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Return to stao.org CRUCIBLE online Celltastic Cell Madness ««« By Tobey Gullick Tobey Gullick was a pre-service teacher at the University of Western Ontario when this article was written. Tobey was a recipient of the 2006 STAO Pre-service Award for this submission. Curriculum Connection: Grade 9 Biology, Reproduction (applied or academic). Purpose To review the students’ knowledge of systems in living things, focusing on the structure and function of cells in both animals and plants. This lesson will specifically examine the various organelles in an animal cell. Expectations This is a review to start the unit, so the expectations are from the grade 8 Cells, Tissues, Organs, and Systems unit: • identify organelles in cells through observation and explain their function • demonstrate that they understand the basic structure and function of animal cells • • • • • • Safety Considerations • • This activity should take between 70-75minutes. • Materials • • • Colourful pictures of each organelle for both plant cell and animal cell (laminated is best). These may be found online at a variety of sources, or from textbooks Organelle cards for both plant cell and animal cell. Each organelle has its own card; you may need to double up some organelles if they appear in both plant and animal cells (laminated is best) Organelle function cards for both plant cell and animal Celltastic Cell Madness cell. There is a card for each organelle function, you may need to double up some organelles if they appear in both plant and animal cells (laminated is best) Balloons (same number as you have of organelle function, picture and organelle cards) Velcro (optional) A blackboard or wall space Two pieces of Bristol board Ruler Markers. Check first for latex allergies in the class, someone might be allergic to the balloons. (If this is the case just eliminate this step, it is just for added excitement.) Do not let the students play with the balloon once they have been popped;, collect the plastic. Students must not break the balloons with any sharp objects. What to do To make the cards: The organelle cards and function cards are simple to make: 1. Use coloured paper and cut out little squares. Volume 39 • 1 September 2007 CRUCIBLE online 2. On each square you will either place an organelle name or a function. 3. Once you have the cards complete, consider laminating the set if you would like to reuse the activity. 4. Repeat the same steps for the picture cards. Cut out pictures of each organelle and laminate the picture. 5. You may wish to stick a small piece of Velcro to the back of each card and also on the Bristol board. This will enable students to attach the organelles easily. This is also good if you wish to reuse the cells. 6. Clear off enough wall space to post both pieces of Bristol board. 7. On one piece of Bristol board draw an outline for an animal cell (just a plasma membrane). 8. Label the plasma membrane with an organelle card and also post the organelle function card just below. This will act as a demo for what you are expecting the students to do. Return to stao.org 12. When students arrive, instruct them to take a balloon, pop it, and read their organelle card or identify the picture. 13. Explain that in the room they will find two other students who match their organelle. Explain that for each organelle in both the plant and animal cells, there will be an organelle card, an organelle function card, and a picture card. 14. Instruct students to find their matches. 15. Once they have located their group, have them post their cell cards in the appropriate cell on the wall (the Bristol board cells). Once the students have placed their information on the cell, this new student-created poster will act as a reference tool for the biology unit. Discuss the organelles with the students. You can have each group of three tell the class a little bit about their organelle that they posted if you wish. Any time you need to refer to the cell, you have a nice colourful poster on the wall, created by your students. 9. Do the same with the plant cell; you may want to draw in the cell wall as well. You may now wish to decorate your room for the arrival of your students. Hang the balloons from the ceiling, for example, and create little invitations to a cell party the day before, to get them excited about the new biology unit. 10. In each balloon, place a cell function card, an organelle card, or a picture card. 11. Blow up the balloons with air (with the cards inside) and tie off the balloon. There should be enough for at least one balloon per student. Using both plant and animal cells this shouldn’t be a problem. Celltastic Cell Madness – Page 2 Diagram of an organelle. Found at: http://en.wikipedia.org/wiki/Organelle Volume 39 • 1 September 2007