake a vacation and work overtime without pay , to guide the students in learning situations . And as fo r the pay, the garbage collectors in ma ny areas make more than the t eachers . You can tell if a teacher is i nterested i n teaching as soon as you wal k into the class-room. If they let you in the door, j ust ~sk yourself a few questi ons as you look around. What is the philosophy of the school? Are they dedicated to pushing every child into college so the school looks good, or are they i nterested in the child 1 s self image? Is i t a bare ; drab room or are the walls filled wi th things t he ch ildren have done and items of i nte rest to the child? Are the children going through the motions of work or are they smiling and busily engaged in class room acti vities? Do the children do the same thing every day , or is there variety i n the dai ly schedule? Does t he child have ti me to think out an answer and then venture a guess , or is he or she afraid of being wrong? Which is better - t he right answer or t he processes of thinking that were involved? Does the child receive i ndi vi dual help or is every-thing done in groups? Must lessons be done in silence, or i s communi cation permitted on a non-disturbing level? What chance does the child have t o pursue an area of hi s own interes t? Does t he teacher make too many negative remarks about the chi ldren1 s work? What do the chi ldren say about school , or don 1 t they say anything? When is the last time you vis ited your child 1s classroom? We need i nterested people whether t hey are parent s or not. YOU need to get i nvolved with your schools. If you are 

2nd Annual Workshop on Inland Waters Spawns Project on Little Sioux

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2nd Annual Workshop on Inland Waters Spawns Project on Little Sioux

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